Issue:
Bug: [FEATURE] Add connector template code for Tesouro



Template PR for Tesouro integration

Pull request description:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [ ] Bugfix
- [x] New feature
- [ ] Enhancement
- [ ] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
<!-- Describe your changes in detail -->
Template for Tesouro integration

### Additional Changes

- [ ] This PR modifies the API contract
- [ ] This PR modifies the database schema
- [ ] This PR modifies application configuration/environment variables

<!--
Provide links to the files with corresponding changes.

Following are the paths where you can find config files:
1. `config`
2. `crates/router/src/configs`
3. `loadtest/config`
-->


## Motivation and Context
<!--
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If it fixes an open issue, please link to the issue here.

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## How did you test it?
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Did you write an integration/unit/API test to verify the code changes?
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## Checklist
<!-- Put an `x` in the boxes that apply -->

- [x] I formatted the code `cargo +nightly fmt --all`
- [x] I addressed lints thrown by `cargo clippy`
- [ ] I reviewed the submitted code
- [ ] I added unit tests for my changes where possible


Testing:

Patch:
diff --git a/config/config.example.toml b/config/config.example.toml
index b69f959fbe3..fb2a9107f0a 100644
--- a/config/config.example.toml
+++ b/config/config.example.toml
@@ -304,6 +304,7 @@ stax.base_url = "https://apiprod.fattlabs.com/"
 stripe.base_url = "https://api.stripe.com/"
 stripebilling.base_url = "https://api.stripe.com/"
 taxjar.base_url = "https://api.sandbox.taxjar.com/v2/"
+tesouro.base_url = "https://api.sandbox.tesouro.com"
 threedsecureio.base_url = "https://service.sandbox.3dsecure.io"
 thunes.base_url = "https://api.limonetikqualif.com/"
 tokenex.base_url = "https://test-api.tokenex.com"
diff --git a/config/deployments/integration_test.toml b/config/deployments/integration_test.toml
index fdcb7891f30..067a84374cd 100644
--- a/config/deployments/integration_test.toml
+++ b/config/deployments/integration_test.toml
@@ -142,6 +142,7 @@ stripe.base_url = "https://api.stripe.com/"
 stripe.base_url_file_upload = "https://files.stripe.com/"
 stripebilling.base_url = "https://api.stripe.com/"
 taxjar.base_url = "https://api.sandbox.taxjar.com/v2/"
+tesouro.base_url = "https://api.sandbox.tesouro.com"
 thunes.base_url = "https://api.limonetikqualif.com/"
 tokenex.base_url = "https://test-api.tokenex.com"
 tokenio.base_url = "https://api.sandbox.token.io"
diff --git a/config/deployments/production.toml b/config/deployments/production.toml
index 552a6ebb0ed..eddcba5f2cf 100644
--- a/config/deployments/production.toml
+++ b/config/deployments/production.toml
@@ -146,6 +146,7 @@ stripe.base_url = "https://api.stripe.com/"
 stripe.base_url_file_upload = "https://files.stripe.com/"
 stripebilling.base_url = "https://api.stripe.com/"
 taxjar.base_url = "https://api.taxjar.com/v2/"
+tesouro.base_url = "https://api.tesouro.com"
 thunes.base_url = "https://api.limonetik.com/"
 tokenex.base_url = "https://api.tokenex.com"
 tokenio.base_url = "https://api.token.io"
diff --git a/config/deployments/sandbox.toml b/config/deployments/sandbox.toml
index 520883d5558..5e5ffabb103 100644
--- a/config/deployments/sandbox.toml
+++ b/config/deployments/sandbox.toml
@@ -146,6 +146,7 @@ stripe.base_url = "https://api.stripe.com/"
 stripe.base_url_file_upload = "https://files.stripe.com/"
 stripebilling.base_url = "https://api.stripe.com/"
 taxjar.base_url = "https://api.sandbox.taxjar.com/v2/"
+tesouro.base_url = "https://api.sandbox.tesouro.com"
 thunes.base_url = "https://api.limonetikqualif.com/"
 tokenex.base_url = "https://test-api.tokenex.com"
 tokenio.base_url = "https://api.sandbox.token.io"
diff --git a/config/development.toml b/config/development.toml
index 3bab0fc27bb..dde12f9d7e1 100644
--- a/config/development.toml
+++ b/config/development.toml
@@ -342,6 +342,7 @@ stax.base_url = "https://apiprod.fattlabs.com/"
 stripe.base_url = "https://api.stripe.com/"
 stripebilling.base_url = "https://api.stripe.com/"
 taxjar.base_url = "https://api.sandbox.taxjar.com/v2/"
+tesouro.base_url = "https://api.sandbox.tesouro.com"
 threedsecureio.base_url = "https://service.sandbox.3dsecure.io"
 thunes.base_url = "https://api.limonetikqualif.com/"
 tokenex.base_url = "https://test-api.tokenex.com"
diff --git a/config/docker_compose.toml b/config/docker_compose.toml
index fa082b35522..cad8c309fd9 100644
--- a/config/docker_compose.toml
+++ b/config/docker_compose.toml
@@ -230,6 +230,7 @@ stax.base_url = "https://apiprod.fattlabs.com/"
 stripe.base_url = "https://api.stripe.com/"
 stripebilling.base_url = "https://api.stripe.com/"
 taxjar.base_url = "https://api.sandbox.taxjar.com/v2/"
+tesouro.base_url = "https://api.sandbox.tesouro.com"
 threedsecureio.base_url = "https://service.sandbox.3dsecure.io"
 thunes.base_url = "https://api.limonetikqualif.com/"
 tokenex.base_url = "https://test-api.tokenex.com"
diff --git a/crates/connector_configs/src/connector.rs b/crates/connector_configs/src/connector.rs
index fec33f7a096..1421acc3373 100644
--- a/crates/connector_configs/src/connector.rs
+++ b/crates/connector_configs/src/connector.rs
@@ -365,6 +365,7 @@ pub struct ConnectorConfig {
     pub zen: Option<ConnectorTomlConfig>,
     pub zsl: Option<ConnectorTomlConfig>,
     pub taxjar: Option<ConnectorTomlConfig>,
+    pub tesouro: Option<ConnectorTomlConfig>,
     pub ctp_mastercard: Option<ConnectorTomlConfig>,
     pub unified_authentication_service: Option<ConnectorTomlConfig>,
 }
diff --git a/crates/connector_configs/toml/development.toml b/crates/connector_configs/toml/development.toml
index 06324d681bb..298825066f1 100644
--- a/crates/connector_configs/toml/development.toml
+++ b/crates/connector_configs/toml/development.toml
@@ -7178,3 +7178,8 @@ label = "Site where transaction is initiated"
 placeholder = "Enter site where transaction is initiated"
 required = true
 type = "Text"
+
+[tesouro]
+[tesouro.connector_auth.BodyKey]
+api_key="Client ID"
+key1="Client Secret"
\ No newline at end of file
diff --git a/crates/connector_configs/toml/production.toml b/crates/connector_configs/toml/production.toml
index 9f481999194..14db75303c3 100644
--- a/crates/connector_configs/toml/production.toml
+++ b/crates/connector_configs/toml/production.toml
@@ -5915,3 +5915,8 @@ label = "Site where transaction is initiated"
 placeholder = "Enter site where transaction is initiated"
 required = true
 type = "Text"
+
+[tesouro]
+[tesouro.connector_auth.BodyKey]
+api_key="Client ID"
+key1="Client Secret"
\ No newline at end of file
diff --git a/crates/connector_configs/toml/sandbox.toml b/crates/connector_configs/toml/sandbox.toml
index 9084f0c7635..ca5ea1459dc 100644
--- a/crates/connector_configs/toml/sandbox.toml
+++ b/crates/connector_configs/toml/sandbox.toml
@@ -7156,3 +7156,8 @@ label = "Site where transaction is initiated"
 placeholder = "Enter site where transaction is initiated"
 required = true
 type = "Text"
+
+[tesouro]
+[tesouro.connector_auth.BodyKey]
+api_key="Client ID"
+key1="Client Secret"
\ No newline at end of file
diff --git a/crates/hyperswitch_connectors/src/connectors.rs b/crates/hyperswitch_connectors/src/connectors.rs
index d0b8ed74eb9..60becb9804c 100644
--- a/crates/hyperswitch_connectors/src/connectors.rs
+++ b/crates/hyperswitch_connectors/src/connectors.rs
@@ -109,6 +109,7 @@ pub mod stax;
 pub mod stripe;
 pub mod stripebilling;
 pub mod taxjar;
+pub mod tesouro;
 pub mod threedsecureio;
 pub mod thunes;
 pub mod tokenex;
@@ -157,9 +158,9 @@ pub use self::{
     powertranz::Powertranz, prophetpay::Prophetpay, rapyd::Rapyd, razorpay::Razorpay,
     recurly::Recurly, redsys::Redsys, riskified::Riskified, santander::Santander, shift4::Shift4,
     sift::Sift, signifyd::Signifyd, silverflow::Silverflow, square::Square, stax::Stax,
-    stripe::Stripe, stripebilling::Stripebilling, taxjar::Taxjar, threedsecureio::Threedsecureio,
-    thunes::Thunes, tokenex::Tokenex, tokenio::Tokenio, trustpay::Trustpay,
-    trustpayments::Trustpayments, tsys::Tsys,
+    stripe::Stripe, stripebilling::Stripebilling, taxjar::Taxjar, tesouro::Tesouro,
+    threedsecureio::Threedsecureio, thunes::Thunes, tokenex::Tokenex, tokenio::Tokenio,
+    trustpay::Trustpay, trustpayments::Trustpayments, tsys::Tsys,
     unified_authentication_service::UnifiedAuthenticationService, vgs::Vgs, volt::Volt,
     wellsfargo::Wellsfargo, wellsfargopayout::Wellsfargopayout, wise::Wise, worldline::Worldline,
     worldpay::Worldpay, worldpayvantiv::Worldpayvantiv, worldpayxml::Worldpayxml, xendit::Xendit,
diff --git a/crates/hyperswitch_connectors/src/connectors/tesouro.rs b/crates/hyperswitch_connectors/src/connectors/tesouro.rs
new file mode 100644
index 00000000000..cdd0d81c6df
--- /dev/null
+++ b/crates/hyperswitch_connectors/src/connectors/tesouro.rs
@@ -0,0 +1,624 @@
+pub mod transformers;
+
+use std::sync::LazyLock;
+
+use common_enums::enums;
+use common_utils::{
+    errors::CustomResult,
+    ext_traits::BytesExt,
+    request::{Method, Request, RequestBuilder, RequestContent},
+    types::{AmountConvertor, FloatMajorUnit, FloatMajorUnitForConnector},
+};
+use error_stack::{report, ResultExt};
+use hyperswitch_domain_models::{
+    payment_method_data::PaymentMethodData,
+    router_data::{AccessToken, ConnectorAuthType, ErrorResponse, RouterData},
+    router_flow_types::{
+        access_token_auth::AccessTokenAuth,
+        payments::{Authorize, Capture, PSync, PaymentMethodToken, Session, SetupMandate, Void},
+        refunds::{Execute, RSync},
+    },
+    router_request_types::{
+        AccessTokenRequestData, PaymentMethodTokenizationData, PaymentsAuthorizeData,
+        PaymentsCancelData, PaymentsCaptureData, PaymentsSessionData, PaymentsSyncData,
+        RefundsData, SetupMandateRequestData,
+    },
+    router_response_types::{
+        ConnectorInfo, PaymentsResponseData, RefundsResponseData, SupportedPaymentMethods,
+    },
+    types::{
+        PaymentsAuthorizeRouterData, PaymentsCaptureRouterData, PaymentsSyncRouterData,
+        RefundSyncRouterData, RefundsRouterData,
+    },
+};
+use hyperswitch_interfaces::{
+    api::{
+        self, ConnectorCommon, ConnectorCommonExt, ConnectorIntegration, ConnectorSpecifications,
+        ConnectorValidation,
+    },
+    configs::Connectors,
+    errors,
+    events::connector_api_logs::ConnectorEvent,
+    types::{self, Response},
+    webhooks,
+};
+use masking::{ExposeInterface, Mask};
+use transformers as tesouro;
+
+use crate::{constants::headers, types::ResponseRouterData, utils};
+
+#[derive(Clone)]
+pub struct Tesouro {
+    amount_converter: &'static (dyn AmountConvertor<Output = FloatMajorUnit> + Sync),
+}
+
+impl Tesouro {
+    pub fn new() -> &'static Self {
+        &Self {
+            amount_converter: &FloatMajorUnitForConnector,
+        }
+    }
+}
+
+impl api::Payment for Tesouro {}
+impl api::PaymentSession for Tesouro {}
+impl api::ConnectorAccessToken for Tesouro {}
+impl api::MandateSetup for Tesouro {}
+impl api::PaymentAuthorize for Tesouro {}
+impl api::PaymentSync for Tesouro {}
+impl api::PaymentCapture for Tesouro {}
+impl api::PaymentVoid for Tesouro {}
+impl api::Refund for Tesouro {}
+impl api::RefundExecute for Tesouro {}
+impl api::RefundSync for Tesouro {}
+impl api::PaymentToken for Tesouro {}
+
+impl ConnectorIntegration<PaymentMethodToken, PaymentMethodTokenizationData, PaymentsResponseData>
+    for Tesouro
+{
+    // Not Implemented (R)
+}
+
+impl<Flow, Request, Response> ConnectorCommonExt<Flow, Request, Response> for Tesouro
+where
+    Self: ConnectorIntegration<Flow, Request, Response>,
+{
+    fn build_headers(
+        &self,
+        req: &RouterData<Flow, Request, Response>,
+        _connectors: &Connectors,
+    ) -> CustomResult<Vec<(String, masking::Maskable<String>)>, errors::ConnectorError> {
+        let mut header = vec![(
+            headers::CONTENT_TYPE.to_string(),
+            self.get_content_type().to_string().into(),
+        )];
+        let mut api_key = self.get_auth_header(&req.connector_auth_type)?;
+        header.append(&mut api_key);
+        Ok(header)
+    }
+}
+
+impl ConnectorCommon for Tesouro {
+    fn id(&self) -> &'static str {
+        "tesouro"
+    }
+
+    fn get_currency_unit(&self) -> api::CurrencyUnit {
+        api::CurrencyUnit::Base
+        //    TODO! Check connector documentation, on which unit they are processing the currency.
+        //    If the connector accepts amount in lower unit ( i.e cents for USD) then return api::CurrencyUnit::Minor,
+        //    if connector accepts amount in base unit (i.e dollars for USD) then return api::CurrencyUnit::Base
+    }
+
+    fn common_get_content_type(&self) -> &'static str {
+        "application/json"
+    }
+
+    fn base_url<'a>(&self, connectors: &'a Connectors) -> &'a str {
+        connectors.tesouro.base_url.as_ref()
+    }
+
+    fn get_auth_header(
+        &self,
+        auth_type: &ConnectorAuthType,
+    ) -> CustomResult<Vec<(String, masking::Maskable<String>)>, errors::ConnectorError> {
+        let auth = tesouro::TesouroAuthType::try_from(auth_type)
+            .change_context(errors::ConnectorError::FailedToObtainAuthType)?;
+        Ok(vec![(
+            headers::AUTHORIZATION.to_string(),
+            auth.api_key.expose().into_masked(),
+        )])
+    }
+
+    fn build_error_response(
+        &self,
+        res: Response,
+        event_builder: Option<&mut ConnectorEvent>,
+    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
+        let response: tesouro::TesouroErrorResponse = res
+            .response
+            .parse_struct("TesouroErrorResponse")
+            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
+
+        event_builder.map(|i| i.set_response_body(&response));
+        router_env::logger::info!(connector_response=?response);
+
+        Ok(ErrorResponse {
+            status_code: res.status_code,
+            code: response.code,
+            message: response.message,
+            reason: response.reason,
+            attempt_status: None,
+            connector_transaction_id: None,
+            network_advice_code: None,
+            network_decline_code: None,
+            network_error_message: None,
+            connector_metadata: None,
+        })
+    }
+}
+
+impl ConnectorValidation for Tesouro {
+    fn validate_mandate_payment(
+        &self,
+        _pm_type: Option<enums::PaymentMethodType>,
+        pm_data: PaymentMethodData,
+    ) -> CustomResult<(), errors::ConnectorError> {
+        match pm_data {
+            PaymentMethodData::Card(_) => Err(errors::ConnectorError::NotImplemented(
+                "validate_mandate_payment does not support cards".to_string(),
+            )
+            .into()),
+            _ => Ok(()),
+        }
+    }
+
+    fn validate_psync_reference_id(
+        &self,
+        _data: &PaymentsSyncData,
+        _is_three_ds: bool,
+        _status: enums::AttemptStatus,
+        _connector_meta_data: Option<common_utils::pii::SecretSerdeValue>,
+    ) -> CustomResult<(), errors::ConnectorError> {
+        Ok(())
+    }
+}
+
+impl ConnectorIntegration<Session, PaymentsSessionData, PaymentsResponseData> for Tesouro {
+    //TODO: implement sessions flow
+}
+
+impl ConnectorIntegration<AccessTokenAuth, AccessTokenRequestData, AccessToken> for Tesouro {}
+
+impl ConnectorIntegration<SetupMandate, SetupMandateRequestData, PaymentsResponseData> for Tesouro {}
+
+impl ConnectorIntegration<Authorize, PaymentsAuthorizeData, PaymentsResponseData> for Tesouro {
+    fn get_headers(
+        &self,
+        req: &PaymentsAuthorizeRouterData,
+        connectors: &Connectors,
+    ) -> CustomResult<Vec<(String, masking::Maskable<String>)>, errors::ConnectorError> {
+        self.build_headers(req, connectors)
+    }
+
+    fn get_content_type(&self) -> &'static str {
+        self.common_get_content_type()
+    }
+
+    fn get_url(
+        &self,
+        _req: &PaymentsAuthorizeRouterData,
+        _connectors: &Connectors,
+    ) -> CustomResult<String, errors::ConnectorError> {
+        Err(errors::ConnectorError::NotImplemented("get_url method".to_string()).into())
+    }
+
+    fn get_request_body(
+        &self,
+        req: &PaymentsAuthorizeRouterData,
+        _connectors: &Connectors,
+    ) -> CustomResult<RequestContent, errors::ConnectorError> {
+        let amount = utils::convert_amount(
+            self.amount_converter,
+            req.request.minor_amount,
+            req.request.currency,
+        )?;
+
+        let connector_router_data = tesouro::TesouroRouterData::from((amount, req));
+        let connector_req = tesouro::TesouroPaymentsRequest::try_from(&connector_router_data)?;
+        Ok(RequestContent::Json(Box::new(connector_req)))
+    }
+
+    fn build_request(
+        &self,
+        req: &PaymentsAuthorizeRouterData,
+        connectors: &Connectors,
+    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
+        Ok(Some(
+            RequestBuilder::new()
+                .method(Method::Post)
+                .url(&types::PaymentsAuthorizeType::get_url(
+                    self, req, connectors,
+                )?)
+                .attach_default_headers()
+                .headers(types::PaymentsAuthorizeType::get_headers(
+                    self, req, connectors,
+                )?)
+                .set_body(types::PaymentsAuthorizeType::get_request_body(
+                    self, req, connectors,
+                )?)
+                .build(),
+        ))
+    }
+
+    fn handle_response(
+        &self,
+        data: &PaymentsAuthorizeRouterData,
+        event_builder: Option<&mut ConnectorEvent>,
+        res: Response,
+    ) -> CustomResult<PaymentsAuthorizeRouterData, errors::ConnectorError> {
+        let response: tesouro::TesouroPaymentsResponse = res
+            .response
+            .parse_struct("Tesouro PaymentsAuthorizeResponse")
+            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
+        event_builder.map(|i| i.set_response_body(&response));
+        router_env::logger::info!(connector_response=?response);
+        RouterData::try_from(ResponseRouterData {
+            response,
+            data: data.clone(),
+            http_code: res.status_code,
+        })
+    }
+
+    fn get_error_response(
+        &self,
+        res: Response,
+        event_builder: Option<&mut ConnectorEvent>,
+    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
+        self.build_error_response(res, event_builder)
+    }
+}
+
+impl ConnectorIntegration<PSync, PaymentsSyncData, PaymentsResponseData> for Tesouro {
+    fn get_headers(
+        &self,
+        req: &PaymentsSyncRouterData,
+        connectors: &Connectors,
+    ) -> CustomResult<Vec<(String, masking::Maskable<String>)>, errors::ConnectorError> {
+        self.build_headers(req, connectors)
+    }
+
+    fn get_content_type(&self) -> &'static str {
+        self.common_get_content_type()
+    }
+
+    fn get_url(
+        &self,
+        _req: &PaymentsSyncRouterData,
+        _connectors: &Connectors,
+    ) -> CustomResult<String, errors::ConnectorError> {
+        Err(errors::ConnectorError::NotImplemented("get_url method".to_string()).into())
+    }
+
+    fn build_request(
+        &self,
+        req: &PaymentsSyncRouterData,
+        connectors: &Connectors,
+    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
+        Ok(Some(
+            RequestBuilder::new()
+                .method(Method::Get)
+                .url(&types::PaymentsSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
+                .headers(types::PaymentsSyncType::get_headers(self, req, connectors)?)
+                .build(),
+        ))
+    }
+
+    fn handle_response(
+        &self,
+        data: &PaymentsSyncRouterData,
+        event_builder: Option<&mut ConnectorEvent>,
+        res: Response,
+    ) -> CustomResult<PaymentsSyncRouterData, errors::ConnectorError> {
+        let response: tesouro::TesouroPaymentsResponse = res
+            .response
+            .parse_struct("tesouro PaymentsSyncResponse")
+            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
+        event_builder.map(|i| i.set_response_body(&response));
+        router_env::logger::info!(connector_response=?response);
+        RouterData::try_from(ResponseRouterData {
+            response,
+            data: data.clone(),
+            http_code: res.status_code,
+        })
+    }
+
+    fn get_error_response(
+        &self,
+        res: Response,
+        event_builder: Option<&mut ConnectorEvent>,
+    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
+        self.build_error_response(res, event_builder)
+    }
+}
+
+impl ConnectorIntegration<Capture, PaymentsCaptureData, PaymentsResponseData> for Tesouro {
+    fn get_headers(
+        &self,
+        req: &PaymentsCaptureRouterData,
+        connectors: &Connectors,
+    ) -> CustomResult<Vec<(String, masking::Maskable<String>)>, errors::ConnectorError> {
+        self.build_headers(req, connectors)
+    }
+
+    fn get_content_type(&self) -> &'static str {
+        self.common_get_content_type()
+    }
+
+    fn get_url(
+        &self,
+        _req: &PaymentsCaptureRouterData,
+        _connectors: &Connectors,
+    ) -> CustomResult<String, errors::ConnectorError> {
+        Err(errors::ConnectorError::NotImplemented("get_url method".to_string()).into())
+    }
+
+    fn get_request_body(
+        &self,
+        _req: &PaymentsCaptureRouterData,
+        _connectors: &Connectors,
+    ) -> CustomResult<RequestContent, errors::ConnectorError> {
+        Err(errors::ConnectorError::NotImplemented("get_request_body method".to_string()).into())
+    }
+
+    fn build_request(
+        &self,
+        req: &PaymentsCaptureRouterData,
+        connectors: &Connectors,
+    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
+        Ok(Some(
+            RequestBuilder::new()
+                .method(Method::Post)
+                .url(&types::PaymentsCaptureType::get_url(self, req, connectors)?)
+                .attach_default_headers()
+                .headers(types::PaymentsCaptureType::get_headers(
+                    self, req, connectors,
+                )?)
+                .set_body(types::PaymentsCaptureType::get_request_body(
+                    self, req, connectors,
+                )?)
+                .build(),
+        ))
+    }
+
+    fn handle_response(
+        &self,
+        data: &PaymentsCaptureRouterData,
+        event_builder: Option<&mut ConnectorEvent>,
+        res: Response,
+    ) -> CustomResult<PaymentsCaptureRouterData, errors::ConnectorError> {
+        let response: tesouro::TesouroPaymentsResponse = res
+            .response
+            .parse_struct("Tesouro PaymentsCaptureResponse")
+            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
+        event_builder.map(|i| i.set_response_body(&response));
+        router_env::logger::info!(connector_response=?response);
+        RouterData::try_from(ResponseRouterData {
+            response,
+            data: data.clone(),
+            http_code: res.status_code,
+        })
+    }
+
+    fn get_error_response(
+        &self,
+        res: Response,
+        event_builder: Option<&mut ConnectorEvent>,
+    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
+        self.build_error_response(res, event_builder)
+    }
+}
+
+impl ConnectorIntegration<Void, PaymentsCancelData, PaymentsResponseData> for Tesouro {}
+
+impl ConnectorIntegration<Execute, RefundsData, RefundsResponseData> for Tesouro {
+    fn get_headers(
+        &self,
+        req: &RefundsRouterData<Execute>,
+        connectors: &Connectors,
+    ) -> CustomResult<Vec<(String, masking::Maskable<String>)>, errors::ConnectorError> {
+        self.build_headers(req, connectors)
+    }
+
+    fn get_content_type(&self) -> &'static str {
+        self.common_get_content_type()
+    }
+
+    fn get_url(
+        &self,
+        _req: &RefundsRouterData<Execute>,
+        _connectors: &Connectors,
+    ) -> CustomResult<String, errors::ConnectorError> {
+        Err(errors::ConnectorError::NotImplemented("get_url method".to_string()).into())
+    }
+
+    fn get_request_body(
+        &self,
+        req: &RefundsRouterData<Execute>,
+        _connectors: &Connectors,
+    ) -> CustomResult<RequestContent, errors::ConnectorError> {
+        let refund_amount = utils::convert_amount(
+            self.amount_converter,
+            req.request.minor_refund_amount,
+            req.request.currency,
+        )?;
+
+        let connector_router_data = tesouro::TesouroRouterData::from((refund_amount, req));
+        let connector_req = tesouro::TesouroRefundRequest::try_from(&connector_router_data)?;
+        Ok(RequestContent::Json(Box::new(connector_req)))
+    }
+
+    fn build_request(
+        &self,
+        req: &RefundsRouterData<Execute>,
+        connectors: &Connectors,
+    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
+        let request = RequestBuilder::new()
+            .method(Method::Post)
+            .url(&types::RefundExecuteType::get_url(self, req, connectors)?)
+            .attach_default_headers()
+            .headers(types::RefundExecuteType::get_headers(
+                self, req, connectors,
+            )?)
+            .set_body(types::RefundExecuteType::get_request_body(
+                self, req, connectors,
+            )?)
+            .build();
+        Ok(Some(request))
+    }
+
+    fn handle_response(
+        &self,
+        data: &RefundsRouterData<Execute>,
+        event_builder: Option<&mut ConnectorEvent>,
+        res: Response,
+    ) -> CustomResult<RefundsRouterData<Execute>, errors::ConnectorError> {
+        let response: tesouro::RefundResponse = res
+            .response
+            .parse_struct("tesouro RefundResponse")
+            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
+        event_builder.map(|i| i.set_response_body(&response));
+        router_env::logger::info!(connector_response=?response);
+        RouterData::try_from(ResponseRouterData {
+            response,
+            data: data.clone(),
+            http_code: res.status_code,
+        })
+    }
+
+    fn get_error_response(
+        &self,
+        res: Response,
+        event_builder: Option<&mut ConnectorEvent>,
+    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
+        self.build_error_response(res, event_builder)
+    }
+}
+
+impl ConnectorIntegration<RSync, RefundsData, RefundsResponseData> for Tesouro {
+    fn get_headers(
+        &self,
+        req: &RefundSyncRouterData,
+        connectors: &Connectors,
+    ) -> CustomResult<Vec<(String, masking::Maskable<String>)>, errors::ConnectorError> {
+        self.build_headers(req, connectors)
+    }
+
+    fn get_content_type(&self) -> &'static str {
+        self.common_get_content_type()
+    }
+
+    fn get_url(
+        &self,
+        _req: &RefundSyncRouterData,
+        _connectors: &Connectors,
+    ) -> CustomResult<String, errors::ConnectorError> {
+        Err(errors::ConnectorError::NotImplemented("get_url method".to_string()).into())
+    }
+
+    fn build_request(
+        &self,
+        req: &RefundSyncRouterData,
+        connectors: &Connectors,
+    ) -> CustomResult<Option<Request>, errors::ConnectorError> {
+        Ok(Some(
+            RequestBuilder::new()
+                .method(Method::Get)
+                .url(&types::RefundSyncType::get_url(self, req, connectors)?)
+                .attach_default_headers()
+                .headers(types::RefundSyncType::get_headers(self, req, connectors)?)
+                .set_body(types::RefundSyncType::get_request_body(
+                    self, req, connectors,
+                )?)
+                .build(),
+        ))
+    }
+
+    fn handle_response(
+        &self,
+        data: &RefundSyncRouterData,
+        event_builder: Option<&mut ConnectorEvent>,
+        res: Response,
+    ) -> CustomResult<RefundSyncRouterData, errors::ConnectorError> {
+        let response: tesouro::RefundResponse = res
+            .response
+            .parse_struct("tesouro RefundSyncResponse")
+            .change_context(errors::ConnectorError::ResponseDeserializationFailed)?;
+        event_builder.map(|i| i.set_response_body(&response));
+        router_env::logger::info!(connector_response=?response);
+        RouterData::try_from(ResponseRouterData {
+            response,
+            data: data.clone(),
+            http_code: res.status_code,
+        })
+    }
+
+    fn get_error_response(
+        &self,
+        res: Response,
+        event_builder: Option<&mut ConnectorEvent>,
+    ) -> CustomResult<ErrorResponse, errors::ConnectorError> {
+        self.build_error_response(res, event_builder)
+    }
+}
+
+#[async_trait::async_trait]
+impl webhooks::IncomingWebhook for Tesouro {
+    fn get_webhook_object_reference_id(
+        &self,
+        _request: &webhooks::IncomingWebhookRequestDetails<'_>,
+    ) -> CustomResult<api_models::webhooks::ObjectReferenceId, errors::ConnectorError> {
+        Err(report!(errors::ConnectorError::WebhooksNotImplemented))
+    }
+
+    fn get_webhook_event_type(
+        &self,
+        _request: &webhooks::IncomingWebhookRequestDetails<'_>,
+    ) -> CustomResult<api_models::webhooks::IncomingWebhookEvent, errors::ConnectorError> {
+        Err(report!(errors::ConnectorError::WebhooksNotImplemented))
+    }
+
+    fn get_webhook_resource_object(
+        &self,
+        _request: &webhooks::IncomingWebhookRequestDetails<'_>,
+    ) -> CustomResult<Box<dyn masking::ErasedMaskSerialize>, errors::ConnectorError> {
+        Err(report!(errors::ConnectorError::WebhooksNotImplemented))
+    }
+}
+
+static TESOURO_SUPPORTED_PAYMENT_METHODS: LazyLock<SupportedPaymentMethods> =
+    LazyLock::new(SupportedPaymentMethods::new);
+
+static TESOURO_CONNECTOR_INFO: ConnectorInfo = ConnectorInfo {
+    display_name: "Tesouro",
+    description: "Tesouro connects software companies and banks in one unified ecosystem, simplifying payments",
+    connector_type: enums::HyperswitchConnectorCategory::PaymentGateway,
+    integration_status: enums::ConnectorIntegrationStatus::Sandbox,
+};
+
+static TESOURO_SUPPORTED_WEBHOOK_FLOWS: [enums::EventClass; 0] = [];
+
+impl ConnectorSpecifications for Tesouro {
+    fn get_connector_about(&self) -> Option<&'static ConnectorInfo> {
+        Some(&TESOURO_CONNECTOR_INFO)
+    }
+
+    fn get_supported_payment_methods(&self) -> Option<&'static SupportedPaymentMethods> {
+        Some(&*TESOURO_SUPPORTED_PAYMENT_METHODS)
+    }
+
+    fn get_supported_webhook_flows(&self) -> Option<&'static [enums::EventClass]> {
+        Some(&TESOURO_SUPPORTED_WEBHOOK_FLOWS)
+    }
+}
diff --git a/crates/hyperswitch_connectors/src/connectors/tesouro/transformers.rs b/crates/hyperswitch_connectors/src/connectors/tesouro/transformers.rs
new file mode 100644
index 00000000000..89ca59873ee
--- /dev/null
+++ b/crates/hyperswitch_connectors/src/connectors/tesouro/transformers.rs
@@ -0,0 +1,219 @@
+use common_enums::enums;
+use common_utils::types::FloatMajorUnit;
+use hyperswitch_domain_models::{
+    payment_method_data::PaymentMethodData,
+    router_data::{ConnectorAuthType, RouterData},
+    router_flow_types::refunds::{Execute, RSync},
+    router_request_types::ResponseId,
+    router_response_types::{PaymentsResponseData, RefundsResponseData},
+    types::{PaymentsAuthorizeRouterData, RefundsRouterData},
+};
+use hyperswitch_interfaces::errors;
+use masking::Secret;
+use serde::{Deserialize, Serialize};
+
+use crate::types::{RefundsResponseRouterData, ResponseRouterData};
+
+//TODO: Fill the struct with respective fields
+pub struct TesouroRouterData<T> {
+    pub amount: FloatMajorUnit, // The type of amount that a connector accepts, for example, String, i64, f64, etc.
+    pub router_data: T,
+}
+
+impl<T> From<(FloatMajorUnit, T)> for TesouroRouterData<T> {
+    fn from((amount, item): (FloatMajorUnit, T)) -> Self {
+        //Todo :  use utils to convert the amount to the type of amount that a connector accepts
+        Self {
+            amount,
+            router_data: item,
+        }
+    }
+}
+
+//TODO: Fill the struct with respective fields
+#[derive(Default, Debug, Serialize, PartialEq)]
+pub struct TesouroPaymentsRequest {
+    amount: FloatMajorUnit,
+    card: TesouroCard,
+}
+
+#[derive(Default, Debug, Serialize, Eq, PartialEq)]
+pub struct TesouroCard {
+    number: cards::CardNumber,
+    expiry_month: Secret<String>,
+    expiry_year: Secret<String>,
+    cvc: Secret<String>,
+    complete: bool,
+}
+
+impl TryFrom<&TesouroRouterData<&PaymentsAuthorizeRouterData>> for TesouroPaymentsRequest {
+    type Error = error_stack::Report<errors::ConnectorError>;
+    fn try_from(
+        item: &TesouroRouterData<&PaymentsAuthorizeRouterData>,
+    ) -> Result<Self, Self::Error> {
+        match item.router_data.request.payment_method_data.clone() {
+            PaymentMethodData::Card(_) => Err(errors::ConnectorError::NotImplemented(
+                "Card payment method not implemented".to_string(),
+            )
+            .into()),
+            _ => Err(errors::ConnectorError::NotImplemented("Payment method".to_string()).into()),
+        }
+    }
+}
+
+//TODO: Fill the struct with respective fields
+// Auth Struct
+pub struct TesouroAuthType {
+    pub(super) api_key: Secret<String>,
+}
+
+impl TryFrom<&ConnectorAuthType> for TesouroAuthType {
+    type Error = error_stack::Report<errors::ConnectorError>;
+    fn try_from(auth_type: &ConnectorAuthType) -> Result<Self, Self::Error> {
+        match auth_type {
+            ConnectorAuthType::HeaderKey { api_key } => Ok(Self {
+                api_key: api_key.to_owned(),
+            }),
+            _ => Err(errors::ConnectorError::FailedToObtainAuthType.into()),
+        }
+    }
+}
+// PaymentsResponse
+//TODO: Append the remaining status flags
+#[derive(Debug, Clone, Copy, Default, Serialize, Deserialize, PartialEq)]
+#[serde(rename_all = "lowercase")]
+pub enum TesouroPaymentStatus {
+    Succeeded,
+    Failed,
+    #[default]
+    Processing,
+}
+
+impl From<TesouroPaymentStatus> for common_enums::AttemptStatus {
+    fn from(item: TesouroPaymentStatus) -> Self {
+        match item {
+            TesouroPaymentStatus::Succeeded => Self::Charged,
+            TesouroPaymentStatus::Failed => Self::Failure,
+            TesouroPaymentStatus::Processing => Self::Authorizing,
+        }
+    }
+}
+
+//TODO: Fill the struct with respective fields
+#[derive(Default, Debug, Clone, Serialize, Deserialize, PartialEq)]
+pub struct TesouroPaymentsResponse {
+    status: TesouroPaymentStatus,
+    id: String,
+}
+
+impl<F, T> TryFrom<ResponseRouterData<F, TesouroPaymentsResponse, T, PaymentsResponseData>>
+    for RouterData<F, T, PaymentsResponseData>
+{
+    type Error = error_stack::Report<errors::ConnectorError>;
+    fn try_from(
+        item: ResponseRouterData<F, TesouroPaymentsResponse, T, PaymentsResponseData>,
+    ) -> Result<Self, Self::Error> {
+        Ok(Self {
+            status: common_enums::AttemptStatus::from(item.response.status),
+            response: Ok(PaymentsResponseData::TransactionResponse {
+                resource_id: ResponseId::ConnectorTransactionId(item.response.id),
+                redirection_data: Box::new(None),
+                mandate_reference: Box::new(None),
+                connector_metadata: None,
+                network_txn_id: None,
+                connector_response_reference_id: None,
+                incremental_authorization_allowed: None,
+                charges: None,
+            }),
+            ..item.data
+        })
+    }
+}
+
+//TODO: Fill the struct with respective fields
+// REFUND :
+// Type definition for RefundRequest
+#[derive(Default, Debug, Serialize)]
+pub struct TesouroRefundRequest {
+    pub amount: FloatMajorUnit,
+}
+
+impl<F> TryFrom<&TesouroRouterData<&RefundsRouterData<F>>> for TesouroRefundRequest {
+    type Error = error_stack::Report<errors::ConnectorError>;
+    fn try_from(item: &TesouroRouterData<&RefundsRouterData<F>>) -> Result<Self, Self::Error> {
+        Ok(Self {
+            amount: item.amount.to_owned(),
+        })
+    }
+}
+
+// Type definition for Refund Response
+
+#[allow(dead_code)]
+#[derive(Debug, Copy, Serialize, Default, Deserialize, Clone)]
+pub enum RefundStatus {
+    Succeeded,
+    Failed,
+    #[default]
+    Processing,
+}
+
+impl From<RefundStatus> for enums::RefundStatus {
+    fn from(item: RefundStatus) -> Self {
+        match item {
+            RefundStatus::Succeeded => Self::Success,
+            RefundStatus::Failed => Self::Failure,
+            RefundStatus::Processing => Self::Pending,
+            //TODO: Review mapping
+        }
+    }
+}
+
+//TODO: Fill the struct with respective fields
+#[derive(Default, Debug, Clone, Serialize, Deserialize)]
+pub struct RefundResponse {
+    id: String,
+    status: RefundStatus,
+}
+
+impl TryFrom<RefundsResponseRouterData<Execute, RefundResponse>> for RefundsRouterData<Execute> {
+    type Error = error_stack::Report<errors::ConnectorError>;
+    fn try_from(
+        item: RefundsResponseRouterData<Execute, RefundResponse>,
+    ) -> Result<Self, Self::Error> {
+        Ok(Self {
+            response: Ok(RefundsResponseData {
+                connector_refund_id: item.response.id.to_string(),
+                refund_status: enums::RefundStatus::from(item.response.status),
+            }),
+            ..item.data
+        })
+    }
+}
+
+impl TryFrom<RefundsResponseRouterData<RSync, RefundResponse>> for RefundsRouterData<RSync> {
+    type Error = error_stack::Report<errors::ConnectorError>;
+    fn try_from(
+        item: RefundsResponseRouterData<RSync, RefundResponse>,
+    ) -> Result<Self, Self::Error> {
+        Ok(Self {
+            response: Ok(RefundsResponseData {
+                connector_refund_id: item.response.id.to_string(),
+                refund_status: enums::RefundStatus::from(item.response.status),
+            }),
+            ..item.data
+        })
+    }
+}
+
+//TODO: Fill the struct with respective fields
+#[derive(Default, Debug, Serialize, Deserialize, PartialEq)]
+pub struct TesouroErrorResponse {
+    pub status_code: u16,
+    pub code: String,
+    pub message: String,
+    pub reason: Option<String>,
+    pub network_advice_code: Option<String>,
+    pub network_decline_code: Option<String>,
+    pub network_error_message: Option<String>,
+}
diff --git a/crates/hyperswitch_connectors/src/default_implementations.rs b/crates/hyperswitch_connectors/src/default_implementations.rs
index 2d7e5e34746..f035b90a820 100644
--- a/crates/hyperswitch_connectors/src/default_implementations.rs
+++ b/crates/hyperswitch_connectors/src/default_implementations.rs
@@ -275,6 +275,7 @@ default_imp_for_authorize_session_token!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::UnifiedAuthenticationService,
     connectors::Volt,
     connectors::Threedsecureio,
@@ -420,6 +421,7 @@ default_imp_for_calculate_tax!(
     connectors::Square,
     connectors::Stripe,
     connectors::Stripebilling,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -527,6 +529,7 @@ default_imp_for_session_update!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Mifinity,
     connectors::Mollie,
     connectors::Moneris,
@@ -672,6 +675,7 @@ default_imp_for_post_session_tokens!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Mifinity,
     connectors::Mollie,
     connectors::Moneris,
@@ -814,6 +818,7 @@ default_imp_for_create_order!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Mifinity,
     connectors::Mollie,
     connectors::Moneris,
@@ -960,6 +965,7 @@ default_imp_for_update_metadata!(
     connectors::Stax,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Mifinity,
     connectors::Mollie,
     connectors::Moneris,
@@ -1106,6 +1112,7 @@ default_imp_for_cancel_post_capture!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Mifinity,
     connectors::Mollie,
     connectors::Moneris,
@@ -1268,6 +1275,7 @@ default_imp_for_complete_authorize!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -1410,6 +1418,7 @@ default_imp_for_incremental_authorization!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -1548,6 +1557,7 @@ default_imp_for_create_customer!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -1679,6 +1689,7 @@ default_imp_for_connector_redirect_response!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -1818,6 +1829,7 @@ default_imp_for_pre_authenticate_steps!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -1962,6 +1974,7 @@ default_imp_for_authenticate_steps!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -2106,6 +2119,7 @@ default_imp_for_post_authenticate_steps!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -2239,6 +2253,7 @@ default_imp_for_pre_processing_steps!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -2382,6 +2397,7 @@ default_imp_for_post_processing_steps!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -2529,6 +2545,7 @@ default_imp_for_approve!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -2676,6 +2693,7 @@ default_imp_for_reject!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -2822,6 +2840,7 @@ default_imp_for_webhook_source_verification!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -2968,6 +2987,7 @@ default_imp_for_accept_dispute!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -3111,6 +3131,7 @@ default_imp_for_submit_evidence!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -3255,6 +3276,7 @@ default_imp_for_defend_dispute!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -3402,6 +3424,7 @@ default_imp_for_fetch_disputes!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -3548,6 +3571,7 @@ default_imp_for_dispute_sync!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -3700,6 +3724,7 @@ default_imp_for_file_upload!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -3831,6 +3856,7 @@ default_imp_for_payouts!(
     connectors::Stax,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Tokenex,
     connectors::Tokenio,
@@ -3973,6 +3999,7 @@ default_imp_for_payouts_create!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -4119,6 +4146,7 @@ default_imp_for_payouts_retrieve!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -4264,6 +4292,7 @@ default_imp_for_payouts_eligibility!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -4404,6 +4433,7 @@ default_imp_for_payouts_fulfill!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -4548,6 +4578,7 @@ default_imp_for_payouts_cancel!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -4694,6 +4725,7 @@ default_imp_for_payouts_quote!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -4839,6 +4871,7 @@ default_imp_for_payouts_recipient!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -4985,6 +5018,7 @@ default_imp_for_payouts_recipient_account!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -5132,6 +5166,7 @@ default_imp_for_frm_sale!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -5279,6 +5314,7 @@ default_imp_for_frm_checkout!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -5426,6 +5462,7 @@ default_imp_for_frm_transaction!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -5573,6 +5610,7 @@ default_imp_for_frm_fulfillment!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -5720,6 +5758,7 @@ default_imp_for_frm_record_return!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -5863,6 +5902,7 @@ default_imp_for_revoking_mandates!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -6008,6 +6048,7 @@ default_imp_for_uas_pre_authentication!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -6152,6 +6193,7 @@ default_imp_for_uas_post_authentication!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -6297,6 +6339,7 @@ default_imp_for_uas_authentication_confirmation!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -6433,6 +6476,7 @@ default_imp_for_connector_request_id!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -6572,6 +6616,7 @@ default_imp_for_fraud_check!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -6741,6 +6786,7 @@ default_imp_for_connector_authentication!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Thunes,
     connectors::Tokenex,
     connectors::Tokenio,
@@ -6884,6 +6930,7 @@ default_imp_for_uas_authentication!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -7022,6 +7069,7 @@ default_imp_for_revenue_recovery!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -7191,6 +7239,7 @@ default_imp_for_subscriptions!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -7338,6 +7387,7 @@ default_imp_for_billing_connector_payment_sync!(
     connectors::Stax,
     connectors::Square,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -7484,6 +7534,7 @@ default_imp_for_revenue_recovery_record_back!(
     connectors::Stax,
     connectors::Square,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -7632,6 +7683,7 @@ default_imp_for_billing_connector_invoice_sync!(
     connectors::Stripebilling,
     connectors::Threedsecureio,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Thunes,
     connectors::Tokenex,
     connectors::Tokenio,
@@ -7771,6 +7823,7 @@ default_imp_for_external_vault!(
     connectors::Stripebilling,
     connectors::Square,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenio,
@@ -7916,6 +7969,7 @@ default_imp_for_external_vault_insert!(
     connectors::Stripebilling,
     connectors::Square,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenio,
@@ -8059,6 +8113,7 @@ default_imp_for_gift_card_balance_check!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -8206,6 +8261,7 @@ default_imp_for_external_vault_retrieve!(
     connectors::Stripebilling,
     connectors::Square,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenio,
@@ -8351,6 +8407,7 @@ default_imp_for_external_vault_delete!(
     connectors::Stripebilling,
     connectors::Square,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -8497,6 +8554,7 @@ default_imp_for_external_vault_create!(
     connectors::Stripebilling,
     connectors::Square,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -8643,6 +8701,7 @@ default_imp_for_connector_authentication_token!(
     connectors::Stripebilling,
     connectors::Square,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -8788,6 +8847,7 @@ default_imp_for_external_vault_proxy_payments_create!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
diff --git a/crates/hyperswitch_connectors/src/default_implementations_v2.rs b/crates/hyperswitch_connectors/src/default_implementations_v2.rs
index 621e41dcb93..570977048f8 100644
--- a/crates/hyperswitch_connectors/src/default_implementations_v2.rs
+++ b/crates/hyperswitch_connectors/src/default_implementations_v2.rs
@@ -377,6 +377,7 @@ default_imp_for_new_connector_integration_payment!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -524,6 +525,7 @@ default_imp_for_new_connector_integration_refund!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -660,6 +662,7 @@ default_imp_for_new_connector_integration_connector_authentication_token!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -801,6 +804,7 @@ default_imp_for_new_connector_integration_connector_access_token!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -948,6 +952,7 @@ default_imp_for_new_connector_integration_accept_dispute!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -1095,6 +1100,7 @@ default_imp_for_new_connector_integration_fetch_disputes!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -1243,6 +1249,7 @@ default_imp_for_new_connector_integration_dispute_sync!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -1391,6 +1398,7 @@ default_imp_for_new_connector_integration_defend_dispute!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -1537,6 +1545,7 @@ default_imp_for_new_connector_integration_submit_evidence!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -1694,6 +1703,7 @@ default_imp_for_new_connector_integration_file_upload!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -1843,6 +1853,7 @@ default_imp_for_new_connector_integration_payouts_create!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -1992,6 +2003,7 @@ default_imp_for_new_connector_integration_payouts_eligibility!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -2141,6 +2153,7 @@ default_imp_for_new_connector_integration_payouts_fulfill!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -2290,6 +2303,7 @@ default_imp_for_new_connector_integration_payouts_cancel!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -2439,6 +2453,7 @@ default_imp_for_new_connector_integration_payouts_quote!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -2588,6 +2603,7 @@ default_imp_for_new_connector_integration_payouts_recipient!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -2737,6 +2753,7 @@ default_imp_for_new_connector_integration_payouts_sync!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -2886,6 +2903,7 @@ default_imp_for_new_connector_integration_payouts_recipient_account!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -3033,6 +3051,7 @@ default_imp_for_new_connector_integration_webhook_source_verification!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -3182,6 +3201,7 @@ default_imp_for_new_connector_integration_frm_sale!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -3331,6 +3351,7 @@ default_imp_for_new_connector_integration_frm_checkout!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -3480,6 +3501,7 @@ default_imp_for_new_connector_integration_frm_transaction!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -3629,6 +3651,7 @@ default_imp_for_new_connector_integration_frm_fulfillment!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -3778,6 +3801,7 @@ default_imp_for_new_connector_integration_frm_record_return!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -3923,6 +3947,7 @@ default_imp_for_new_connector_integration_revoking_mandates!(
     connectors::Square,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -4038,6 +4063,7 @@ default_imp_for_new_connector_integration_frm!(
     connectors::Stripe,
     connectors::Square,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -4182,6 +4208,7 @@ default_imp_for_new_connector_integration_connector_authentication!(
     connectors::Stripe,
     connectors::Square,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -4318,6 +4345,7 @@ default_imp_for_new_connector_integration_revenue_recovery!(
     connectors::Stripe,
     connectors::Square,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -4490,6 +4518,7 @@ default_imp_for_new_connector_integration_external_vault!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
@@ -4636,6 +4665,7 @@ default_imp_for_new_connector_integration_external_vault_proxy!(
     connectors::Stripe,
     connectors::Stripebilling,
     connectors::Taxjar,
+    connectors::Tesouro,
     connectors::Threedsecureio,
     connectors::Thunes,
     connectors::Tokenex,
diff --git a/crates/hyperswitch_domain_models/src/connector_endpoints.rs b/crates/hyperswitch_domain_models/src/connector_endpoints.rs
index cca03101902..7f1657c0a35 100644
--- a/crates/hyperswitch_domain_models/src/connector_endpoints.rs
+++ b/crates/hyperswitch_domain_models/src/connector_endpoints.rs
@@ -125,6 +125,7 @@ pub struct Connectors {
     pub stripe: ConnectorParamsWithFileUploadUrl,
     pub stripebilling: ConnectorParams,
     pub taxjar: ConnectorParams,
+    pub tesouro: ConnectorParams,
     pub threedsecureio: ConnectorParams,
     pub thunes: ConnectorParams,
     pub tokenex: ConnectorParams,
diff --git a/crates/router/src/connector.rs b/crates/router/src/connector.rs
index 895d9ae1a2e..3bed6948c39 100644
--- a/crates/router/src/connector.rs
+++ b/crates/router/src/connector.rs
@@ -40,10 +40,10 @@ pub use hyperswitch_connectors::connectors::{
     redsys::Redsys, riskified, riskified::Riskified, santander, santander::Santander, shift4,
     shift4::Shift4, sift, sift::Sift, signifyd, signifyd::Signifyd, silverflow,
     silverflow::Silverflow, square, square::Square, stax, stax::Stax, stripe, stripe::Stripe,
-    stripebilling, stripebilling::Stripebilling, taxjar, taxjar::Taxjar, threedsecureio,
-    threedsecureio::Threedsecureio, thunes, thunes::Thunes, tokenex, tokenex::Tokenex, tokenio,
-    tokenio::Tokenio, trustpay, trustpay::Trustpay, trustpayments, trustpayments::Trustpayments,
-    tsys, tsys::Tsys, unified_authentication_service,
+    stripebilling, stripebilling::Stripebilling, taxjar, taxjar::Taxjar, tesouro, tesouro::Tesouro,
+    threedsecureio, threedsecureio::Threedsecureio, thunes, thunes::Thunes, tokenex,
+    tokenex::Tokenex, tokenio, tokenio::Tokenio, trustpay, trustpay::Trustpay, trustpayments,
+    trustpayments::Trustpayments, tsys, tsys::Tsys, unified_authentication_service,
     unified_authentication_service::UnifiedAuthenticationService, vgs, vgs::Vgs, volt, volt::Volt,
     wellsfargo, wellsfargo::Wellsfargo, wellsfargopayout, wellsfargopayout::Wellsfargopayout, wise,
     wise::Wise, worldline, worldline::Worldline, worldpay, worldpay::Worldpay, worldpayvantiv,
diff --git a/crates/router/tests/connectors/main.rs b/crates/router/tests/connectors/main.rs
index fbabe1155f4..6f671a243e1 100644
--- a/crates/router/tests/connectors/main.rs
+++ b/crates/router/tests/connectors/main.rs
@@ -111,6 +111,7 @@ mod stax;
 mod stripe;
 mod stripebilling;
 mod taxjar;
+mod tesouro;
 mod tokenex;
 mod tokenio;
 mod trustpay;
diff --git a/crates/router/tests/connectors/sample_auth.toml b/crates/router/tests/connectors/sample_auth.toml
index 5b79c5ef2e7..f48e67aff87 100644
--- a/crates/router/tests/connectors/sample_auth.toml
+++ b/crates/router/tests/connectors/sample_auth.toml
@@ -369,4 +369,8 @@ api_key="EOrder Token"
 
 [peachpayments]
 api_key="API Key"
-key1="Tenant ID"
\ No newline at end of file
+key1="Tenant ID"
+
+[tesouro]
+api_key="Client ID"
+key1="Client Secret"
\ No newline at end of file
diff --git a/crates/router/tests/connectors/tesouro.rs b/crates/router/tests/connectors/tesouro.rs
new file mode 100644
index 00000000000..44e74552fa1
--- /dev/null
+++ b/crates/router/tests/connectors/tesouro.rs
@@ -0,0 +1,421 @@
+use hyperswitch_domain_models::payment_method_data::{Card, PaymentMethodData};
+use masking::Secret;
+use router::types::{self, api, storage::enums};
+use test_utils::connector_auth;
+
+use crate::utils::{self, ConnectorActions};
+
+#[derive(Clone, Copy)]
+struct TesouroTest;
+impl ConnectorActions for TesouroTest {}
+impl utils::Connector for TesouroTest {
+    fn get_data(&self) -> api::ConnectorData {
+        use router::connector::Tesouro;
+        utils::construct_connector_data_old(
+            Box::new(Tesouro::new()),
+            types::Connector::Plaid,
+            api::GetToken::Connector,
+            None,
+        )
+    }
+
+    fn get_auth_token(&self) -> types::ConnectorAuthType {
+        utils::to_connector_auth_type(
+            connector_auth::ConnectorAuthentication::new()
+                .tesouro
+                .expect("Missing connector authentication configuration")
+                .into(),
+        )
+    }
+
+    fn get_name(&self) -> String {
+        "tesouro".to_string()
+    }
+}
+
+static CONNECTOR: TesouroTest = TesouroTest {};
+
+fn get_default_payment_info() -> Option<utils::PaymentInfo> {
+    None
+}
+
+fn payment_method_details() -> Option<types::PaymentsAuthorizeData> {
+    None
+}
+
+// Cards Positive Tests
+// Creates a payment using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_only_authorize_payment() {
+    let response = CONNECTOR
+        .authorize_payment(payment_method_details(), get_default_payment_info())
+        .await
+        .expect("Authorize payment response");
+    assert_eq!(response.status, enums::AttemptStatus::Authorized);
+}
+
+// Captures a payment using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_capture_authorized_payment() {
+    let response = CONNECTOR
+        .authorize_and_capture_payment(payment_method_details(), None, get_default_payment_info())
+        .await
+        .expect("Capture payment response");
+    assert_eq!(response.status, enums::AttemptStatus::Charged);
+}
+
+// Partially captures a payment using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_partially_capture_authorized_payment() {
+    let response = CONNECTOR
+        .authorize_and_capture_payment(
+            payment_method_details(),
+            Some(types::PaymentsCaptureData {
+                amount_to_capture: 50,
+                ..utils::PaymentCaptureType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .expect("Capture payment response");
+    assert_eq!(response.status, enums::AttemptStatus::Charged);
+}
+
+// Synchronizes a payment using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_sync_authorized_payment() {
+    let authorize_response = CONNECTOR
+        .authorize_payment(payment_method_details(), get_default_payment_info())
+        .await
+        .expect("Authorize payment response");
+    let txn_id = utils::get_connector_transaction_id(authorize_response.response);
+    let response = CONNECTOR
+        .psync_retry_till_status_matches(
+            enums::AttemptStatus::Authorized,
+            Some(types::PaymentsSyncData {
+                connector_transaction_id: types::ResponseId::ConnectorTransactionId(
+                    txn_id.unwrap(),
+                ),
+                ..Default::default()
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .expect("PSync response");
+    assert_eq!(response.status, enums::AttemptStatus::Authorized,);
+}
+
+// Voids a payment using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_void_authorized_payment() {
+    let response = CONNECTOR
+        .authorize_and_void_payment(
+            payment_method_details(),
+            Some(types::PaymentsCancelData {
+                connector_transaction_id: String::from(""),
+                cancellation_reason: Some("requested_by_customer".to_string()),
+                ..Default::default()
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .expect("Void payment response");
+    assert_eq!(response.status, enums::AttemptStatus::Voided);
+}
+
+// Refunds a payment using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_refund_manually_captured_payment() {
+    let response = CONNECTOR
+        .capture_payment_and_refund(
+            payment_method_details(),
+            None,
+            None,
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap().refund_status,
+        enums::RefundStatus::Success,
+    );
+}
+
+// Partially refunds a payment using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_partially_refund_manually_captured_payment() {
+    let response = CONNECTOR
+        .capture_payment_and_refund(
+            payment_method_details(),
+            None,
+            Some(types::RefundsData {
+                refund_amount: 50,
+                ..utils::PaymentRefundType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap().refund_status,
+        enums::RefundStatus::Success,
+    );
+}
+
+// Synchronizes a refund using the manual capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_sync_manually_captured_refund() {
+    let refund_response = CONNECTOR
+        .capture_payment_and_refund(
+            payment_method_details(),
+            None,
+            None,
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    let response = CONNECTOR
+        .rsync_retry_till_status_matches(
+            enums::RefundStatus::Success,
+            refund_response.response.unwrap().connector_refund_id,
+            None,
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap().refund_status,
+        enums::RefundStatus::Success,
+    );
+}
+
+// Creates a payment using the automatic capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_make_payment() {
+    let authorize_response = CONNECTOR
+        .make_payment(payment_method_details(), get_default_payment_info())
+        .await
+        .unwrap();
+    assert_eq!(authorize_response.status, enums::AttemptStatus::Charged);
+}
+
+// Synchronizes a payment using the automatic capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_sync_auto_captured_payment() {
+    let authorize_response = CONNECTOR
+        .make_payment(payment_method_details(), get_default_payment_info())
+        .await
+        .unwrap();
+    assert_eq!(authorize_response.status, enums::AttemptStatus::Charged);
+    let txn_id = utils::get_connector_transaction_id(authorize_response.response);
+    assert_ne!(txn_id, None, "Empty connector transaction id");
+    let response = CONNECTOR
+        .psync_retry_till_status_matches(
+            enums::AttemptStatus::Charged,
+            Some(types::PaymentsSyncData {
+                connector_transaction_id: types::ResponseId::ConnectorTransactionId(
+                    txn_id.unwrap(),
+                ),
+                capture_method: Some(enums::CaptureMethod::Automatic),
+                ..Default::default()
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(response.status, enums::AttemptStatus::Charged,);
+}
+
+// Refunds a payment using the automatic capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_refund_auto_captured_payment() {
+    let response = CONNECTOR
+        .make_payment_and_refund(payment_method_details(), None, get_default_payment_info())
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap().refund_status,
+        enums::RefundStatus::Success,
+    );
+}
+
+// Partially refunds a payment using the automatic capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_partially_refund_succeeded_payment() {
+    let refund_response = CONNECTOR
+        .make_payment_and_refund(
+            payment_method_details(),
+            Some(types::RefundsData {
+                refund_amount: 50,
+                ..utils::PaymentRefundType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        refund_response.response.unwrap().refund_status,
+        enums::RefundStatus::Success,
+    );
+}
+
+// Creates multiple refunds against a payment using the automatic capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_refund_succeeded_payment_multiple_times() {
+    CONNECTOR
+        .make_payment_and_multiple_refund(
+            payment_method_details(),
+            Some(types::RefundsData {
+                refund_amount: 50,
+                ..utils::PaymentRefundType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await;
+}
+
+// Synchronizes a refund using the automatic capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_sync_refund() {
+    let refund_response = CONNECTOR
+        .make_payment_and_refund(payment_method_details(), None, get_default_payment_info())
+        .await
+        .unwrap();
+    let response = CONNECTOR
+        .rsync_retry_till_status_matches(
+            enums::RefundStatus::Success,
+            refund_response.response.unwrap().connector_refund_id,
+            None,
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap().refund_status,
+        enums::RefundStatus::Success,
+    );
+}
+
+// Cards Negative scenarios
+// Creates a payment with incorrect CVC.
+#[actix_web::test]
+async fn should_fail_payment_for_incorrect_cvc() {
+    let response = CONNECTOR
+        .make_payment(
+            Some(types::PaymentsAuthorizeData {
+                payment_method_data: PaymentMethodData::Card(Card {
+                    card_cvc: Secret::new("12345".to_string()),
+                    ..utils::CCardType::default().0
+                }),
+                ..utils::PaymentAuthorizeType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap_err().message,
+        "Your card's security code is invalid.".to_string(),
+    );
+}
+
+// Creates a payment with incorrect expiry month.
+#[actix_web::test]
+async fn should_fail_payment_for_invalid_exp_month() {
+    let response = CONNECTOR
+        .make_payment(
+            Some(types::PaymentsAuthorizeData {
+                payment_method_data: PaymentMethodData::Card(Card {
+                    card_exp_month: Secret::new("20".to_string()),
+                    ..utils::CCardType::default().0
+                }),
+                ..utils::PaymentAuthorizeType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap_err().message,
+        "Your card's expiration month is invalid.".to_string(),
+    );
+}
+
+// Creates a payment with incorrect expiry year.
+#[actix_web::test]
+async fn should_fail_payment_for_incorrect_expiry_year() {
+    let response = CONNECTOR
+        .make_payment(
+            Some(types::PaymentsAuthorizeData {
+                payment_method_data: PaymentMethodData::Card(Card {
+                    card_exp_year: Secret::new("2000".to_string()),
+                    ..utils::CCardType::default().0
+                }),
+                ..utils::PaymentAuthorizeType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap_err().message,
+        "Your card's expiration year is invalid.".to_string(),
+    );
+}
+
+// Voids a payment using automatic capture flow (Non 3DS).
+#[actix_web::test]
+async fn should_fail_void_payment_for_auto_capture() {
+    let authorize_response = CONNECTOR
+        .make_payment(payment_method_details(), get_default_payment_info())
+        .await
+        .unwrap();
+    assert_eq!(authorize_response.status, enums::AttemptStatus::Charged);
+    let txn_id = utils::get_connector_transaction_id(authorize_response.response);
+    assert_ne!(txn_id, None, "Empty connector transaction id");
+    let void_response = CONNECTOR
+        .void_payment(txn_id.unwrap(), None, get_default_payment_info())
+        .await
+        .unwrap();
+    assert_eq!(
+        void_response.response.unwrap_err().message,
+        "You cannot cancel this PaymentIntent because it has a status of succeeded."
+    );
+}
+
+// Captures a payment using invalid connector payment id.
+#[actix_web::test]
+async fn should_fail_capture_for_invalid_payment() {
+    let capture_response = CONNECTOR
+        .capture_payment("123456789".to_string(), None, get_default_payment_info())
+        .await
+        .unwrap();
+    assert_eq!(
+        capture_response.response.unwrap_err().message,
+        String::from("No such payment_intent: '123456789'")
+    );
+}
+
+// Refunds a payment with refund amount higher than payment amount.
+#[actix_web::test]
+async fn should_fail_for_refund_amount_higher_than_payment_amount() {
+    let response = CONNECTOR
+        .make_payment_and_refund(
+            payment_method_details(),
+            Some(types::RefundsData {
+                refund_amount: 150,
+                ..utils::PaymentRefundType::default().0
+            }),
+            get_default_payment_info(),
+        )
+        .await
+        .unwrap();
+    assert_eq!(
+        response.response.unwrap_err().message,
+        "Refund amount (₹1.50) is greater than charge amount (₹1.00)",
+    );
+}
+
+// Connector dependent test cases goes here
+
+// [#478]: add unit tests for non 3DS, wallets & webhooks in connector tests
diff --git a/crates/test_utils/src/connector_auth.rs b/crates/test_utils/src/connector_auth.rs
index 1208173abd1..c51c415321d 100644
--- a/crates/test_utils/src/connector_auth.rs
+++ b/crates/test_utils/src/connector_auth.rs
@@ -119,6 +119,7 @@ pub struct ConnectorAuthentication {
     pub stripe: Option<HeaderKey>,
     pub stripebilling: Option<HeaderKey>,
     pub taxjar: Option<HeaderKey>,
+    pub tesouro: Option<HeaderKey>,
     pub threedsecureio: Option<HeaderKey>,
     pub thunes: Option<HeaderKey>,
     pub tokenex: Option<BodyKey>,
diff --git a/loadtest/config/development.toml b/loadtest/config/development.toml
index 5818cee9519..d15eea9da40 100644
--- a/loadtest/config/development.toml
+++ b/loadtest/config/development.toml
@@ -197,6 +197,7 @@ stax.base_url = "https://apiprod.fattlabs.com/"
 stripe.base_url = "https://api.stripe.com/"
 stripebilling.base_url = "https://api.stripe.com/"
 taxjar.base_url = "https://api.sandbox.taxjar.com/v2/"
+tesouro.base_url = "https://api.sandbox.tesouro.com"
 threedsecureio.base_url = "https://service.sandbox.3dsecure.io"
 thunes.base_url = "https://api.limonetikqualif.com/"
 tokenex.base_url = "https://test-api.tokenex.com"
diff --git a/scripts/add_connector.sh b/scripts/add_connector.sh
index 22573052f11..25dce6cd58b 100755
--- a/scripts/add_connector.sh
+++ b/scripts/add_connector.sh
@@ -6,7 +6,7 @@ function find_prev_connector() {
     git checkout $self
     cp $self $self.tmp
     # Add new connector to existing list and sort it
-    connectors=(aci adyen adyenplatform affirm airwallex amazonpay applepay archipel authipay authorizedotnet bambora bamboraapac bankofamerica barclaycard billwerk bitpay blackhawknetwork bluecode bluesnap boku braintree breadpay cashtocode celero chargebee checkbook checkout coinbase cryptopay ctp_visa custombilling cybersource datatrans deutschebank digitalvirgo dlocal dummyconnector dwolla ebanx elavon facilitapay fiserv fiservemea fiuu flexiti forte getnet gigadat globalpay globepay gocardless gpayments helcim hipay hyperswitch_vault hyperwallet hyperwallet iatapay inespay itaubank jpmorgan juspaythreedsserver katapult klarna mifinity mollie moneris mpgs multisafepay netcetera nexinets nexixpay nomupay noon nordea novalnet nuvei opayo opennode paybox payeezy payload payme payone paypal paysafe paystack paytm payu peachpayments phonepe placetopay plaid powertranz prophetpay rapyd razorpay recurly redsys santander shift4 sift silverflow square stax stripe stripebilling taxjar threedsecureio thunes tokenex tokenio trustpay trustpayments tsys unified_authentication_service vgs volt wellsfargo wellsfargopayout wise worldline worldpay worldpayvantiv worldpayxml xendit zsl "$1")
+    connectors=(aci adyen adyenplatform affirm airwallex amazonpay applepay archipel authipay authorizedotnet bambora bamboraapac bankofamerica barclaycard billwerk bitpay blackhawknetwork bluecode bluesnap boku braintree breadpay cashtocode celero chargebee checkbook checkout coinbase cryptopay ctp_visa custombilling cybersource datatrans deutschebank digitalvirgo dlocal dummyconnector dwolla ebanx elavon facilitapay fiserv fiservemea fiuu flexiti forte getnet gigadat globalpay globepay gocardless gpayments helcim hipay hyperswitch_vault hyperwallet hyperwallet iatapay inespay itaubank jpmorgan juspaythreedsserver katapult klarna mifinity mollie moneris mpgs multisafepay netcetera nexinets nexixpay nomupay noon nordea novalnet nuvei opayo opennode paybox payeezy payload payme payone paypal paysafe paystack paytm payu peachpayments phonepe placetopay plaid powertranz prophetpay rapyd razorpay recurly redsys santander shift4 sift silverflow square stax stripe stripebilling taxjar tesouro threedsecureio thunes tokenex tokenio trustpay trustpayments tsys unified_authentication_service vgs volt wellsfargo wellsfargopayout wise worldline worldpay worldpayvantiv worldpayxml xendit zsl "$1")
 
 
     IFS=$'\n' sorted=($(sort <<<"${connectors[*]}")); unset IFS