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Page Title: Get started | 🦜️🔗 Langchain Paragraphs: Skip to main content🦜️🔗 LangChainDocsUse casesAPILangSmithPython DocsCTRLKGet startedIntroductionInstallationQuickstartModulesModel I/​OData connectionChainsMemoryAgentsCallbacksModulesGuidesEcosystemAdditional resourcesCommunity navigatorAPI referenceGet startedGet startedGet started with LangChain📄️ Introduction📄️ Installation📄️ QuickstartInstallationNextIntroductionCommunityDiscordTwitterGitHubPythonJS/TSMoreHomepageBlogCopyright © 2023 LangChain, Inc. Skip to main content 🦜️🔗 LangChainDocsUse casesAPILangSmithPython DocsCTRLK 🦜️🔗 LangChainDocsUse casesAPI LangSmithPython DocsCTRLK CTRLK Get startedIntroductionInstallationQuickstartModulesModel I/​OData connectionChainsMemoryAgentsCallbacksModulesGuidesEcosystemAdditional resourcesCommunity navigatorAPI referenceGet startedGet startedGet started with LangChain📄️ Introduction📄️ Installation📄️ QuickstartInstallationNextIntroduction Get startedIntroductionInstallationQuickstartModulesModel I/​OData connectionChainsMemoryAgentsCallbacksModulesGuidesEcosystemAdditional resourcesCommunity navigatorAPI reference Get started Modules Model I/​O Data connection Chains Memory Agents Callbacks Guides Ecosystem Additional resources API reference Get startedGet startedGet started with LangChain📄️ Introduction📄️ Installation📄️ QuickstartInstallationNextIntroduction Get started with LangChain Installation Next Introduction CommunityDiscordTwitterGitHubPythonJS/TSMoreHomepageBlogCopyright © 2023 LangChain, Inc. CommunityDiscordTwitterGitHubPythonJS/TSMoreHomepageBlog CommunityDiscordTwitter Community GitHubPythonJS/TS GitHub MoreHomepageBlog More
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Community GitHubPythonJS/TS GitHub MoreHomepageBlog More Copyright © 2023 LangChain, Inc. Page Title: 🦜️🔗 Langchain Paragraphs: Paragraphs: Page Title: Introduction | 🦜️🔗 Langchain Paragraphs: Skip to main content🦜️🔗 LangChainDocsUse casesAPILangSmithPython DocsCTRLKGet startedIntroductionInstallationQuickstartModulesModel I/​OData connectionChainsMemoryAgentsCallbacksModulesGuidesEcosystemAdditional resourcesCommunity navigatorAPI referenceGet startedIntroductionIntroductionLangChain is a framework for developing applications powered by language models. It enables applications that are:Data-aware: connect a language model to other sources of dataAgentic: allow a language model to interact with its environmentThe main value props of LangChain are:Components: abstractions for working with language models, along with a collection of implementations for each abstraction. Components are modular and easy-to-use, whether you are using the rest of the LangChain framework or notOff-the-shelf chains: a structured assembly of components for accomplishing specific higher-level tasksOff-the-shelf chains make it easy to get started. For more complex applications and nuanced use-cases, components make it easy to customize existing chains or build new ones.Get started​Here’s how to install LangChain, set up your environment, and start building.We recommend following our Quickstart guide to familiarize yourself with the framework by building your first LangChain application.Note: These docs are for the LangChain JS/TS package.
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For documentation on the Python version, head here.Modules​LangChain provides standard, extendable interfaces and external integrations for the following modules, listed from least to most complex:Model I/O​Interface with language modelsData connection​Interface with application-specific dataChains​Construct sequences of callsAgents​Let chains choose which tools to use given high-level directivesMemory​Persist application state between runs of a chainCallbacks​Log and stream intermediate steps of any chainExamples, ecosystem, and resources​Use cases​Walkthroughs and best-practices for common end-to-end use cases, like:ChatbotsAnswering questions using sourcesAnalyzing structured dataand much more...Additional resources​Our community is full of prolific developers, creative builders, and fantastic teachers. Check out the Gallery for a list of awesome LangChain projects, compiled by the folks at KyroLabs. Support Join us on GitHub or Discord to ask questions, share feedback, meet other developers building with LangChain, and dream about the future of LLM’s.PreviousGet startedNextInstallationCommunityDiscordTwitterGitHubPythonJS/TSMoreHomepageBlogCopyright © 2023 LangChain, Inc.
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Get startedIntroductionInstallationQuickstartModulesModel I/​OData connectionChainsMemoryAgentsCallbacksModulesGuidesEcosystemAdditional resourcesCommunity navigatorAPI referenceGet startedIntroductionIntroductionLangChain is a framework for developing applications powered by language models. It enables applications that are:Data-aware: connect a language model to other sources of dataAgentic: allow a language model to interact with its environmentThe main value props of LangChain are:Components: abstractions for working with language models, along with a collection of implementations for each abstraction. Components are modular and easy-to-use, whether you are using the rest of the LangChain framework or notOff-the-shelf chains: a structured assembly of components for accomplishing specific higher-level tasksOff-the-shelf chains make it easy to get started. For more complex applications and nuanced use-cases, components make it easy to customize existing chains or build new ones.Get started​Here’s how to install LangChain, set up your environment, and start building.We recommend following our Quickstart guide to familiarize yourself with the framework by building your first LangChain application.Note: These docs are for the LangChain JS/TS package.
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For documentation on the Python version, head here.Modules​LangChain provides standard, extendable interfaces and external integrations for the following modules, listed from least to most complex:Model I/O​Interface with language modelsData connection​Interface with application-specific dataChains​Construct sequences of callsAgents​Let chains choose which tools to use given high-level directivesMemory​Persist application state between runs of a chainCallbacks​Log and stream intermediate steps of any chainExamples, ecosystem, and resources​Use cases​Walkthroughs and best-practices for common end-to-end use cases, like:ChatbotsAnswering questions using sourcesAnalyzing structured dataand much more...Additional resources​Our community is full of prolific developers, creative builders, and fantastic teachers. Check out the Gallery for a list of awesome LangChain projects, compiled by the folks at KyroLabs. Support Join us on GitHub or Discord to ask questions, share feedback, meet other developers building with LangChain, and dream about the future of LLM’s.PreviousGet startedNextInstallation
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Get startedIntroductionIntroductionLangChain is a framework for developing applications powered by language models. It enables applications that are:Data-aware: connect a language model to other sources of dataAgentic: allow a language model to interact with its environmentThe main value props of LangChain are:Components: abstractions for working with language models, along with a collection of implementations for each abstraction. Components are modular and easy-to-use, whether you are using the rest of the LangChain framework or notOff-the-shelf chains: a structured assembly of components for accomplishing specific higher-level tasksOff-the-shelf chains make it easy to get started. For more complex applications and nuanced use-cases, components make it easy to customize existing chains or build new ones.Get started​Here’s how to install LangChain, set up your environment, and start building.We recommend following our Quickstart guide to familiarize yourself with the framework by building your first LangChain application.Note: These docs are for the LangChain JS/TS package.
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For documentation on the Python version, head here.Modules​LangChain provides standard, extendable interfaces and external integrations for the following modules, listed from least to most complex:Model I/O​Interface with language modelsData connection​Interface with application-specific dataChains​Construct sequences of callsAgents​Let chains choose which tools to use given high-level directivesMemory​Persist application state between runs of a chainCallbacks​Log and stream intermediate steps of any chainExamples, ecosystem, and resources​Use cases​Walkthroughs and best-practices for common end-to-end use cases, like:ChatbotsAnswering questions using sourcesAnalyzing structured dataand much more...Additional resources​Our community is full of prolific developers, creative builders, and fantastic teachers. Check out the Gallery for a list of awesome LangChain projects, compiled by the folks at KyroLabs. Support Join us on GitHub or Discord to ask questions, share feedback, meet other developers building with LangChain, and dream about the future of LLM’s.PreviousGet startedNextInstallation
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IntroductionLangChain is a framework for developing applications powered by language models. It enables applications that are:Data-aware: connect a language model to other sources of dataAgentic: allow a language model to interact with its environmentThe main value props of LangChain are:Components: abstractions for working with language models, along with a collection of implementations for each abstraction. Components are modular and easy-to-use, whether you are using the rest of the LangChain framework or notOff-the-shelf chains: a structured assembly of components for accomplishing specific higher-level tasksOff-the-shelf chains make it easy to get started. For more complex applications and nuanced use-cases, components make it easy to customize existing chains or build new ones.Get started​Here’s how to install LangChain, set up your environment, and start building.We recommend following our Quickstart guide to familiarize yourself with the framework by building your first LangChain application.Note: These docs are for the LangChain JS/TS package.
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For documentation on the Python version, head here.Modules​LangChain provides standard, extendable interfaces and external integrations for the following modules, listed from least to most complex:Model I/O​Interface with language modelsData connection​Interface with application-specific dataChains​Construct sequences of callsAgents​Let chains choose which tools to use given high-level directivesMemory​Persist application state between runs of a chainCallbacks​Log and stream intermediate steps of any chainExamples, ecosystem, and resources​Use cases​Walkthroughs and best-practices for common end-to-end use cases, like:ChatbotsAnswering questions using sourcesAnalyzing structured dataand much more...Additional resources​Our community is full of prolific developers, creative builders, and fantastic teachers. Check out the Gallery for a list of awesome LangChain projects, compiled by the folks at KyroLabs. Support Join us on GitHub or Discord to ask questions, share feedback, meet other developers building with LangChain, and dream about the future of LLM’s. LangChain is a framework for developing applications powered by language models. It enables applications that are: The main value props of LangChain are: Off-the-shelf chains make it easy to get started. For more complex applications and nuanced use-cases, components make it easy to customize existing chains or build new ones. Here’s how to install LangChain, set up your environment, and start building. We recommend following our Quickstart guide to familiarize yourself with the framework by building your first LangChain application. Note: These docs are for the LangChain JS/TS package. For documentation on the Python version, head here. LangChain provides standard, extendable interfaces and external integrations for the following modules, listed from least to most complex: Interface with language models Interface with application-specific data Construct sequences of calls Let chains choose which tools to use given high-level directives
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Construct sequences of calls Let chains choose which tools to use given high-level directives Persist application state between runs of a chain Log and stream intermediate steps of any chain Walkthroughs and best-practices for common end-to-end use cases, like: Our community is full of prolific developers, creative builders, and fantastic teachers. Check out the Gallery for a list of awesome LangChain projects, compiled by the folks at KyroLabs. Join us on GitHub or Discord to ask questions, share feedback, meet other developers building with LangChain, and dream about the future of LLM’s. Previous Page Title: Use cases | 🦜️🔗 Langchain Paragraphs:
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Page Title: Use cases | 🦜️🔗 Langchain Paragraphs: Skip to main content🦜️🔗 LangChainDocsUse casesAPILangSmithPython DocsCTRLKUse casesQA and Chat over DocumentsTabular Question AnsweringInteracting with APIsSummarizationAgent SimulationsAutonomous AgentsChatbotsExtractionUse casesUse casesWalkthroughs of common end-to-end use cases🗃️ QA and Chat over Documents2 items📄️ Tabular Question AnsweringLots of data and information is stored in tabular data, whether it be csvs, excel sheets, or SQL tables.📄️ Interacting with APIsLots of data and information is stored behind APIs.📄️ SummarizationA common use case is wanting to summarize long documents.🗃️ Agent Simulations1 items🗃️ Autonomous Agents2 items📄️ ChatbotsLanguage models are good at producing text, which makes them ideal for creating chatbots.📄️ ExtractionMost APIs and databases still deal with structured information. Therefore, in order to better work with those, it can be useful to extract structured information from text. Examples of this include:NextQA and Chat over DocumentsCommunityDiscordTwitterGitHubPythonJS/TSMoreHomepageBlogCopyright © 2023 LangChain, Inc.
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Use casesQA and Chat over DocumentsTabular Question AnsweringInteracting with APIsSummarizationAgent SimulationsAutonomous AgentsChatbotsExtractionUse casesUse casesWalkthroughs of common end-to-end use cases🗃️ QA and Chat over Documents2 items📄️ Tabular Question AnsweringLots of data and information is stored in tabular data, whether it be csvs, excel sheets, or SQL tables.📄️ Interacting with APIsLots of data and information is stored behind APIs.📄️ SummarizationA common use case is wanting to summarize long documents.🗃️ Agent Simulations1 items🗃️ Autonomous Agents2 items📄️ ChatbotsLanguage models are good at producing text, which makes them ideal for creating chatbots.📄️ ExtractionMost APIs and databases still deal with structured information. Therefore, in order to better work with those, it can be useful to extract structured information from text. Examples of this include:NextQA and Chat over Documents Use casesQA and Chat over DocumentsTabular Question AnsweringInteracting with APIsSummarizationAgent SimulationsAutonomous AgentsChatbotsExtraction Use cases QA and Chat over Documents Agent Simulations Autonomous Agents
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Use cases QA and Chat over Documents Agent Simulations Autonomous Agents Use casesUse casesWalkthroughs of common end-to-end use cases🗃️ QA and Chat over Documents2 items📄️ Tabular Question AnsweringLots of data and information is stored in tabular data, whether it be csvs, excel sheets, or SQL tables.📄️ Interacting with APIsLots of data and information is stored behind APIs.📄️ SummarizationA common use case is wanting to summarize long documents.🗃️ Agent Simulations1 items🗃️ Autonomous Agents2 items📄️ ChatbotsLanguage models are good at producing text, which makes them ideal for creating chatbots.📄️ ExtractionMost APIs and databases still deal with structured information. Therefore, in order to better work with those, it can be useful to extract structured information from text. Examples of this include:NextQA and Chat over Documents Walkthroughs of common end-to-end use cases 2 items Lots of data and information is stored in tabular data, whether it be csvs, excel sheets, or SQL tables. Lots of data and information is stored behind APIs. A common use case is wanting to summarize long documents. 1 items Language models are good at producing text, which makes them ideal for creating chatbots. Most APIs and databases still deal with structured information. Therefore, in order to better work with those, it can be useful to extract structured information from text. Examples of this include: Page Title: langchain | 🦜️🔗 Langchain Paragraphs:
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Skip to main content🦜️🔗 LangChainDocsUse casesAPILangSmithPython DocsCTRLKGet startedIntroductionInstallationQuickstartModulesModel I/​OData connectionChainsMemoryAgentsCallbacksModulesGuidesEcosystemAdditional resourcesCommunity navigatorAPI
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ionslangchain/​chains/​query_constructorlangchain/​chains/​query_constructor/​irlangchain/​chains/​sql_dblangchain/​chat_models/​anthropiclangchain/​chat_models/​baiduwenxinlangchain/​chat_models/​baselangchain/​chat_models/​googlepalmlangchain/​chat_models/​googlevertexailangchain/​chat_models/​ollamalangchain/​chat_models/​openailangchain/​documentlangchain/​document_loaders/​baselangchain/​docu
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​baselangchain/​document_loaders/​fs/​bufferlangchain/​document_loaders/​fs/​csvlangchain/​document_loaders/​fs/​directorylangchain/​document_loaders/​fs/​docxlangchain/​document_loaders/​fs/​epublangchain/​document_loaders/​fs/​jsonlangchain/​document_loaders/​fs/​notionlangchain/​document_loaders/​fs/​pdflangchain/​document_loaders/​fs/​srtlangchain/​document_loaders/​fs/​textlangchain/​document
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tlangchain/​document_loaders/​fs/​unstructuredlangchain/​document_loaders/​web/​apify_datasetlangchain/​document_loade
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rs/​web/​assemblyailangchain/​document_loaders/​web/​azure_blob_storage_containerlangchain/​document_loaders/​web/​azure_blob_storage_filelangchain/​document_loaders/​web/​cheeriolangchain/​document_loaders/​web/​college_confidentiallangchain/​document_loaders/​web/​confluencelangchain/​document_loaders/​web/​figmalangchain/​document_loaders/​web/​gitbooklangchain/​document_loaders/​web/​githubla
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aders/​web/​githublangchain/​document_loaders/​web/​hnlangchain/​document_loaders/​web/​imsdblangchain/​document_loaders/​web/​notionapilangchain/​document_loaders/​web/​notiondblangchain/​document_loaders/​web/​playwrightlangchain/​document_loaders/​web/​puppeteerlangchain/​document_loaders/​web/​s3langchain/​document_loaders/​web/​serpapilangchain/​document_loaders/​web/​sonix_audiolangchain/​do
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x_audiolangchain/​document_loaders/​web/​sort_xyz_blockchainlangchain/​document_loaders/​web/​youtubelangchain/​document_transformers/​html_to_textlangchain/​document_transformers/​mozilla_readabilitylangchain/​document_transformers/​openai_functionslangchain/​embeddings/​baselangchain/​embeddings/​cache_backedlangchain/​embeddings/​coherelangchain/​embeddings/​fakelangchain/​embeddings/​googlepal
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mbeddings/​googlepalmlangchain/​embeddings/​googlevertexailangchain/​embeddings/​hflangchain/​embeddings/​openailangchain/​embeddings/​tensorflowlangchain/​evaluationlangchain/​experimental/​autogptlangchain/​experimental/​babyagilangchain/​experimental/​generative_agentslangchain/​experimental/​multimodal_embeddings/​googlevertexailangchain/​experimental/​pl
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an_and_executelangchainlangchain/​llms/​ai21langchain/​llms/​aleph_alphalangchain/​llms/​baselangchain/​llms/​bedrocklangchain/​llms/​coherelangchain/​llms/​googlepalmlangchain/​llms/​googlevertexailangchain/​llms/​hflangchain/​llms/​loadlangchain/​llms/​ollamalangchain/​llms/​openailangchain/​llms/​raycastlangchain/​llms/​replicatelangchain/​llms/​sagemaker_endpointlangchain/​loadlangchain/​load
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​loadlangchain/​load/​serializablelangchain/​memorylangchain/​memory/​zeplangchain/​output_parserslangchain/​output_parsers/​expressionlangchain/​promptslangchain/​prompts/​loadlangchain/​retrievers/​amazon_kendralangchain/​retrievers/​contextual_compressionlangchain/​retrievers/​databerrylangchain/​retrievers/​document_compressorslangchain/​retrievers/​document_compressors/​chain_extractlangchain
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ain_extractlangchain/​retrievers/​hydelangchain/​retrievers/​metallangchain/​retrievers/​parent_documentlangchain/​retrievers/​remotelangchain/​retrievers/​self_querylangchain/​retrievers/​self_query/​chromalangchain/​retrievers/​self_query/​functionallangchain/​retrievers/​self_query/​pineconelangchain/​retrievers/​self_query/​supabaselangchain/​retrievers/​self_query/​weaviatelangchain/​retrieve
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elangchain/​retrievers/​supabaselangchain/​retrievers/​time_weightedlangchain/​retrievers/​vespalangchain/​retrievers/​zeplangchain/​schemalangchain/​schema/​output_parserlangchain/​schema/​query_constructorlangchain/​schema/​retrieverlangchain/​schema/​runnablelangchain/​schema/​storagelangchain/​sql_dblangchain/​storage/​in_memorylangchain/​storage/​ioredis
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langchain/​stores/​doc/​gcslangchain/​stores/​doc/​in_memorylangchain/​stores/​file/​in_memorylangchain/​stores/​file/​nodelangchain/​stores/​message/​dynamodblangchain/​stores/​message/​firestorelangchain/​stores/​message/​in_memorylangchain/​stores/​message/​ioredislangchain/​stores/​message/​momentolangchain/​stores/​message/​planetscalelangchain/​stores/​message/​redislangchain/​stores/​messa
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chain/​stores/​message/​upstash_redislangchain/​stores/​message/​xatalangchain/​text_splitterlangchain/​toolslangchain/​tools/​aws_lambdalangchain/​tools/​aws_sfnlangchain/​tools/​calculatorlangchain/​tools/​sqllangchain/​tools/​webbrowserlangchain/​util/​mathlangchain/​vectorstores/​analyticdblangchain/​vectorstores/​baselangchain/​vectorstores/​chromalangchain/​vectorstores/​elasticsearchlangcha
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elasticsearchlangchain/​vectorstores/​faisslangchain/​vectorstores/​hnswliblangchain/​vectorstores/​lancedblangchain/​vectorstores/​memorylangchain/​vectorstores/​milvuslangchain/​vectorstores/​mongolangchain/​vectorstores/​mongodb_atlaslangchain/​vectorstores/​myscalelangchain/​vectorstores/​opensearchlangchain/​vectorstores/​pineconelangchain/​vectorstores/​prismalangchain/​vectorstores/​qdrantl
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ectorstores/​qdrantlangchain/​vectorstores/​redislangchain/​vectorstores/​singlestorelangchain/​vectorstores/​supabaselangchain/​vectorstores/​tigrislangchain/​vectorstores/​typeormlangchain/​vectorstores/​typesenselangchain/​vectorstores/​usearchlangchain/​vectorstores/​vectaralangchain/​vectorstores/​weaviatelangchain/​vectorstores/​xatalangchain/​vectorsto
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res/​zepAPI referenceOn this pagelangchainIndex​Modules​agentsagents/loadagents/toolkitsagents/toolkits/aws_sfnagents/toolkits/sqlbase_languagecachecache/iorediscache/momentocache/rediscache/upstash_rediscallbackschainschains/loadchains/openai_functionschains/query_constructorchains/query_constructor/irchains/sql_dbchat_models/anthropicchat_models/baiduwenxinchat_models/basechat_models/googlepalmchat_models/googlevertexaichat_models/ollamachat_models/openaidocumentdocument_loaders/basedocument_loaders/fs/bufferdocument_loaders/fs/csvdocument_loaders/fs/directorydocument_loaders/fs/docxdocument_loaders/fs/epubdocument_loaders/fs/jsondocument_loaders/fs/notiondocument_loaders/fs/pdfdocument_loaders/fs/srtdocument_loaders/fs/textdocument_loaders/fs/unstructureddocument_loaders/web/apify_datasetdocument_loaders/web/assemblyaidocument_loaders/web/azure_blob_storage_containerdocument_loaders/web/azure_blob_storage_filedocument_loaders/web/cheeriodocument_loaders/web/college_confidentialdocument_loaders/web/confluencedocument_loaders/web/figmadocument_loaders/web/gitbookdocument_loaders/web/githubdocument_loaders/web/hndocument_loaders/web/imsdbdocument_loaders/web/notionapidocument_loaders/web/notiondbdocument_loaders/web/playwrightdocument_loaders/web/puppeteerdocument_loaders/web/s3document_loaders/web/serpapidocument_loaders/web/sonix_audiodocument_loaders/web/sort_xyz_blockchaindocument_loaders/web/youtubedocument_transformers/html_to_textdocument_transformers/mozilla_readabili
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tydocument_transformers/openai_functionsembeddings/baseembeddings/cache_backedembeddings/cohereembeddings/fakeembeddings/googlepalmembeddings/googlevertexaiembeddings/hfembeddings/openaiembeddings/tensorflowevaluationexperimental/autogptexperimental/babyagiexperimental/generative_agentsexperimental/multimodal_embeddings/googlevertexaiexperimental/plan_and_executellms/ai21llms/aleph_alphallms/basellms/bedrockllms/coherellms/googlepalmllms/googlevertexaillms/hfllms/loadllms/ollamallms/openaillms/raycastllms/replicatellms/sagemaker_endpointloadload/serializablememorymemory/zepoutput_parsersoutput_parsers/expressionpromptsprompts/loadretrievers/amazon_kendraretrievers/contextual_compressionretrievers/databerryretrievers/document_compressorsretrievers/document_compressors/chain_extractretrievers/hyderetrievers/metalretrievers/parent_documentretrievers/remoteretrievers/self_queryretrievers/self_query/chromaretrievers/self_query/functionalretrievers/self_query/pineconeretrievers/self_query/supabaseretrievers/self_query/weaviateretrievers/supabaseretrievers/time_weightedretrievers/vesparetrievers/zepschemaschema/output_parserschema/query_constructorschema/retrieverschema/runnableschema/storagesql_dbstorage/in_memorystorage/ioredisstores/doc/gcsstores/doc/in_memorystores/file/in_memorystores/file/nodestores/message/dynamodbstores/message/firestorestores/message/in_memorystores/message/ioredisstores/message/momentostores/message/planetscalestores/message/redisstores/message/upstash_red
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isstores/message/xatatext_splittertoolstools/aws_lambdatools/aws_sfntools/calculatortools/sqltools/webbrowserutil/mathvectorstores/analyticdbvectorstores/basevectorstores/chromavectorstores/elasticsearchvectorstores/faissvectorstores/hnswlibvectorstores/lancedbvectorstores/memoryvectorstores/milvusvectorstores/mongovectorstores/mongodb_atlasvectorstores/myscalevectorstores/opensearchvectorstores/pineconevectorstores/prismavectorstores/qdrantvectorstores/redisvectorstores/singlestorevectorstores/supabasevectorstores/tigrisvectorstores/typeormvectorstores/typesensevectorstores/usearchvectorstores/vectaravectorstores/weaviatevectorstores/xatavectorstores/zepPreviousCommunity navigatorNextlangchain/agentsIndexModulesCommunityDiscordTwitterGitHubPythonJS/TSMoreHomepageBlogCopyright © 2023 LangChain, Inc.
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Get startedIntroductionInstallationQuickstartModulesModel I/​OData connectionChainsMemoryAgentsCallbacksModulesGuidesEcosystemAdditional resourcesCommunity navigatorAPI
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referencelangchain/​agentslangchain/​agents/​loadlangchain/​agents/​toolkitslangchain/​agents/​toolkits/​aws_sfnlangchain/​agents/​toolkits/​sqllangchain/​base_languagelangchain/​cachelangchain/​cache/​ioredislangchain/​cache/​momentolangchain/​cache/​redislangchain/​cache/​upstash_redislangchain/​callbackslangchain/​chainslangchain/​chains/​loadlangchain/​chains/​openai_functionslangchain/​chain
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ionslangchain/​chains/​query_constructorlangchain/​chains/​query_constructor/​irlangchain/​chains/​sql_dblangchain/​chat_models/​anthropiclangchain/​chat_models/​baiduwenxinlangchain/​chat_models/​baselangchain/​chat_models/​googlepalmlangchain/​chat_models/​googlevertexailangchain/​chat_models/​ollamalangchain/​chat_models/​openailangchain/​documentlangchain/​document_loaders/​baselangchain/​docu
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​baselangchain/​document_loaders/​fs/​bufferlangchain/​document_loaders/​fs/​csvlangchain/​document_loaders/​fs/​directorylangchain/​document_loaders/​fs/​docxlangchain/​document_loaders/​fs/​epublangchain/​document_loaders/​fs/​jsonlangchain/​document_loaders/​fs/​notionlangchain/​document_loaders/​fs/​pdflangchain/​document_loaders/​fs/​srtlangchain/​document_loaders/​fs/​textlangchain/​document
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tlangchain/​document_loaders/​fs/​unstructuredlangchain/​document_loaders/​web/​apify_datasetlangchain/​document_loaders/​web/​assemblyailangchain/​document_loaders/​web/​azure_blob_storage_co
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ntainerlangchain/​document_loaders/​web/​azure_blob_storage_filelangchain/​document_loaders/​web/​cheeriolangchain/​document_loaders/​web/​college_confidentiallangchain/​document_loaders/​web/​confluencelangchain/​document_loaders/​web/​figmalangchain/​document_loaders/​web/​gitbooklangchain/​document_loaders/​web/​githublangchain/​document_loaders/​web/​hnlangchain/​document_loaders/​web/​imsdbl
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loaders/​web/​imsdblangchain/​document_loaders/​web/​notionapilangchain/​document_loaders/​web/​notiondblangchain/​document_loaders/​web/​playwrightlangchain/​document_loaders/​web/​puppeteerlangchain/​document_loaders/​web/​s3langchain/​document_loaders/​web/​serpapilangchain/​document_loaders/​web/​sonix_audiolangchain/​document_loaders/​web/​sort_xyz_blockchainlangchain/​document_loaders/​web/​
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ument_loaders/​web/​youtubelangchain/​document_transformers/​html_to_textlangchain/​document_transformers/​mozilla_readabilitylangchain/​document_transformers/​openai_functionslangchain/​embeddings/​baselangchain/​embeddings/​cache_backedlangchain/​embeddings/​coherelangchain/​embeddings/​fakelangchain/​embeddings/​googlepalmlangchain/​embeddings/​googlevertexailangchain/​embeddings/​hflangchain/​
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dings/​hflangchain/​embeddings/​openailangchain/​embeddings/​tensorflowlangchain/​evaluationlangchain/​experimental/​autogptlangchain/​experimental/​babyagilangchain/​experimental/​generative_agentslangchain/​experimental/​multimodal_embeddings/​googlevertexailangchain/​experimental/​plan_and_executelangchainlangchain/​llms/​ai21langchain/​llms/​aleph_alphala
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ngchain/​llms/​baselangchain/​llms/​bedrocklangchain/​llms/​coherelangchain/​llms/​googlepalmlangchain/​llms/​googlevertexailangchain/​llms/​hflangchain/​llms/​loadlangchain/​llms/​ollamalangchain/​llms/​openailangchain/​llms/​raycastlangchain/​llms/​replicatelangchain/​llms/​sagemaker_endpointlangchain/​loadlangchain/​load/​serializablelangchain/​memorylangchain/​memory/​zeplangchain/​output_par
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angchain/​output_parserslangchain/​output_parsers/​expressionlangchain/​promptslangchain/​prompts/​loadlangchain/​retrievers/​amazon_kendralangchain/​retrievers/​contextual_compressionlangchain/​retrievers/​databerrylangchain/​retrievers/​document_compressorslangchain/​retrievers/​document_compressors/​chain_extractlangchain/​retrievers/​hydelangchain/​retrievers/​metallangchain/​retrievers/​paren
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n/​retrievers/​parent_documentlangchain/​retrievers/​remotelangchain/​retrievers/​self_querylangchain/​retrievers/​self_query/​chromalangchain/​retrievers/​self_query/​functionallangchain/​retrievers/​self_query/​pineconelangchain/​retrievers/​self_query/​supabaselangchain/​retrievers/​self_query/​weaviatelangchain/​retrievers/​supabaselangchain/​retrievers/​time_weightedlangchain/​retrievers/​ves
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ain/​retrievers/​vespalangchain/​retrievers/​zeplangchain/​schemalangchain/​schema/​output_parserlangchain/​schema/​query_constructorlangchain/​schema/​retrieverlangchain/​schema/​runnablelangchain/​schema/​storagelangchain/​sql_dblangchain/​storage/​in_memorylangchain/​storage/​ioredislangchain/​stores/​doc/​gcslangchain/​stores/​doc/​in_memorylangchain/​sto
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res/​file/​in_memorylangchain/​stores/​file/​nodelangchain/​stores/​message/​dynamodblangchain/​stores/​message/​firestorelangchain/​stores/​message/​in_memorylangchain/​stores/​message/​ioredislangchain/​stores/​message/​momentolangchain/​stores/​message/​planetscalelangchain/​stores/​message/​redislangchain/​stores/​message/​upstash_redislangchain/​stores/​message/​xatalangchain/​text_splitterl
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hain/​text_splitterlangchain/​toolslangchain/​tools/​aws_lambdalangchain/​tools/​aws_sfnlangchain/​tools/​calculatorlangchain/​tools/​sqllangchain/​tools/​webbrowserlangchain/​util/​mathlangchain/​vectorstores/​analyticdblangchain/​vectorstores/​baselangchain/​vectorstores/​chromalangchain/​vectorstores/​elasticsearchlangchain/​vectorstores/​faisslangchain/​vectorstores/​hnswliblangchain/​vectorst
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singlestorelangchain/​vectorstores/​supabaselangchain/​vectorstores/​tigrislangchain/​vectorstores/​typeormlangchain/​vectorstores/​typesenselangchain/​vectorstores/​usearchlangchain/​vectorstores/​vectaralangchain/​vectorstores/​weaviatelangchain/​vectorstores/​xatalangchain/​vectorstores/​zepAPI
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referenceOn this pagelangchainIndex​Modules​agentsagents/loada
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gents/toolkitsagents/toolkits/aws_sfnagents/toolkits/sqlbase_languagecachecache/iorediscache/momentocache/rediscache/upstash_rediscallbackschainschains/loadchains/openai_functionschains/query_constructorchains/query_constructor/irchains/sql_dbchat_models/anthropicchat_models/baiduwenxinchat_models/basechat_models/googlepalmchat_models/googlevertexaichat_models/ollamachat_models/openaidocumentdocument_loaders/basedocument_loaders/fs/bufferdocument_loaders/fs/csvdocument_loaders/fs/directorydocument_loaders/fs/docxdocument_loaders/fs/epubdocument_loaders/fs/jsondocument_loaders/fs/notiondocument_loaders/fs/pdfdocument_loaders/fs/srtdocument_loaders/fs/textdocument_loaders/fs/unstructureddocument_loaders/web/apify_datasetdocument_loaders/web/assemblyaidocument_loaders/web/azure_blob_storage_containerdocument_loaders/web/azure_blob_storage_filedocument_loaders/web/cheeriodocument_loaders/web/college_confidentialdocument_loaders/web/confluencedocument_loaders/web/figmadocument_loaders/web/gitbookdocument_loaders/web/githubdocument_loaders/web/hndocument_loaders/web/imsdbdocument_loaders/web/notionapidocument_loaders/web/notiondbdocument_loaders/web/playwrightdocument_loaders/web/puppeteerdocument_loaders/web/s3document_loaders/web/serpapidocument_loaders/web/sonix_audiodocument_loaders/web/sort_xyz_blockchaindocument_loaders/web/youtubedocument_transformers/html_to_textdocument_transformers/mozilla_readabilitydocument_transformers/openai_functionsembeddings/baseembeddings/cache_ba
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ckedembeddings/cohereembeddings/fakeembeddings/googlepalmembeddings/googlevertexaiembeddings/hfembeddings/openaiembeddings/tensorflowevaluationexperimental/autogptexperimental/babyagiexperimental/generative_agentsexperimental/multimodal_embeddings/googlevertexaiexperimental/plan_and_executellms/ai21llms/aleph_alphallms/basellms/bedrockllms/coherellms/googlepalmllms/googlevertexaillms/hfllms/loadllms/ollamallms/openaillms/raycastllms/replicatellms/sagemaker_endpointloadload/serializablememorymemory/zepoutput_parsersoutput_parsers/expressionpromptsprompts/loadretrievers/amazon_kendraretrievers/contextual_compressionretrievers/databerryretrievers/document_compressorsretrievers/document_compressors/chain_extractretrievers/hyderetrievers/metalretrievers/parent_documentretrievers/remoteretrievers/self_queryretrievers/self_query/chromaretrievers/self_query/functionalretrievers/self_query/pineconeretrievers/self_query/supabaseretrievers/self_query/weaviateretrievers/supabaseretrievers/time_weightedretrievers/vesparetrievers/zepschemaschema/output_parserschema/query_constructorschema/retrieverschema/runnableschema/storagesql_dbstorage/in_memorystorage/ioredisstores/doc/gcsstores/doc/in_memorystores/file/in_memorystores/file/nodestores/message/dynamodbstores/message/firestorestores/message/in_memorystores/message/ioredisstores/message/momentostores/message/planetscalestores/message/redisstores/message/upstash_redisstores/message/xatatext_splittertoolstools/aws_lambdatools/aws_sfntools/
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calculatortools/sqltools/webbrowserutil/mathvectorstores/analyticdbvectorstores/basevectorstores/chromavectorstores/elasticsearchvectorstores/faissvectorstores/hnswlibvectorstores/lancedbvectorstores/memoryvectorstores/milvusvectorstores/mongovectorstores/mongodb_atlasvectorstores/myscalevectorstores/opensearchvectorstores/pineconevectorstores/prismavectorstores/qdrantvectorstores/redisvectorstores/singlestorevectorstores/supabasevectorstores/tigrisvectorstores/typeormvectorstores/typesensevectorstores/usearchvectorstores/vectaravectorstores/weaviatevectorstores/xatavectorstores/zepPreviousCommunity navigatorNextlangchain/agentsIndexModules
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Get startedIntroductionInstallationQuickstartModulesModel I/​OData connectionChainsMemoryAgentsCallbacksModulesGuidesEcosystemAdditional resourcesCommunity navigatorAPI
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referencelangchain/​agentslangchain/​agents/​loadlangchain/​agents/​toolkitslangchain/​agents/​toolkits/​aws_sfnlangchain/​agents/​toolkits/​sqllangchain/​base_languagelangchain/​cachelangchain/​cache/​ioredislangchain/​cache/​momentolangchain/​cache/​redislangchain/​cache/​upstash_redislangchain/​callbackslangchain/​chainslangchain/​chains/​loadlangchain/​chains/​openai_functionslangchain/​chain
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ionslangchain/​chains/​query_constructorlangchain/​chains/​query_constructor/​irlangchain/​chains/​sql_dblangchain/​chat_models/​anthropiclangchain/​chat_models/​baiduwenxinlangchain/​chat_models/​baselangchain/​chat_models/​googlepalmlangchain/​chat_models/​googlevertexailangchain/​chat_models/​ollamalangchain/​chat_models/​openailangchain/​documentlangchain/​document_loaders/​baselangchain/​docu
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​baselangchain/​document_loaders/​fs/​bufferlangchain/​document_loaders/​fs/​csvlangchain/​document_loaders/​fs/​directorylangchain/​document_loaders/​fs/​docxlangchain/​document_loaders/​fs/​epublangchain/​document_loaders/​fs/​jsonlangchain/​document_loaders/​fs/​notionlangchain/​document_loaders/​fs/​pdflangchain/​document_loaders/​fs/​srtlangchain/​document_loaders/​fs/​textlangchain/​document
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tlangchain/​document_loaders/​fs/​unstructuredlangchain/​document_loaders/​web/​apify_datasetlangchain/​document_loaders/​web/​assemblyailangchain/​document_loaders/​web/​azure_blob_storage_co
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ntainerlangchain/​document_loaders/​web/​azure_blob_storage_filelangchain/​document_loaders/​web/​cheeriolangchain/​document_loaders/​web/​college_confidentiallangchain/​document_loaders/​web/​confluencelangchain/​document_loaders/​web/​figmalangchain/​document_loaders/​web/​gitbooklangchain/​document_loaders/​web/​githublangchain/​document_loaders/​web/​hnlangchain/​document_loaders/​web/​imsdbl
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loaders/​web/​imsdblangchain/​document_loaders/​web/​notionapilangchain/​document_loaders/​web/​notiondblangchain/​document_loaders/​web/​playwrightlangchain/​document_loaders/​web/​puppeteerlangchain/​document_loaders/​web/​s3langchain/​document_loaders/​web/​serpapilangchain/​document_loaders/​web/​sonix_audiolangchain/​document_loaders/​web/​sort_xyz_blockchainlangchain/​document_loaders/​web/​
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ument_loaders/​web/​youtubelangchain/​document_transformers/​html_to_textlangchain/​document_transformers/​mozilla_readabilitylangchain/​document_transformers/​openai_functionslangchain/​embeddings/​baselangchain/​embeddings/​cache_backedlangchain/​embeddings/​coherelangchain/​embeddings/​fakelangchain/​embeddings/​googlepalmlangchain/​embeddings/​googlevertexailangchain/​embeddings/​hflangchain/​
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dings/​hflangchain/​embeddings/​openailangchain/​embeddings/​tensorflowlangchain/​evaluationlangchain/​experimental/​autogptlangchain/​experimental/​babyagilangchain/​experimental/​generative_agentslangchain/​experimental/​multimodal_embeddings/​googlevertexailangchain/​experimental/​plan_and_executelangchainlangchain/​llms/​ai21langchain/​llms/​aleph_alphala
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ngchain/​llms/​baselangchain/​llms/​bedrocklangchain/​llms/​coherelangchain/​llms/​googlepalmlangchain/​llms/​googlevertexailangchain/​llms/​hflangchain/​llms/​loadlangchain/​llms/​ollamalangchain/​llms/​openailangchain/​llms/​raycastlangchain/​llms/​replicatelangchain/​llms/​sagemaker_endpointlangchain/​loadlangchain/​load/​serializablelangchain/​memorylangchain/​memory/​zeplangchain/​output_par
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angchain/​output_parserslangchain/​output_parsers/​expressionlangchain/​promptslangchain/​prompts/​loadlangchain/​retrievers/​amazon_kendralangchain/​retrievers/​contextual_compressionlangchain/​retrievers/​databerrylangchain/​retrievers/​document_compressorslangchain/​retrievers/​document_compressors/​chain_extractlangchain/​retrievers/​hydelangchain/​retrievers/​metallangchain/​retrievers/​paren
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n/​retrievers/​parent_documentlangchain/​retrievers/​remotelangchain/​retrievers/​self_querylangchain/​retrievers/​self_query/​chromalangchain/​retrievers/​self_query/​functionallangchain/​retrievers/​self_query/​pineconelangchain/​retrievers/​self_query/​supabaselangchain/​retrievers/​self_query/​weaviatelangchain/​retrievers/​supabaselangchain/​retrievers/​time_weightedlangchain/​retrievers/​ves
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ain/​retrievers/​vespalangchain/​retrievers/​zeplangchain/​schemalangchain/​schema/​output_parserlangchain/​schema/​query_constructorlangchain/​schema/​retrieverlangchain/​schema/​runnablelangchain/​schema/​storagelangchain/​sql_dblangchain/​storage/​in_memorylangchain/​storage/​ioredislangchain/​stores/​doc/​gcslangchain/​stores/​doc/​in_memorylangchain/​sto
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res/​file/​in_memorylangchain/​stores/​file/​nodelangchain/​stores/​message/​dynamodblangchain/​stores/​message/​firestorelangchain/​stores/​message/​in_memorylangchain/​stores/​message/​ioredislangchain/​stores/​message/​momentolangchain/​stores/​message/​planetscalelangchain/​stores/​message/​redislangchain/​stores/​message/​upstash_redislangchain/​stores/​message/​xatalangchain/​text_splitterl
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hain/​text_splitterlangchain/​toolslangchain/​tools/​aws_lambdalangchain/​tools/​aws_sfnlangchain/​tools/​calculatorlangchain/​tools/​sqllangchain/​tools/​webbrowserlangchain/​util/​mathlangchain/​vectorstores/​analyticdblangchain/​vectorstores/​baselangchain/​vectorstores/​chromalangchain/​vectorstores/​elasticsearchlangchain/​vectorstores/​faisslangchain/​vectorstores/​hnswliblangchain/​vectorst
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blangchain/​vectorstores/​lancedblangchain/​vectorstores/​memorylangchain/​vectorstores/​milvuslangchain/​vectorstores/​mongolangchain/​vectorstores/​mongodb_atlaslangchain/​vectorstores/​myscalelangchain/​vectorstores/​opensearchlangchain/​vectorstores/​pineconelangchain/​vectorstores/​prismalangchain/​vectorstores/​qdrantlangchain/​vectorstores/​redislangchain/​vectorstores/​singlestorelangchain
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singlestorelangchain/​vectorstores/​supabaselangchain/​vectorstores/​tigrislangchain/​vectorstores/​typeormlangchain/​vectorstores/​typesenselangchain/​vectorstores/​usearchlangchain/​vectorstores/​vectaralangchain/​vectorstores/​weaviatelangchain/​vectorstores/​xatalangchain/​vectorstores/​zep
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langchain/​agents langchain/​agents/​load langchain/​agents/​toolkits langchain/​agents/​toolkits/​aws_sfn langchain/​agents/​toolkits/​sql langchain/​base_language langchain/​cache langchain/​cache/​ioredis langchain/​cache/​momento langchain/​cache/​redis langchain/​cache/​upstash_redis langchain/​callbacks langchain/​chains langchain/​chains/​load langchain/​chains/​openai_functions langchain/​chains/​query_constructor langchain/​chains/​query_constructor/​ir langchain/​chains/​sql_db langchain/​chat_models/​anthropic langchain/​chat_models/​baiduwenxin langchain/​chat_models/​base langchain/​chat_models/​googlepalm langchain/​chat_models/​googlevertexai langchain/​chat_models/​ollama langchain/​chat_models/​openai langchain/​document langchain/​document_loaders/​base langchain/​document_loaders/​fs/​buffer langchain/​document_loaders/​fs/​csv langchain/​document_loaders/​fs/​directory langchain/​document_loaders/​fs/​docx langchain/​document_loaders/​fs/​epub langchain/​document_loaders/​fs/​json langchain/​document_loaders/​fs/​notion langchain/​document_loaders/​fs/​pdf langchain/​document_loaders/​fs/​srt
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langchain/​document_loaders/​fs/​srt langchain/​document_loaders/​fs/​text langchain/​document_loaders/​fs/​unstructured langchain/​document_loaders/​web/​apify_dataset langchain/​document_loaders/​web/​assemblyai langchain/​document_loaders/​web/​azure_blob_storage_container langchain/​document_loaders/​web/​azure_blob_storage_file langchain/​document_loaders/​web/​cheerio langchain/​document_loaders/​web/​college_confidential langchain/​document_loaders/​web/​confluence langchain/​document_loaders/​web/​figma langchain/​document_loaders/​web/​gitbook langchain/​document_loaders/​web/​github langchain/​document_loaders/​web/​hn langchain/​document_loaders/​web/​imsdb langchain/​document_loaders/​web/​notionapi langchain/​document_loaders/​web/​notiondb langchain/​document_loaders/​web/​playwright langchain/​document_loaders/​web/​puppeteer langchain/​document_loaders/​web/​s3 langchain/​document_loaders/​web/​serpapi langchain/​document_loaders/​web/​sonix_audio langchain/​document_loaders/​web/​sort_xyz_blockchain langchain/​document_loaders/​web/​youtube langchain/​document_transformers/​html_to_text langchain/​document_transformers/​mozilla_readability
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langchain/​document_transformers/​mozilla_readability langchain/​document_transformers/​openai_functions langchain/​embeddings/​base langchain/​embeddings/​cache_backed langchain/​embeddings/​cohere langchain/​embeddings/​fake langchain/​embeddings/​googlepalm langchain/​embeddings/​googlevertexai langchain/​embeddings/​hf langchain/​embeddings/​openai langchain/​embeddings/​tensorflow langchain/​evaluation langchain/​experimental/​autogpt langchain/​experimental/​babyagi langchain/​experimental/​generative_agents langchain/​experimental/​multimodal_embeddings/​googlevertexai langchain/​experimental/​plan_and_execute langchain/​llms/​ai21 langchain/​llms/​aleph_alpha langchain/​llms/​base langchain/​llms/​bedrock langchain/​llms/​cohere langchain/​llms/​googlepalm langchain/​llms/​googlevertexai langchain/​llms/​hf langchain/​llms/​load langchain/​llms/​ollama langchain/​llms/​openai langchain/​llms/​raycast langchain/​llms/​replicate langchain/​llms/​sagemaker_endpoint langchain/​load langchain/​load/​serializable langchain/​memory langchain/​memory/​zep langchain/​output_parsers langchain/​output_parsers/​expression
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langchain/​output_parsers langchain/​output_parsers/​expression langchain/​prompts langchain/​prompts/​load langchain/​retrievers/​amazon_kendra langchain/​retrievers/​contextual_compression langchain/​retrievers/​databerry langchain/​retrievers/​document_compressors langchain/​retrievers/​document_compressors/​chain_extract langchain/​retrievers/​hyde langchain/​retrievers/​metal langchain/​retrievers/​parent_document langchain/​retrievers/​remote langchain/​retrievers/​self_query langchain/​retrievers/​self_query/​chroma langchain/​retrievers/​self_query/​functional langchain/​retrievers/​self_query/​pinecone langchain/​retrievers/​self_query/​supabase langchain/​retrievers/​self_query/​weaviate langchain/​retrievers/​supabase langchain/​retrievers/​time_weighted langchain/​retrievers/​vespa langchain/​retrievers/​zep langchain/​schema langchain/​schema/​output_parser langchain/​schema/​query_constructor langchain/​schema/​retriever langchain/​schema/​runnable langchain/​schema/​storage langchain/​sql_db langchain/​storage/​in_memory langchain/​storage/​ioredis langchain/​stores/​doc/​gcs
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langchain/​vectorstores/​zep API referenceOn this pagelangchainIndex​Modules​agentsagents/loadagents/toolkitsagents/toolkits/aws_sfnagents/toolkits/sqlbase_languagecachecache/iorediscache/momentocache/rediscache/upstash_rediscallbackschainschains/loadchains/openai_functionschains/query_constructorchains/query_constructor/irchains/sql_dbchat_models/anthropicchat_models/baiduwenxinchat_models/basechat_models/googlepalmchat_models/googlevertexaichat_models/ollamachat_models/openaidocumentdocument_loaders/basedocument_loaders/fs/bufferdocument_loaders/fs/csvdocument_loaders/fs/directorydocument_loaders/fs/docxdocument_loaders/fs/epubdocument_loaders/fs/jsondocument_loaders/fs/notiondocument_loaders/fs/pdfdocument_loaders/fs/srtdocument_loaders/fs/textdocument_loaders/fs/unstructureddocument_loaders/web/apify_datasetdocument_loaders/web/assemblyaidocument_loaders/web/azure_blob_storage_containerdocument_loaders/web/azure_blob_storage_filedocument_loaders/web/cheeriodocument_loaders/web/college_confidentialdocument_loaders/web/confluencedocument_loaders/web/figmadocument_loaders/web/gitbookdocument_loaders/web/githubdocument_loaders/web/hndocument_loaders/web/imsdbdocument_loaders/web/notionapidocument_loaders/web/notiondbdocument_loaders/web/playwrightdocument_loaders/web/puppeteerdocument_loaders/web/s3document_loaders/web/serpapidocument_loaders/web/sonix_audiodocument_loaders/web/sort_xyz_blockchaindocument_loaders/web/youtubedocument_transformers/html_to_textdocument_transformers/mozilla_readabilitydocume
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nt_transformers/openai_functionsembeddings/baseembeddings/cache_backedembeddings/cohereembeddings/fakeembeddings/googlepalmembeddings/googlevertexaiembeddings/hfembeddings/openaiembeddings/tensorflowevaluationexperimental/autogptexperimental/babyagiexperimental/generative_agentsexperimental/multimodal_embeddings/googlevertexaiexperimental/plan_and_executellms/ai21llms/aleph_alphallms/basellms/bedrockllms/coherellms/googlepalmllms/googlevertexaillms/hfllms/loadllms/ollamallms/openaillms/raycastllms/replicatellms/sagemaker_endpointloadload/serializablememorymemory/zepoutput_parsersoutput_parsers/expressionpromptsprompts/loadretrievers/amazon_kendraretrievers/contextual_compressionretrievers/databerryretrievers/document_compressorsretrievers/document_compressors/chain_extractretrievers/hyderetrievers/metalretrievers/parent_documentretrievers/remoteretrievers/self_queryretrievers/self_query/chromaretrievers/self_query/functionalretrievers/self_query/pineconeretrievers/self_query/supabaseretrievers/self_query/weaviateretrievers/supabaseretrievers/time_weightedretrievers/vesparetrievers/zepschemaschema/output_parserschema/query_constructorschema/retrieverschema/runnableschema/storagesql_dbstorage/in_memorystorage/ioredisstores/doc/gcsstores/doc/in_memorystores/file/in_memorystores/file/nodestores/message/dynamodbstores/message/firestorestores/message/in_memorystores/message/ioredisstores/message/momentostores/message/planetscalestores/message/redisstores/message/upstash_redisstores
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/message/xatatext_splittertoolstools/aws_lambdatools/aws_sfntools/calculatortools/sqltools/webbrowserutil/mathvectorstores/analyticdbvectorstores/basevectorstores/chromavectorstores/elasticsearchvectorstores/faissvectorstores/hnswlibvectorstores/lancedbvectorstores/memoryvectorstores/milvusvectorstores/mongovectorstores/mongodb_atlasvectorstores/myscalevectorstores/opensearchvectorstores/pineconevectorstores/prismavectorstores/qdrantvectorstores/redisvectorstores/singlestorevectorstores/supabasevectorstores/tigrisvectorstores/typeormvectorstores/typesensevectorstores/usearchvectorstores/vectaravectorstores/weaviatevectorstores/xatavectorstores/zepPreviousCommunity navigatorNextlangchain/agentsIndexModules
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API referenceOn this pagelangchainIndex​Modules​agentsagents/loadagents/toolkitsagents/toolkits/aws_sfnagents/toolkits/sqlbase_languagecachecache/iorediscache/momentocache/rediscache/upstash_rediscallbackschainschains/loadchains/openai_functionschains/query_constructorchains/query_constructor/irchains/sql_dbchat_models/anthropicchat_models/baiduwenxinchat_models/basechat_models/googlepalmchat_models/googlevertexaichat_models/ollamachat_models/openaidocumentdocument_loaders/basedocument_loaders/fs/bufferdocument_loaders/fs/csvdocument_loaders/fs/directorydocument_loaders/fs/docxdocument_loaders/fs/epubdocument_loaders/fs/jsondocument_loaders/fs/notiondocument_loaders/fs/pdfdocument_loaders/fs/srtdocument_loaders/fs/textdocument_loaders/fs/unstructureddocument_loaders/web/apify_datasetdocument_loaders/web/assemblyaidocument_loaders/web/azure_blob_storage_containerdocument_loaders/web/azure_blob_storage_filedocument_loaders/web/cheeriodocument_loaders/web/college_confidentialdocument_loaders/web/confluencedocument_loaders/web/figmadocument_loaders/web/gitbookdocument_loaders/web/githubdocument_loaders/web/hndocument_loaders/web/imsdbdocument_loaders/web/notionapidocument_loaders/web/notiondbdocument_loaders/web/playwrightdocument_loaders/web/puppeteerdocument_loaders/web/s3document_loaders/web/serpapidocument_loaders/web/sonix_audiodocument_loaders/web/sort_xyz_blockchaindocument_loaders/web/youtubedocument_transformers/html_to_textdocument_transformers/mozilla_readabilitydocume
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nt_transformers/openai_functionsembeddings/baseembeddings/cache_backedembeddings/cohereembeddings/fakeembeddings/googlepalmembeddings/googlevertexaiembeddings/hfembeddings/openaiembeddings/tensorflowevaluationexperimental/autogptexperimental/babyagiexperimental/generative_agentsexperimental/multimodal_embeddings/googlevertexaiexperimental/plan_and_executellms/ai21llms/aleph_alphallms/basellms/bedrockllms/coherellms/googlepalmllms/googlevertexaillms/hfllms/loadllms/ollamallms/openaillms/raycastllms/replicatellms/sagemaker_endpointloadload/serializablememorymemory/zepoutput_parsersoutput_parsers/expressionpromptsprompts/loadretrievers/amazon_kendraretrievers/contextual_compressionretrievers/databerryretrievers/document_compressorsretrievers/document_compressors/chain_extractretrievers/hyderetrievers/metalretrievers/parent_documentretrievers/remoteretrievers/self_queryretrievers/self_query/chromaretrievers/self_query/functionalretrievers/self_query/pineconeretrievers/self_query/supabaseretrievers/self_query/weaviateretrievers/supabaseretrievers/time_weightedretrievers/vesparetrievers/zepschemaschema/output_parserschema/query_constructorschema/retrieverschema/runnableschema/storagesql_dbstorage/in_memorystorage/ioredisstores/doc/gcsstores/doc/in_memorystores/file/in_memorystores/file/nodestores/message/dynamodbstores/message/firestorestores/message/in_memorystores/message/ioredisstores/message/momentostores/message/planetscalestores/message/redisstores/message/upstash_redisstores
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/message/xatatext_splittertoolstools/aws_lambdatools/aws_sfntools/calculatortools/sqltools/webbrowserutil/mathvectorstores/analyticdbvectorstores/basevectorstores/chromavectorstores/elasticsearchvectorstores/faissvectorstores/hnswlibvectorstores/lancedbvectorstores/memoryvectorstores/milvusvectorstores/mongovectorstores/mongodb_atlasvectorstores/myscalevectorstores/opensearchvectorstores/pineconevectorstores/prismavectorstores/qdrantvectorstores/redisvectorstores/singlestorevectorstores/supabasevectorstores/tigrisvectorstores/typeormvectorstores/typesensevectorstores/usearchvectorstores/vectaravectorstores/weaviatevectorstores/xatavectorstores/zepPreviousCommunity navigatorNextlangchain/agents On this page
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On this page langchainIndex​Modules​agentsagents/loadagents/toolkitsagents/toolkits/aws_sfnagents/toolkits/sqlbase_languagecachecache/iorediscache/momentocache/rediscache/upstash_rediscallbackschainschains/loadchains/openai_functionschains/query_constructorchains/query_constructor/irchains/sql_dbchat_models/anthropicchat_models/baiduwenxinchat_models/basechat_models/googlepalmchat_models/googlevertexaichat_models/ollamachat_models/openaidocumentdocument_loaders/basedocument_loaders/fs/bufferdocument_loaders/fs/csvdocument_loaders/fs/directorydocument_loaders/fs/docxdocument_loaders/fs/epubdocument_loaders/fs/jsondocument_loaders/fs/notiondocument_loaders/fs/pdfdocument_loaders/fs/srtdocument_loaders/fs/textdocument_loaders/fs/unstructureddocument_loaders/web/apify_datasetdocument_loaders/web/assemblyaidocument_loaders/web/azure_blob_storage_containerdocument_loaders/web/azure_blob_storage_filedocument_loaders/web/cheeriodocument_loaders/web/college_confidentialdocument_loaders/web/confluencedocument_loaders/web/figmadocument_loaders/web/gitbookdocument_loaders/web/githubdocument_loaders/web/hndocument_loaders/web/imsdbdocument_loaders/web/notionapidocument_loaders/web/notiondbdocument_loaders/web/playwrightdocument_loaders/web/puppeteerdocument_loaders/web/s3document_loaders/web/serpapidocument_loaders/web/sonix_audiodocument_loaders/web/sort_xyz_blockchaindocument_loaders/web/youtubedocument_transformers/html_to_textdocument_transformers/mozilla_readabilitydocument_transformers/openai_fu
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nctionsembeddings/baseembeddings/cache_backedembeddings/cohereembeddings/fakeembeddings/googlepalmembeddings/googlevertexaiembeddings/hfembeddings/openaiembeddings/tensorflowevaluationexperimental/autogptexperimental/babyagiexperimental/generative_agentsexperimental/multimodal_embeddings/googlevertexaiexperimental/plan_and_executellms/ai21llms/aleph_alphallms/basellms/bedrockllms/coherellms/googlepalmllms/googlevertexaillms/hfllms/loadllms/ollamallms/openaillms/raycastllms/replicatellms/sagemaker_endpointloadload/serializablememorymemory/zepoutput_parsersoutput_parsers/expressionpromptsprompts/loadretrievers/amazon_kendraretrievers/contextual_compressionretrievers/databerryretrievers/document_compressorsretrievers/document_compressors/chain_extractretrievers/hyderetrievers/metalretrievers/parent_documentretrievers/remoteretrievers/self_queryretrievers/self_query/chromaretrievers/self_query/functionalretrievers/self_query/pineconeretrievers/self_query/supabaseretrievers/self_query/weaviateretrievers/supabaseretrievers/time_weightedretrievers/vesparetrievers/zepschemaschema/output_parserschema/query_constructorschema/retrieverschema/runnableschema/storagesql_dbstorage/in_memorystorage/ioredisstores/doc/gcsstores/doc/in_memorystores/file/in_memorystores/file/nodestores/message/dynamodbstores/message/firestorestores/message/in_memorystores/message/ioredisstores/message/momentostores/message/planetscalestores/message/redisstores/message/upstash_redisstores/message/xatatext_splitte
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rtoolstools/aws_lambdatools/aws_sfntools/calculatortools/sqltools/webbrowserutil/mathvectorstores/analyticdbvectorstores/basevectorstores/chromavectorstores/elasticsearchvectorstores/faissvectorstores/hnswlibvectorstores/lancedbvectorstores/memoryvectorstores/milvusvectorstores/mongovectorstores/mongodb_atlasvectorstores/myscalevectorstores/opensearchvectorstores/pineconevectorstores/prismavectorstores/qdrantvectorstores/redisvectorstores/singlestorevectorstores/supabasevectorstores/tigrisvectorstores/typeormvectorstores/typesensevectorstores/usearchvectorstores/vectaravectorstores/weaviatevectorstores/xatavectorstores/zep Community navigator langchain/agents IndexModules Page Title: Installation | 🦜️🔗 Langchain Paragraphs:
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Page Title: Installation | 🦜️🔗 Langchain Paragraphs: Skip to main content🦜️🔗 LangChainDocsUse casesAPILangSmithPython DocsCTRLKGet startedIntroductionInstallationQuickstartModulesModel I/​OData connectionChainsMemoryAgentsCallbacksModulesGuidesEcosystemAdditional resourcesCommunity navigatorAPI referenceGet startedInstallationInstallationinfoUpdating from <0.0.52? See this section for instructions.Supported Environments​LangChain is written in TypeScript and can be used in:Node.js (ESM and CommonJS) - 18.x, 19.x, 20.xCloudflare WorkersVercel / Next.js (Browser, Serverless and Edge functions)Supabase Edge FunctionsBrowserDenoInstallation​To get started, install LangChain with the following command:npmYarnpnpmnpm install -S langchainyarn add langchainpnpm add langchainTypeScript​LangChain is written in TypeScript and provides type definitions for all of its public APIs.Loading the library​ESM​LangChain provides an ESM build targeting Node.js environments. You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";If you are using TypeScript in an ESM project we suggest updating your tsconfig.json to include the following:tsconfig.json{ "compilerOptions": { ... "target": "ES2020", // or higher "module": "nodenext", }}CommonJS​LangChain provides a CommonJS build targeting Node.js environments. You can import it using the following syntax:const { OpenAI } = require("langchain/llms/openai");Cloudflare Workers​LangChain can be used in Cloudflare Workers.
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You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";Vercel / Next.js​LangChain can be used in Vercel / Next.js. We support using LangChain in frontend components, in Serverless functions and in Edge functions. You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";Deno / Supabase Edge Functions​LangChain can be used in Deno / Supabase Edge Functions. You can import it using the following syntax:import { OpenAI } from "https://esm.sh/langchain/llms/openai";We recommend looking at our Supabase Template for an example of how to use LangChain in Supabase Edge Functions.Browser​LangChain can be used in the browser. In our CI we test bundling LangChain with Webpack and Vite, but other bundlers should work too. You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";Updating from <0.0.52​If you are updating from a version of LangChain prior to 0.0.52, you will need to update your imports to use the new path structure.For example, if you were previously doingimport { OpenAI } from "langchain/llms";you will now need to doimport { OpenAI } from "langchain/llms/openai";This applies to all imports from the following 6 modules, which have been split into submodules for each integration.
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The combined modules are deprecated, do not work outside of Node.js, and will be removed in a future version.If you were using langchain/llms, see LLMs for updated import paths.If you were using langchain/chat_models, see Chat Models for updated import paths.If you were using langchain/embeddings, see Embeddings for updated import paths.If you were using langchain/vectorstores, see Vector Stores for updated import paths.If you were using langchain/document_loaders, see Document Loaders for updated import paths.If you were using langchain/retrievers, see Retrievers for updated import paths.Other modules are not affected by this change, and you can continue to import them from the same path.Additionally, there are some breaking changes that were needed to support new environments:import { Calculator } from "langchain/tools"; now moved toimport { Calculator } from "langchain/tools/calculator";import { loadLLM } from "langchain/llms"; now moved toimport { loadLLM } from "langchain/llms/load";import { loadAgent } from "langchain/agents"; now moved toimport { loadAgent } from "langchain/agents/load";import { loadPrompt } from "langchain/prompts"; now moved toimport { loadPrompt } from "langchain/prompts/load";import { loadChain } from "langchain/chains"; now moved toimport { loadChain } from "langchain/chains/load";Unsupported: Node.js 16​We do not support Node.js 16, but if you still want to run LangChain on Node.js 16, you will need to follow the instructions in this section.
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We do not guarantee that these instructions will continue to work in the future.You will have to make fetch available globally, either:run your application with NODE_OPTIONS='--experimental-fetch' node ..., orinstall node-fetch and follow the instructions hereAdditionally you'll have to polyfill structuredClone, eg. by installing core-js and following the instructions here.If you are running this on Node.js 18+, you do not need to do anything.PreviousIntroductionNextQuickstartCommunityDiscordTwitterGitHubPythonJS/TSMoreHomepageBlogCopyright © 2023 LangChain, Inc.
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Get startedIntroductionInstallationQuickstartModulesModel I/​OData connectionChainsMemoryAgentsCallbacksModulesGuidesEcosystemAdditional resourcesCommunity navigatorAPI referenceGet startedInstallationInstallationinfoUpdating from <0.0.52? See this section for instructions.Supported Environments​LangChain is written in TypeScript and can be used in:Node.js (ESM and CommonJS) - 18.x, 19.x, 20.xCloudflare WorkersVercel / Next.js (Browser, Serverless and Edge functions)Supabase Edge FunctionsBrowserDenoInstallation​To get started, install LangChain with the following command:npmYarnpnpmnpm install -S langchainyarn add langchainpnpm add langchainTypeScript​LangChain is written in TypeScript and provides type definitions for all of its public APIs.Loading the library​ESM​LangChain provides an ESM build targeting Node.js environments. You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";If you are using TypeScript in an ESM project we suggest updating your tsconfig.json to include the following:tsconfig.json{ "compilerOptions": { ... "target": "ES2020", // or higher "module": "nodenext", }}CommonJS​LangChain provides a CommonJS build targeting Node.js environments. You can import it using the following syntax:const { OpenAI } = require("langchain/llms/openai");Cloudflare Workers​LangChain can be used in Cloudflare Workers.
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You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";Vercel / Next.js​LangChain can be used in Vercel / Next.js. We support using LangChain in frontend components, in Serverless functions and in Edge functions. You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";Deno / Supabase Edge Functions​LangChain can be used in Deno / Supabase Edge Functions. You can import it using the following syntax:import { OpenAI } from "https://esm.sh/langchain/llms/openai";We recommend looking at our Supabase Template for an example of how to use LangChain in Supabase Edge Functions.Browser​LangChain can be used in the browser. In our CI we test bundling LangChain with Webpack and Vite, but other bundlers should work too. You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";Updating from <0.0.52​If you are updating from a version of LangChain prior to 0.0.52, you will need to update your imports to use the new path structure.For example, if you were previously doingimport { OpenAI } from "langchain/llms";you will now need to doimport { OpenAI } from "langchain/llms/openai";This applies to all imports from the following 6 modules, which have been split into submodules for each integration.
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The combined modules are deprecated, do not work outside of Node.js, and will be removed in a future version.If you were using langchain/llms, see LLMs for updated import paths.If you were using langchain/chat_models, see Chat Models for updated import paths.If you were using langchain/embeddings, see Embeddings for updated import paths.If you were using langchain/vectorstores, see Vector Stores for updated import paths.If you were using langchain/document_loaders, see Document Loaders for updated import paths.If you were using langchain/retrievers, see Retrievers for updated import paths.Other modules are not affected by this change, and you can continue to import them from the same path.Additionally, there are some breaking changes that were needed to support new environments:import { Calculator } from "langchain/tools"; now moved toimport { Calculator } from "langchain/tools/calculator";import { loadLLM } from "langchain/llms"; now moved toimport { loadLLM } from "langchain/llms/load";import { loadAgent } from "langchain/agents"; now moved toimport { loadAgent } from "langchain/agents/load";import { loadPrompt } from "langchain/prompts"; now moved toimport { loadPrompt } from "langchain/prompts/load";import { loadChain } from "langchain/chains"; now moved toimport { loadChain } from "langchain/chains/load";Unsupported: Node.js 16​We do not support Node.js 16, but if you still want to run LangChain on Node.js 16, you will need to follow the instructions in this section.
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We do not guarantee that these instructions will continue to work in the future.You will have to make fetch available globally, either:run your application with NODE_OPTIONS='--experimental-fetch' node ..., orinstall node-fetch and follow the instructions hereAdditionally you'll have to polyfill structuredClone, eg. by installing core-js and following the instructions here.If you are running this on Node.js 18+, you do not need to do anything.PreviousIntroductionNextQuickstart
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Get startedInstallationInstallationinfoUpdating from <0.0.52? See this section for instructions.Supported Environments​LangChain is written in TypeScript and can be used in:Node.js (ESM and CommonJS) - 18.x, 19.x, 20.xCloudflare WorkersVercel / Next.js (Browser, Serverless and Edge functions)Supabase Edge FunctionsBrowserDenoInstallation​To get started, install LangChain with the following command:npmYarnpnpmnpm install -S langchainyarn add langchainpnpm add langchainTypeScript​LangChain is written in TypeScript and provides type definitions for all of its public APIs.Loading the library​ESM​LangChain provides an ESM build targeting Node.js environments. You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";If you are using TypeScript in an ESM project we suggest updating your tsconfig.json to include the following:tsconfig.json{ "compilerOptions": { ... "target": "ES2020", // or higher "module": "nodenext", }}CommonJS​LangChain provides a CommonJS build targeting Node.js environments. You can import it using the following syntax:const { OpenAI } = require("langchain/llms/openai");Cloudflare Workers​LangChain can be used in Cloudflare Workers. You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";Vercel / Next.js​LangChain can be used in Vercel / Next.js. We support using LangChain in frontend components, in Serverless functions and in Edge functions.
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You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";Deno / Supabase Edge Functions​LangChain can be used in Deno / Supabase Edge Functions. You can import it using the following syntax:import { OpenAI } from "https://esm.sh/langchain/llms/openai";We recommend looking at our Supabase Template for an example of how to use LangChain in Supabase Edge Functions.Browser​LangChain can be used in the browser. In our CI we test bundling LangChain with Webpack and Vite, but other bundlers should work too. You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";Updating from <0.0.52​If you are updating from a version of LangChain prior to 0.0.52, you will need to update your imports to use the new path structure.For example, if you were previously doingimport { OpenAI } from "langchain/llms";you will now need to doimport { OpenAI } from "langchain/llms/openai";This applies to all imports from the following 6 modules, which have been split into submodules for each integration.
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The combined modules are deprecated, do not work outside of Node.js, and will be removed in a future version.If you were using langchain/llms, see LLMs for updated import paths.If you were using langchain/chat_models, see Chat Models for updated import paths.If you were using langchain/embeddings, see Embeddings for updated import paths.If you were using langchain/vectorstores, see Vector Stores for updated import paths.If you were using langchain/document_loaders, see Document Loaders for updated import paths.If you were using langchain/retrievers, see Retrievers for updated import paths.Other modules are not affected by this change, and you can continue to import them from the same path.Additionally, there are some breaking changes that were needed to support new environments:import { Calculator } from "langchain/tools"; now moved toimport { Calculator } from "langchain/tools/calculator";import { loadLLM } from "langchain/llms"; now moved toimport { loadLLM } from "langchain/llms/load";import { loadAgent } from "langchain/agents"; now moved toimport { loadAgent } from "langchain/agents/load";import { loadPrompt } from "langchain/prompts"; now moved toimport { loadPrompt } from "langchain/prompts/load";import { loadChain } from "langchain/chains"; now moved toimport { loadChain } from "langchain/chains/load";Unsupported: Node.js 16​We do not support Node.js 16, but if you still want to run LangChain on Node.js 16, you will need to follow the instructions in this section.
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We do not guarantee that these instructions will continue to work in the future.You will have to make fetch available globally, either:run your application with NODE_OPTIONS='--experimental-fetch' node ..., orinstall node-fetch and follow the instructions hereAdditionally you'll have to polyfill structuredClone, eg. by installing core-js and following the instructions here.If you are running this on Node.js 18+, you do not need to do anything.PreviousIntroductionNextQuickstart
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InstallationinfoUpdating from <0.0.52? See this section for instructions.Supported Environments​LangChain is written in TypeScript and can be used in:Node.js (ESM and CommonJS) - 18.x, 19.x, 20.xCloudflare WorkersVercel / Next.js (Browser, Serverless and Edge functions)Supabase Edge FunctionsBrowserDenoInstallation​To get started, install LangChain with the following command:npmYarnpnpmnpm install -S langchainyarn add langchainpnpm add langchainTypeScript​LangChain is written in TypeScript and provides type definitions for all of its public APIs.Loading the library​ESM​LangChain provides an ESM build targeting Node.js environments. You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";If you are using TypeScript in an ESM project we suggest updating your tsconfig.json to include the following:tsconfig.json{ "compilerOptions": { ... "target": "ES2020", // or higher "module": "nodenext", }}CommonJS​LangChain provides a CommonJS build targeting Node.js environments. You can import it using the following syntax:const { OpenAI } = require("langchain/llms/openai");Cloudflare Workers​LangChain can be used in Cloudflare Workers. You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";Vercel / Next.js​LangChain can be used in Vercel / Next.js. We support using LangChain in frontend components, in Serverless functions and in Edge functions.
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You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";Deno / Supabase Edge Functions​LangChain can be used in Deno / Supabase Edge Functions. You can import it using the following syntax:import { OpenAI } from "https://esm.sh/langchain/llms/openai";We recommend looking at our Supabase Template for an example of how to use LangChain in Supabase Edge Functions.Browser​LangChain can be used in the browser. In our CI we test bundling LangChain with Webpack and Vite, but other bundlers should work too. You can import it using the following syntax:import { OpenAI } from "langchain/llms/openai";Updating from <0.0.52​If you are updating from a version of LangChain prior to 0.0.52, you will need to update your imports to use the new path structure.For example, if you were previously doingimport { OpenAI } from "langchain/llms";you will now need to doimport { OpenAI } from "langchain/llms/openai";This applies to all imports from the following 6 modules, which have been split into submodules for each integration.