150+ FREE APIs Every Developer Needs to Know
Tags: webdev, api, developer, beginners
Published: 2024-05-30 18:24:52

## Table of Contents

1. [Weather APIs ⛅️🌦️🌩️](#weather-apis)
2. [Exchange Rates APIs 💱💲💹](#exchange-rates-apis)
3. [Cryptocurrency APIs ₿💰🔗](#cryptocurrency-apis)
4. [Placeholder Image APIs 📸🖼️🎨](#placeholder-image-apis)
5. [Random Generators APIs 🎲🔀🎰](#random-generators-apis)
6. [News APIs 📰📢🗞️](#news-apis)
7. [Maps and Geolocation APIs 🗺️📍🌍](#maps-and-geolocation-apis)
8. [Search APIs 🔍📑🕵️](#search-apis)
9. [Machine Learning APIs 🤖🧠🔮](#machine-learning-apis)
10. [Screenshot and Picture APIs 📷🌐🖼️](#screenshot-and-picture-apis)
11. [URL Shortening APIs 🔗💻📄](#url-shortening-apis)
12. [Social Media APIs 🐦📹🎶](#social-media-apis)
13. [SEO APIs 🔍📈💡](#seo-apis)
14. [Shopping APIs 🛍️🛒📦](#shopping-apis)
15. [Developer APIs 💻🔧🛠️](#developer-apis)

[Qit.tools](https://qit.tools/) - ⚡ Interactive Online Web 🛠️ Tools

## Weather APIs ⛅️🌦️🌩️

| **API Name**       | **Description**                                      | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|--------------------|------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| OpenWeatherMap     | Weather data for any location.                       | 60 calls per minute           | API Key            | Free with limited usage     | [OpenWeatherMap Docs](https://openweathermap.org/api)  |
| Weatherstack       | Real-time weather data.                              | 250 requests per month        | API Key            | Free with limited usage     | [Weatherstack Docs](https://weatherstack.com/documentation)  |
| Climacell (Tomorrow.io) | Hyper-local weather data.                            | 500 requests per month        | API Key            | Free with limited usage     | [Climacell Docs](https://www.climacell.co/weather-api/)  |
| WeatherAPI         | Real-time weather data.                              | 1,000 calls per day           | API Key            | Free with limited usage     | [WeatherAPI Docs](https://www.weatherapi.com/docs/)  |
| MetaWeather        | Weather data for any location.                       | No strict limits              | None               | Free                        | [MetaWeather Docs](https://www.metaweather.com/api/)  |
| Open-Meteo         | Free weather forecast API.                           | No strict limits              | None               | Free                        | [Open-Meteo Docs](https://open-meteo.com/en/docs)  |
| Weatherbit         | Weather data and forecasts.                          | 150 calls per day             | API Key            | Free with limited usage     | [Weatherbit Docs](https://www.weatherbit.io/api)  |
| Visual Crossing    | Global weather data and forecasts.                   | 1,000 calls per day           | API Key            | Free with limited usage     | [Visual Crossing Docs](https://www.visualcrossing.com/documentation/weather-api)  |

## Exchange Rates APIs 💱💲💹

| **API Name**          | **Description**                                        | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|-----------------------|--------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| ExchangeRate-API      | Exchange rates for any currency.                       | 1,500 requests per month      | API Key            | Free with limited usage     | [ExchangeRate-API Docs](https://www.exchangerate-api.com/docs/) |
| Frankfurter           | Exchange rates and currency conversion.                | No strict limits              | None               | Free                        | [Frankfurter Docs](https://www.frankfurter.app/docs) |
| Open Exchange Rates   | Real-time and historical exchange rates.               | 1,000 requests per month      | API Key            | Free with limited usage     | [Open Exchange Rates Docs](https://docs.openexchangerates.org/) |
| Fixer.io              | Exchange rates and currency conversion.                | 1,000 requests per month      | API Key            | Free with limited usage     | [Fixer.io Docs](https://fixer.io/documentation) |
| CurrencyLayer         | Real-time exchange rates and currency conversion.      | 1,000 requests per month      | API Key            | Free with limited usage     | [CurrencyLayer Docs](https://currencylayer.com/documentation) |
| XE.com                | Real-time and historical exchange rates.               | 100,000 API units per month   | API Key            | Free with limited usage     | [XE.com Docs](https://xecdapi.xe.com/) |
| 1Forge                | Real-time Forex and Cryptocurrency data.               | 500 requests per day          | API Key            | Free with limited usage     | [1Forge Docs](https://1forge.com/forex-data-api) |
| OANDA Exchange Rates  | Exchange rates and currency data.                      | No strict limits (free tier)  | API Key            | Free with limited usage     | [OANDA Docs](https://developer.oanda.com/) |
| Currency API          | Real-time exchange rate data for 150+ currencies.      | 1,000 requests per month      | API Key            | Free with limited usage     | [Currency API Docs](https://currencyapi.com/docs) |
| ExchangeRatesAPI.io   | Reliable exchange rates and currency conversion.       | 1,000 requests per month      | API Key            | Free with limited usage     | [ExchangeRatesAPI.io Docs](https://exchangeratesapi.io/documentation/) |
| Exchangerate.host     | Free foreign exchange rates and currency conversion.   | 5,000 requests per month      | None               | Free with limited usage     | [Exchangerate.host Docs](https://exchangerate.host/#/docs) |
| Free Forex API        | Real-time Forex rates and currency conversion.         | 1,000 requests per month      | API Key            | Free with limited usage     | [Free Forex API Docs](https://www.freeforexapi.com/) |
| Xignite               | Financial market data including exchange rates.        | 100 requests per hour         | API Key            | Free with limited usage     | [Xignite Docs](https://www.xignite.com/) |

## Cryptocurrency APIs ₿💰🔗

| **API Name**       | **Description**                                      | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|--------------------|------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| CoinGecko          | Comprehensive cryptocurrency market data.            | No strict limits              | None               | Free                        | [CoinGecko Docs](https://www.coingecko.com/en/api)    |
| CoinAPI            | Real-time and historical cryptocurrency data.        | 100 requests per day          | API Key            | Free with limited usage     | [CoinAPI Docs](https://docs.coinapi.io/)         |
| Nomics             | Cryptocurrency market cap & pricing data.            | 1,000 requests per day        | API Key            | Free with limited usage     | [Nomics Docs](https://nomics.com/docs/)         |
| CryptoCompare      | Real-time and historical cryptocurrency data.         | 250,000 calls per month       | API Key            | Free with limited usage     | [CryptoCompare Docs](https://min-api.cryptocompare.com/documentation) |
| CoinCap            | Real-time cryptocurrency market data.                | 200 requests per minute       | API Key            | Free with limited usage     | [CoinCap Docs](https://docs.coincap.io/)         |
| CoinMarketCap      | Cryptocurrency market cap and pricing data.          | 10,000 requests per month     | API Key            | Free with limited usage     | [CoinMarketCap Docs](https://coinmarketcap.com/api/documentation/v1/) |
| CoinLore           | Cryptocurrency prices and market data.               | No strict limits              | None               | Free                        | [CoinLore Docs](https://www.coinlore.com/cryptocurrency-data-api) |
| Messari            | Cryptocurrency market data, news, and metrics.       | 50 requests per second        | API Key            | Free with limited usage     | [Messari Docs](https://messari.io/api)          |
| BraveNewCoin       | Real-time and historical cryptocurrency data.        | 1,000 requests per month      | API Key            | Free with limited usage     | [BraveNewCoin Docs](https://bravenewcoin.com/developers) |
| Coinpaprika        | Cryptocurrency market cap, pricing, and historical data. | 25,000 requests per month     | API Key            | Free with limited usage     | [Coinpaprika Docs](https://api.coinpaprika.com/) |
| CoinAPI.io         | Market data for cryptocurrencies.                    | 100 requests per day          | API Key            | Free with limited usage     | [CoinAPI.io Docs](https://docs.coinapi.io/)     |
| Coinlib            | Real-time cryptocurrency prices and market data.     | 10,000 requests per month     | API Key            | Free with limited usage     | [Coinlib Docs](https://coinlib.io/apidocs)      |
| Bitfinex           | Real-time cryptocurrency trading data.               | No strict limits              | None               | Free                        | [Bitfinex Docs](https://docs.bitfinex.com/docs) |
| Binance            | Real-time cryptocurrency trading data.               | 1,200 requests per minute     | API Key            | Free with limited usage     | [Binance Docs](https://binance-docs.github.io/apidocs/spot/en/) |
| Kraken             | Real-time and historical cryptocurrency trading data.| No strict limits              | API Key            | Free                        | [Kraken Docs](https://www.kraken.com/features/api) |

## Placeholder Image APIs 📸🖼️🎨

| **API Name**         | **Description**                                        | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|----------------------|--------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| Placeholder.com      | Generates customizable placeholder images.            | No strict limits              | None               | Free                        | [Placeholder.com Docs](https://placeholder.com/) |
| Lorem Picsum         | Generates random placeholder images.                   | No strict limits              | None               | Free                        | [Lorem Picsum Docs](https://picsum.photos/)     |
| PlaceIMG             | Provides placeholder images for any size and category. | No strict limits              | None               | Free                        | [PlaceIMG Docs](https://placeimg.com/)          |
| FillMurray           | Placeholder images of Bill Murray.                     | No strict limits              | None               | Free                        | [FillMurray Docs](http://www.fillmurray.com/)   |
| PlaceCage            | Placeholder images of Nicolas Cage.                    | No strict limits              | None               | Free                        | [PlaceCage Docs](http://www.placecage.com/)     |
| PlaceBear            | Placeholder images of bears.                           | No strict limits              | None               | Free                        | [PlaceBear Docs](http://placebear.com/)         |
| DummyImage.com       | Customizable placeholder images with text.             | No strict limits              | None               | Free                        | [DummyImage.com Docs](https://dummyimage.com/)  |
| PlaceKitten          | Placeholder images of kittens.                         | No strict limits              | None               | Free                        | [PlaceKitten Docs](https://placekitten.com/)    |
| PlaceDog             | Placeholder images of dogs.                            | No strict limits              | None               | Free                        | [PlaceDog Docs](https://place.dog/)             |
| PlaceKeanu           | Placeholder images of Keanu Reeves.                    | No strict limits              | None               | Free                        | [PlaceKeanu Docs](https://placekeanu.com/)      |
| BaconMockup          | Placeholder images of bacon.                           | No strict limits              | None               | Free                        | [BaconMockup Docs](https://baconmockup.com/)    |
| FakeImg.pl           | Customizable placeholder images with text and colors.  | No strict limits              | None               | Free                        | [FakeImg.pl Docs](https://fakeimg.pl/)          |
| Placeholder Image Generator | Simple placeholder images with customizable size and text. | No strict limits  | None               | Free                        | [Placeholder Image Generator Docs](https://placeholder-image.dev/) |
| Pixelholdr           | Customizable placeholder images for web designers.     | No strict limits              | None               | Free                        | [Pixelholdr Docs](https://pixelholdr.com/)      |
| LoremFlickr          | Random placeholder images from Flickr.                 | No strict limits              | None               | Free                        | [LoremFlickr Docs](https://loremflickr.com/)    |

## Random Generators APIs 🎲🔀🎰

| **API Name**            | **Description**                                        | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|-------------------------|--------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| Random.org              | Generates random numbers, sequences, and other data.   | Varies, daily quotas apply    | API Key            | Free with limited usage     | [Random.org Docs](https://api.random.org/json-rpc/4/) |
| RandomUser.me           | Generates random user data (name, email, address, etc.)| No strict limits              | None               | Free                        | [RandomUser.me Docs](https://randomuser.me/documentation) |
| FakerAPI.it             | Generates fake data for testing and development.       | 100 requests per month        | API Key            | Free with limited usage     | [FakerAPI.it Docs](https://fakerapi.it/en)       |
| Dicebear Avatars        | Generates random avatars.                              | No strict limits              | None               | Free                        | [Dicebear Avatars Docs](https://avatars.dicebear.com/) |
| Random Data API         | Generates random data such as names, addresses, and more. | No strict limits           | None               | Free                        | [Random Data API Docs](https://random-data-api.com/documentation) |
| Namefake.com            | Generates random names and related data.               | No strict limits              | None               | Free                        | [Namefake.com Docs](https://namefake.com/api)    |
| Randommer.io            | Generates random data including text, numbers, and more. | 100 requests per day       | API Key            | Free with limited usage     | [Randommer.io Docs](https://randommer.io/randommer-api) |
| Uinames                 | Generates random names based on country.               | No strict limits              | None               | Free                        | [Uinames Docs](https://uinames.com/api)          |
| TheDogAPI               | Generates random pictures of dogs.                     | 10,000 requests per month     | API Key            | Free with limited usage     | [TheDogAPI Docs](https://thedogapi.com/documentation) |
| BoredAPI                | Suggests random activities to overcome boredom.        | No strict limits              | None               | Free                        | [BoredAPI Docs](https://www.boredapi.com/documentation) |
| YesNo.wtf               | Returns random yes or no answers.                      | No strict limits              | None               | Free                        | [YesNo.wtf Docs](https://yesno.wtf/)             |
| RandomWordAPI           | Generates random words.                                | No strict limits              | None               | Free                        | [RandomWordAPI Docs](https://random-word-api.herokuapp.com/home) |
| PiplAPI                 | Generates random personal profiles.                    | No strict limits              | None               | Free                        | [PiplAPI Docs](https://pipl.ir/v1)               |
| RandomFox               | Generates random pictures of foxes.                    | No strict limits              | None               | Free                        | [RandomFox Docs](https://randomfox.ca/floof/)    |
| Random Quotes API       | Generates random quotes.                               | No strict limits              | None               | Free                        | [Random Quotes API Docs](https://api.quotable.io/) |

## News APIs 📰📢🗞️

| **API Name**         | **Description**                                        | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|----------------------|--------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| NewsAPI              | Fetch news articles from various sources.              | 500 requests per day          | API Key            | Free with limited usage     | [NewsAPI Docs](https://newsapi.org/docs)         |
| Currents API         | Latest news from various sources.                      | 100 requests per day          | API Key            | Free with limited usage     | [Currents API Docs](https://currentsapi.services/en/docs/)  |
| Mediastack           | Real-time news data.                                   | 500 requests per month        | API Key            | Free with limited usage     | [Mediastack Docs](https://mediastack.com/documentation)  |
| ContextualWeb News   | Search for news articles.                              | 10,000 requests per month     | API Key            | Free with limited usage     | [ContextualWeb Docs](https://rapidapi.com/contextualwebsearch/api/websearch)  |
| GDELT                | Analyzes global news events.                           | No strict limits              | None               | Free                        | [GDELT Docs](https://blog.gdeltproject.org/gdelt-2-0-our-global-world-in-realtime/)  |
| The Guardian API     | Access articles and content from The Guardian.         | 12,000 requests per day       | API Key            | Free with limited usage     | [The Guardian Docs](https://open-platform.theguardian.com/documentation/)  |
| NY Times API         | Access articles and content from The New York Times.   | 4,000 requests per day        | API Key            | Free with limited usage     | [NY Times Docs](https://developer.nytimes.com/apis)  |
| NewsData.io          | Real-time news data.                                   | 200 requests per day          | API Key            | Free with limited usage     | [NewsData.io Docs](https://newsdata.io/docs)    |
| Bing News Search API | Search for news articles.                              | 3 requests per second         | API Key            | Free with limited usage     | [Bing News Docs](https://www.microsoft.com/en-us/bing/apis/bing-news-search-api-v7)  |
| Event Registry API   | Real-time news monitoring and analytics.               | 1,000 requests per day        | API Key            | Free with limited usage     | [Event Registry Docs](https://eventregistry.org/documentation)  |
| Webz.io News API     | Access news articles from various sources.             | 100 requests per day         | API Key            | Free with limited usage     | [Webz.io Docs](https://webz.io/api/)            |
| Aylien News API      | News and blog content with analysis features.          | 1,000 requests per day        | API Key            | Free with limited usage     | [Aylien Docs](https://docs.aylien.com/newsapi/) |
| NewsCatcher API      | Real-time news from 50,000 sources worldwide.          | 500 requests per month        | API Key            | Free with limited usage     | [NewsCatcher Docs](https://newscatcherapi.com/documentation) |
| ContextualWeb News   | News articles search engine.                           | 10,000 requests per month     | API Key            | Free with limited usage     | [ContextualWeb Docs](https://rapidapi.com/contextualwebsearch/api/websearch) |
| News River API       | Access to 70+ million articles from news sources.      | 250 requests per day          | API Key            | Free with limited usage     | [News River Docs](https://www.newsriver.io/)    |

## Maps and Geolocation APIs 🗺️📍🌍

| **API Name**         | **Description**                                        | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|----------------------|--------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| OpenStreetMap        | Free editable map of the world.                        | No strict limits              | None               | Free                        | [OpenStreetMap Docs](https://wiki.openstreetmap.org/wiki/API)  |
| Mapbox               | Maps and location data for web and mobile applications.| 50,000 requests per month     | API Key            | Free with limited usage     | [Mapbox Docs](https://docs.mapbox.com/)          |
| OpenCage Geocoder    | Forward and reverse geocoding.                         | 2,500 requests per day        | API Key            | Free with limited usage     | [OpenCage Docs](https://opencagedata.com/api)    |
| Geoapify             | Geocoding, routing, and places data.                   | 3,000 requests per day        | API Key            | Free with limited usage     | [Geoapify Docs](https://apidocs.geoapify.com/docs) |
| Positionstack        | Real-time forward and reverse geocoding.               | 25,000 requests per month     | API Key            | Free with limited usage     | [Positionstack Docs](https://positionstack.com/documentation) |
| HERE Geocoding and Search | Geocoding and places data.                            | 250,000 transactions per month | API Key            | Free with limited usage     | [HERE Docs](https://developer.here.com/documentation/geocoding-search-api/dev_guide/index.html) |
| LocationIQ           | Geocoding and reverse geocoding.                       | 5,000 requests per day        | API Key            | Free with limited usage     | [LocationIQ Docs](https://locationiq.com/docs)   |
| MapQuest            | Mapping, geocoding, and routing services.               | 15,000 transactions per month | API Key            | Free with limited usage     | [MapQuest Docs](https://developer.mapquest.com/documentation/) |
| BigDataCloud         | IP geolocation and reverse geocoding.                  | 10,000 requests per month     | API Key            | Free with limited usage     | [BigDataCloud Docs](https://www.bigdatacloud.com/geocoding-apis) |
| IP Geolocation API   | Geolocate an IP address.                               | 30,000 requests per month     | API Key            | Free with limited usage     | [IP Geolocation Docs](https://ipgeolocation.io/documentation) |
| Geocode.xyz          | Geocoding and reverse geocoding.                       | 1 request per second          | None               | Free                        | [Geocode.xyz Docs](https://geocode.xyz/api)      |
| Nominatim            | Search OSM data by name and address.                   | No strict limits              | None               | Free                        | [Nominatim Docs](https://nominatim.org/release-docs/develop/api/Search/) |
| FreeGeoIP            | Geolocate an IP address.                               | 15,000 requests per hour      | None               | Free                        | [FreeGeoIP Docs](https://freegeoip.app/)         |
| SmartyStreets        | Address validation and geocoding.                      | 250 requests per month        | API Key            | Free with limited usage     | [SmartyStreets Docs](https://smartystreets.com/docs) |
| Ambee                | Environmental data APIs including weather and air quality. | 1000 requests per day         | API Key            | Free with limited usage     | [Ambee Docs](https://www.getambee.com/api)       |

## Search APIs 🔍📑🕵️

| **API Name**           | **Description**                                         | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|------------------------|---------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| Google Custom Search   | Custom search engine for websites and applications.     | 100 queries per day           | API Key            | Free with limited usage     | [Google Custom Search Docs](https://developers.google.com/custom-search/v1/overview) |
| Bing Web Search API    | Search the web for relevant information.                | 3 requests per second         | API Key            | Free with limited usage     | [Bing Web Search Docs](https://www.microsoft.com/en-us/bing/apis/bing-web-search-api-v7) |
| DuckDuckGo Instant Answer API | Provides instant answers to search queries.             | No strict limits              | None               | Free                        | [DuckDuckGo Docs](https://duckduckgo.com/api)     |
| ContextualWeb Search   | Web search engine for various types of content.         | 10,000 requests per month     | API Key            | Free with limited usage     | [ContextualWeb Docs](https://rapidapi.com/contextualwebsearch/api/websearch)  |
| Serpstack              | Real-time search engine results from Google.            | 100 searches per month        | API Key            | Free with limited usage     | [Serpstack Docs](https://serpstack.com/documentation) |
| Algolia                | Search and discovery API for dynamic experiences.       | 10,000 operations per month   | API Key            | Free with limited usage     | [Algolia Docs](https://www.algolia.com/doc/)     |
| MeiliSearch            | Fast and relevant search engine for various data.       | No strict limits              | None               | Free                        | [MeiliSearch Docs](https://docs.meilisearch.com/)|
| Elasticsearch          | Real-time distributed search and analytics engine.      | No strict limits for open source | None             | Free                        | [Elasticsearch Docs](https://www.elastic.co/guide/en/elasticsearch/reference/current/index.html) |
| Searchly               | Managed Elasticsearch service.                          | 5,000 documents, 50MB storage | API Key            | Free with limited usage     | [Searchly Docs](https://searchly.com/documentation) |
| Giphy API              | Search and retrieve GIFs.                               | No strict limits              | API Key            | Free                        | [Giphy Docs](https://developers.giphy.com/docs/) |
| News API               | Fetch news articles from various sources.               | 500 requests per day          | API Key            | Free with limited usage     | [News API Docs](https://newsapi.org/docs)        |
| Pexels API             | Search for free stock photos and videos.                | 200 requests per hour         | API Key            | Free with limited usage     | [Pexels Docs](https://www.pexels.com/api/documentation/) |
| Unsplash API           | Access high-quality photos for searches.                | 50 requests per hour          | API Key            | Free with limited usage     | [Unsplash Docs](https://unsplash.com/documentation) |
| GitHub Search API      | Search for repositories, issues, and users on GitHub.   | 30 requests per minute        | API Key            | Free with limited usage     | [GitHub Docs](https://docs.github.com/en/rest/search) |
| OMDB API               | Search for movie data.                                  | 1,000 requests per day        | API Key            | Free with limited usage     | [OMDB Docs](https://www.omdbapi.com/)            |

## Machine Learning APIs 🤖🧠🔮

| **API Name**           | **Description**                                         | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|------------------------|---------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| TensorFlow Serving     | Serving machine learning models in production.          | No strict limits              | None               | Free                        | [TensorFlow Serving Docs](https://www.tensorflow.org/tfx/guide/serving) |
| Hugging Face Transformers | Natural language processing and machine learning models. | No strict limits              | None               | Free                        | [Hugging Face Docs](https://huggingface.co/transformers/) |
| IBM Watson             | Various AI and machine learning services.               | 1,000 API calls per month     | API Key            | Free with limited usage     | [IBM Watson Docs](https://cloud.ibm.com/apidocs) |
| OpenAI GPT-3           | Natural language processing and generation.             | Limited free tier (varies)    | API Key            | Free with limited usage     | [OpenAI Docs](https://beta.openai.com/docs/)     |
| Google Cloud AI        | Machine learning and AI services from Google Cloud.     | Limited free tier (varies)    | API Key            | Free with limited usage     | [Google Cloud AI Docs](https://cloud.google.com/products/ai) |
| Microsoft Azure AI     | Various AI and machine learning services.               | Limited free tier (varies)    | API Key            | Free with limited usage     | [Azure AI Docs](https://azure.microsoft.com/en-us/services/machine-learning/) |
| Clarifai               | Image and video recognition and analysis.               | 5,000 operations per month    | API Key            | Free with limited usage     | [Clarifai Docs](https://docs.clarifai.com/)      |
| Algorithmia            | Deploying and managing machine learning models.         | 10,000 API calls per month    | API Key            | Free with limited usage     | [Algorithmia Docs](https://algorithmia.com/developers) |
| Wit.ai                 | Natural language for speech and text processing.        | No strict limits              | API Key            | Free                        | [Wit.ai Docs](https://wit.ai/docs)               |
| Dialogflow             | Natural language understanding for building chatbots.   | 180 API calls per minute      | API Key            | Free with limited usage     | [Dialogflow Docs](https://cloud.google.com/dialogflow/docs) |
| DeepAI                 | Various AI models for image and text processing.        | No strict limits              | API Key            | Free                        | [DeepAI Docs](https://deepai.org/)               |
| MonkeyLearn            | Text analysis with machine learning.                    | 300 queries per month         | API Key            | Free with limited usage     | [MonkeyLearn Docs](https://monkeylearn.com/api/) |
| BigML                  | Machine learning model creation and deployment.         | 16 MB dataset size limit      | API Key            | Free with limited usage     | [BigML Docs](https://bigml.com/api/)             |
| RapidAPI Machine Learning APIs | A collection of various machine learning APIs.               | Varies by API                 | API Key            | Free with limited usage     | [RapidAPI Machine Learning Docs](https://rapidapi.com/collection/machine-learning-apis) |
| Inferdo                | Image recognition and classification.                   | 5,000 API calls per month     | API Key            | Free with limited usage     | [Inferdo Docs](https://inferdo.com/)             |

## Screenshot and Picture APIs 📷🌐🖼️

| **API Name**         | **Description**                                        | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|----------------------|--------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| ScreenshotAPI.net    | Capture website screenshots.                          | 100 requests per month        | API Key            | Free with limited usage     | [ScreenshotAPI.net Docs](https://screenshotapi.net/documentation) |
| URL2PNG              | Website screenshots in various sizes and formats.     | 100 requests per month        | API Key            | Free with limited usage     | [URL2PNG Docs](https://www.url2png.com/docs/)    |
| ApiFlash             | Capture high-quality screenshots of web pages.        | 100 requests per month        | API Key            | Free with limited usage     | [ApiFlash Docs](https://apiflash.com/documentation) |
| Thumbnail.ws         | Generate website thumbnails.                          | 500 requests per month        | API Key            | Free with limited usage     | [Thumbnail.ws Docs](https://www.thumbnail.ws/api) |
| Microlink            | Convert links to rich media (screenshots, data, etc.).| 1,000 requests per month      | API Key            | Free with limited usage     | [Microlink Docs](https://docs.microlink.io/api/getting-started/overview) |
| ScreenshotLayer      | Capture website screenshots.                          | 100 requests per month        | API Key            | Free with limited usage     | [ScreenshotLayer Docs](https://screenshotlayer.com/documentation) |
| Browshot             | Real-time website screenshots.                        | 100 requests per month        | API Key            | Free with limited usage     | [Browshot Docs](https://browshot.com/docs/api)   |
| Page2Images          | Website thumbnail generator.                          | 100 requests per month        | API Key            | Free with limited usage     | [Page2Images Docs](https://www.page2images.com/doc) |
| URLbox               | Website screenshots and PDFs.                         | 100 requests per month        | API Key            | Free with limited usage     | [URLbox Docs](https://urlbox.io/documentation)   |
| WebShrink.io         | Capture website screenshots and metadata.             | 1,000 requests per month      | API Key            | Free with limited usage     | [WebShrink.io Docs](https://webshrinker.com/documentation/) |
| Capture by Techulus  | Screenshot and PDF API.                               | 200 requests per month        | API Key            | Free with limited usage     | [Techulus Docs](https://techulus.com/capture/docs) |
| ShotStack            | Video and image editing API.                          | 500 render minutes per month  | API Key            | Free with limited usage     | [ShotStack Docs](https://shotstack.io/docs)      |
| Restpack Screenshot  | Full page or viewport screenshots of web pages.       | 100 requests per month        | API Key            | Free with limited usage     | [Restpack Docs](https://restpack.io/screenshot-api/docs) |
| Placid                | Generate custom images from templates.                | 100 images per month          | API Key            | Free with limited usage     | [Placid Docs](https://placid.app/docs/api)       |
| Carbon.now.sh API    | Create beautiful images of your source code.          | No strict limits              | None               | Free                        | [Carbon.now.sh Docs](https://github.com/carbon-app/carbon) |

### URL Shortening APIs

| **API Name**         | **Description**                                        | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|----------------------|--------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| Bitly                | Shorten, share, and track links.                       | 50 requests per month         | API Key            | Free with limited usage     | [Bitly Docs](https://dev.bitly.com/docs/getting-started/authentication/) |
| TinyURL              | Simple URL shortening service.                         | No strict limits              | None               | Free                        | [TinyURL Docs](https://tinyurl.com/api-create.php) |
| Rebrandly            | Custom URL shortener with link management.             | 5,000 requests per month      | API Key            | Free with limited usage     | [Rebrandly Docs](https://developers.rebrandly.com/docs) |
| is.gd                | Simple URL shortening service.                         | No strict limits              | None               | Free                        | [is.gd Docs](https://is.gd/developer_api_info.php) |
| T2M                   | URL shortening service with tracking.                  | 100 requests per month        | API Key            | Free with limited usage     | [T2M Docs](https://t2mio.com/api-docs)           |
| Cutt.ly              | Custom URL shortener with link management.             | 1,000 requests per month      | API Key            | Free with limited usage     | [Cutt.ly Docs](https://cutt.ly/cuttly-api)      |
| Short.io             | Branded URL shortener with link management.            | 1,000 requests per month      | API Key            | Free with limited usage     | [Short.io Docs](https://short.io/api)           |
| Shrtco.de            | Simple URL shortening service.                         | No strict limits              | None               | Free                        | [Shrtco.de Docs](https://shrtco.de/docs/)       |
| ClickMeter           | URL shortening with tracking and analytics.            | 1,000 requests per month      | API Key            | Free with limited usage     | [ClickMeter Docs](https://support.clickmeter.com/hc/en-us/articles/360006566993-REST-API) |
| v.gd                 | Simple URL shortening service.                         | No strict limits              | None               | Free                        | [v.gd Docs](https://v.gd/developer_api_info.php) |
| bl.ink               | URL shortening and link management service.            | 1,000 requests per month      | API Key            | Free with limited usage     | [bl.ink Docs](https://help.bl.ink/docs/api)      |
| Branch.io            | URL shortening and deep linking.                       | 5,000 requests per month      | API Key            | Free with limited usage     | [Branch.io Docs](https://docs.branch.io/reference) |
| Polr API             | Open-source URL shortener service.                     | No strict limits              | API Key            | Free                        | [Polr Docs](https://docs.polrproject.org/en/latest/api/) |
| short.cm             | Branded URL shortener with analytics.                  | 1,000 requests per month      | API Key            | Free with limited usage     | [short.cm Docs](https://shortcm.io/api)         |
| Tiny.cc              | URL shortener with analytics.                          | 500 requests per month        | API Key            | Free with limited usage     | [Tiny.cc Docs](https://tiny.cc/api-docs)        |

### Social Media APIs

| **API Name**         | **Description**                                        | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|----------------------|--------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| Twitter API          | Access tweets, user profiles, and analytics.           | 500,000 tweets per month      | API Key            | Free with limited usage     | [Twitter API Docs](https://developer.twitter.com/en/docs) |
| Facebook Graph API   | Access to Facebook social graph and user data.         | Rate limits apply             | API Key            | Free with limited usage     | [Facebook Graph API Docs](https://developers.facebook.com/docs/graph-api) |
| Instagram Basic Display API | Access basic profile information and media.              | 200 requests per hour         | API Key            | Free with limited usage     | [Instagram Basic Display API Docs](https://developers.facebook.com/docs/instagram-basic-display-api) |
| LinkedIn API         | Access to LinkedIn user data and professional network. | Rate limits apply             | API Key            | Free with limited usage     | [LinkedIn API Docs](https://docs.microsoft.com/en-us/linkedin/shared/integrations/people/profile-api) |
| Reddit API           | Access to Reddit posts, comments, and user data.       | 60 requests per minute        | API Key            | Free with limited usage     | [Reddit API Docs](https://www.reddit.com/dev/api/) |
| YouTube Data API     | Access YouTube video and channel data.                 | 10,000 units per day          | API Key            | Free with limited usage     | [YouTube Data API Docs](https://developers.google.com/youtube/v3) |
| TikTok API           | Access TikTok video data and analytics.                | Rate limits apply             | API Key            | Free with limited usage     | [TikTok API Docs](https://developers.tiktok.com/doc/login-kit-web) |
| Pinterest API        | Access Pinterest boards, pins, and user data.          | Rate limits apply             | API Key            | Free with limited usage     | [Pinterest API Docs](https://developers.pinterest.com/docs/getting-started/introduction/) |
| Tumblr API           | Access to Tumblr blog posts and user data.             | 1,000 requests per hour       | API Key            | Free with limited usage     | [Tumblr API Docs](https://www.tumblr.com/docs/en/api/v2) |
| Snapchat Marketing API | Access Snapchat ad campaigns and analytics.             | Rate limits apply             | API Key            | Free with limited usage     | [Snapchat Marketing API Docs](https://marketingapi.snapchat.com/docs/) |
| VK API               | Access VKontakte social network data.                  | Rate limits apply             | API Key            | Free with limited usage     | [VK API Docs](https://vk.com/dev/manuals)        |
| Slack API            | Access Slack workspace data and messaging.             | Rate limits apply             | API Key            | Free with limited usage     | [Slack API Docs](https://api.slack.com/)         |
| Discord API          | Access Discord server data and messaging.              | Rate limits apply             | API Key            | Free with limited usage     | [Discord API Docs](https://discord.com/developers/docs/intro) |
| Mastodon API         | Access Mastodon social network data.                   | Rate limits apply             | API Key            | Free with limited usage     | [Mastodon API Docs](https://docs.joinmastodon.org/api/) |
| Meetup API           | Access Meetup group and event data.                    | Rate limits apply             | API Key            | Free with limited usage     | [Meetup API Docs](https://www.meetup.com/meetup_api/) |

### SEO APIs 🔍📈💡

| **API Name**             | **Description**                                         | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|--------------------------|---------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| Google Search Console API | Access search analytics, sitemap, and URL crawl errors data. | 100 requests per second        | OAuth 2.0          | Free                        | [Google Search Console Docs](https://developers.google.com/webmaster-tools/search-console-api-original/v3/) |
| Ahrefs API               | SEO tools for backlink, keyword, and competitive analysis. | 500 rows per month             | API Key            | Free with limited usage     | [Ahrefs API Docs](https://ahrefs.com/api/documentation/) |
| SEMrush API              | Online visibility and marketing analytics.               | Varies, up to 10,000 requests/day | API Key            | Free with limited usage     | [SEMrush API Docs](https://www.semrush.com/api-analytics/) |
| Moz API                  | SEO tools for link building, keyword research, and site audits. | 120 requests per minute       | API Key            | Free with limited usage     | [Moz API Docs](https://moz.com/products/api) |
| SERPstat API             | SEO tools for rank tracking, keyword research, and competitor analysis. | 10,000 requests per day       | API Key            | Free with limited usage     | [SERPstat API Docs](https://serpstat.com/api/) |
| Majestic API             | Backlink and site explorer tools.                        | Varies by endpoint             | API Key            | Free with limited usage     | [Majestic API Docs](https://developer.majestic.com/api) |
| SE Ranking API           | All-in-one SEO tools for rank tracking and website audit. | 100 requests per minute        | API Key            | Free with limited usage     | [SE Ranking API Docs](https://seranking.com/api.html) |
| SpyFu API                | SEO tools for keyword research, competitor analysis, and domain insights. | 1,000 requests per month       | API Key            | Free with limited usage     | [SpyFu API Docs](https://www.spyfu.com/solutions/api) |
| Rank Math API            | SEO tools for WordPress websites including keyword tracking and site audits. | No strict limits               | API Key            | Free                        | [Rank Math API Docs](https://rankmath.com/kb/analytics-api/) |
| BrightLocal API          | Local SEO tools for rank tracking, citation management, and reviews. | Varies by endpoint             | API Key            | Free with limited usage     | [BrightLocal API Docs](https://www.brightlocal.com/api/) |
| SerpWow API              | Real-time search engine result pages (SERP) data.        | 5,000 requests per month       | API Key            | Free with limited usage     | [SerpWow API Docs](https://serpwow.com/docs) |
| DataForSEO API           | Comprehensive SEO tools for keyword and rank tracking.   | Varies by endpoint             | API Key            | Free with limited usage     | [DataForSEO API Docs](https://docs.dataforseo.com/) |
| SEOstack API             | SERP data extraction and rank tracking tools.            | 1,000 requests per month       | API Key            | Free with limited usage     | [SEOstack API Docs](https://seostack.io/documentation) |
| Botify API               | Website crawling and log analysis tools for SEO.         | 10,000 requests per month      | API Key            | Free with limited usage     | [Botify API Docs](https://docs.botify.com/) |
| Screaming Frog API       | Website crawler for SEO audits.                          | Varies by usage                | API Key            | Free with limited usage     | [Screaming Frog API Docs](https://www.screamingfrog.co.uk/seo-spider-api/) |

### Shopping APIs 🛍️🛒📦

| **API Name**             | **Description**                                         | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|--------------------------|---------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| Amazon Product Advertising API | Access product details, reviews, and prices from Amazon. | Varies by account             | API Key            | Free with limited usage     | [Amazon Product Advertising API Docs](https://webservices.amazon.com/paapi5/documentation/) |
| eBay Shopping API        | Retrieve eBay listings, item details, and seller information. | 5,000 calls per day           | OAuth 2.0          | Free                        | [eBay Shopping API Docs](https://developer.ebay.com/api-docs/buy/static/api-shopping.html) |
| Walmart API              | Access Walmart product data, pricing, and inventory.    | Varies by endpoint             | API Key            | Free with limited usage     | [Walmart API Docs](https://developer.walmart.com/) |
| Etsy API                 | Access Etsy marketplace data including listings, shops, and reviews. | 5,000 calls per day           | OAuth 2.0          | Free with limited usage     | [Etsy API Docs](https://developers.etsy.com/documentation/) |
| Shopify Admin API        | Manage Shopify store data including products, orders, and customers. | 40 requests per minute        | API Key            | Free with limited usage     | [Shopify Admin API Docs](https://shopify.dev/docs/admin-api) |
| BigCommerce API          | Manage BigCommerce store data including products, orders, and customers. | 20 requests per second        | API Key            | Free with limited usage     | [BigCommerce API Docs](https://developer.bigcommerce.com/api-reference) |
| Best Buy API             | Access Best Buy product data, pricing, and availability. | 5,000 requests per day         | API Key            | Free with limited usage     | [Best Buy API Docs](https://developer.bestbuy.com/) |
| AliExpress API           | Access AliExpress product details, pricing, and reviews. | Varies by account             | API Key            | Free with limited usage     | [AliExpress API Docs](https://developers.aliexpress.com/en/doc.htm) |
| WooCommerce REST API     | Manage WooCommerce store data including products, orders, and customers. | 1,000 requests per day        | API Key            | Free with limited usage     | [WooCommerce REST API Docs](https://woocommerce.github.io/woocommerce-rest-api-docs/) |
| Rakuten Marketplace API  | Access Rakuten product data, pricing, and availability.  | Varies by account             | API Key            | Free with limited usage     | [Rakuten Marketplace API Docs](https://developer.rakuten.com/) |
| Mercari API              | Access Mercari marketplace data including listings and user profiles. | Varies by account             | API Key            | Free with limited usage     | [Mercari API Docs](https://www.mercari.com/us/api-docs/) |
| Zalando API              | Access Zalando product data and search functionality.    | Varies by account             | API Key            | Free with limited usage     | [Zalando API Docs](https://developers.zalando.com/) |
| Flipkart Affiliate API   | Access Flipkart product data, prices, and deals.         | 1,000 requests per day         | API Key            | Free with limited usage     | [Flipkart Affiliate API Docs](https://affiliate.flipkart.com/api-docs) |
| Target API               | Access Target product data, pricing, and availability.   | Varies by account             | API Key            | Free with limited usage     | [Target API Docs](https://developer.target.com/) |
| OpenCart API             | Manage OpenCart store data including products, orders, and customers. | Varies by account             | API Key            | Free with limited usage     | [OpenCart API Docs](https://opencart-documentation.readthedocs.io/en/latest/api/intro/) |

### Developer APIs 💻🔧🛠️

| **API Name**             | **Description**                                         | **Usage Limits**              | **Authentication** | **Free**                    | **Documentation**                                |
|--------------------------|---------------------------------------------------------|-------------------------------|--------------------|-----------------------------|--------------------------------------------------|
| GitHub API               | Access repositories, issues, and pull requests on GitHub. | 5,000 requests per hour       | OAuth 2.0 / API Key| Free                        | [GitHub API Docs](https://docs.github.com/en/rest) |
| GitLab API               | Access repositories, issues, and merge requests on GitLab. | 10 requests per second        | OAuth 2.0 / API Key| Free                        | [GitLab API Docs](https://docs.gitlab.com/ee/api/) |
| Bitbucket API            | Access repositories, issues, and pull requests on Bitbucket. | 1,000 requests per hour       | OAuth 2.0 / API Key| Free                        | [Bitbucket API Docs](https://developer.atlassian.com/bitbucket/api/2/reference/) |
| Stack Exchange API       | Access questions, answers, and user data on Stack Overflow. | 300 requests per day          | API Key            | Free                        | [Stack Exchange API Docs](https://api.stackexchange.com/docs) |
| Atlassian JIRA API       | Manage JIRA projects, issues, and workflows.             | 1,000 requests per day        | OAuth 2.0 / API Key| Free with limited usage     | [JIRA API Docs](https://developer.atlassian.com/cloud/jira/platform/rest/v3/intro/) |
| Trello API               | Manage Trello boards, lists, and cards.                  | 300 requests per 10 seconds   | OAuth 1.0 / API Key| Free                        | [Trello API Docs](https://developer.atlassian.com/cloud/trello/rest/api-group-actions/) |
| Asana API                | Manage tasks, projects, and workspaces in Asana.         | 150 requests per minute       | OAuth 2.0 / API Key| Free                        | [Asana API Docs](https://developers.asana.com/docs) |
| Slack API                | Integrate with Slack to send messages and manage channels. | Varies by method              | OAuth 2.0 / API Key| Free with limited usage     | [Slack API Docs](https://api.slack.com/) |
| Twilio API               | Send SMS, make calls, and manage communication workflows. | Varies by account             | API Key            | Free with limited usage     | [Twilio API Docs](https://www.twilio.com/docs/usage/api) |
| SendGrid API             | Send emails and manage email marketing campaigns.        | 40,000 requests per day       | API Key            | Free with limited usage     | [SendGrid API Docs](https://sendgrid.com/docs/API_Reference/index.html) |
| Mailgun API              | Send, receive, and track emails using Mailgun.           | 5,000 emails per month        | API Key            | Free with limited usage     | [Mailgun API Docs](https://documentation.mailgun.com/en/latest/api-intro.html) |
| Firebase API             | Access Firebase services including Firestore, Auth, and Realtime Database. | Varies by service            | API Key / OAuth 2.0| Free with limited usage     | [Firebase API Docs](https://firebase.google.com/docs/reference/rest/) |
| Heroku API               | Manage Heroku apps and resources programmatically.       | Varies by endpoint            | OAuth 2.0 / API Key| Free                        | [Heroku API Docs](https://devcenter.heroku.com/articles/platform-api-reference) |
| Azure DevOps API         | Access Azure DevOps services including Pipelines, Repos, and Boards. | 60 requests per minute        | OAuth 2.0 / API Key| Free                        | [Azure DevOps API Docs](https://learn.microsoft.com/en-us/rest/api/azure/devops/) |
| Jenkins API              | Manage Jenkins jobs, builds, and nodes.                  | No strict limits              | API Key            | Free                        | [Jenkins API Docs](https://www.jenkins.io/doc/book/using/remote-access-api/) |
| Netlify API              | Manage Netlify sites, builds, and deployments.           | 2,000 requests per hour       | OAuth 2.0 / API Key| Free                        | [Netlify API Docs](https://open-api.netlify.com/) |
| DigitalOcean API         | Manage DigitalOcean droplets, domains, and resources.    | 5,000 requests per hour       | OAuth 2.0 / API Key| Free                        | [DigitalOcean API Docs](https://docs.digitalocean.com/reference/api/api-reference/) |
| AWS SDK                  | Access AWS services including EC2, S3, and RDS programmatically. | Varies by service            | API Key            | Free with limited usage     | [AWS SDK Docs](https://aws.amazon.com/documentation/sdk/) |
| Google Cloud API         | Access Google Cloud services including Compute Engine, Cloud Storage, and BigQuery. | Varies by service            | API Key / OAuth 2.0| Free with limited usage     | [Google Cloud API Docs](https://cloud.google.com/apis) |
| Microsoft Graph API      | Access Microsoft 365 services including Outlook, OneDrive, and Teams. | 10,000 requests per 10 minutes | OAuth 2.0          | Free                        | [Microsoft Graph API Docs](https://learn.microsoft.com/en-us/graph/api/overview?view=graph-rest-1.0) |

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