domain: apis
2838 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| FriendsOfSymfony/FOSOAuthServerBundle FOSOAuthServerBundle is a Symfony bundle that provides server-side OAuth2 capabilities, letting Symfony applications act as OAuth2 authoriz… | 23 | 1078 | maintenance |
| daviddesberg/PHPoAuthLib PHPoAuthLib is a PHP client library providing OAuth 1.x and OAuth 2.0 support with prebuilt service implementations for dozens of providers… | 23 | 1077 | maintenance |
| bradleyboy/tuql tuql is a Node.js CLI tool that automatically spins up a GraphQL server from a SQLite database or SQL dump file. It infers models and relat… | 32 | 1076 | maintenance |
| nijikokun/generate-schema A JavaScript library and CLI that converts JSON objects into schema definitions for MySQL, JSON Schema, Mongoose, ClickHouse, Google BigQue… | 23 | 1073 | maintenance |
| zalando/problem-spring-web A Java library that produces RFC 7807/9457 application/problem+ error responses from Spring MVC and Spring WebFlux applications. It provide… | 56 | 1070 | maintenance |
| microsoftgraph/microsoft-graph-toolkit A collection of framework-agnostic web components and authentication providers for accessing Microsoft Graph, including UI components like … | 88 | 1069 | maintenance |
| mulesoft/api-designer API Designer is a standalone or embeddable web editor for authoring RAML (RESTful API Modeling Language) specifications, written in JavaScr… | 10 | 1069 | maintenance |
| Xchat1/cursor2api-go A Go service that converts Cursor's web interface into an OpenAI chat/completions-compatible API, exposing models like gemini-3-flash with … | 51 | 1065 | maintenance |
| wintests/pytestDemo A Python API automation testing framework combining Requests, Pytest, YAML-managed test data, and Allure reports. It layers HTTP interfaces… | 32 | 1065 | maintenance |
| graphql/swapi-graphql A GraphQL schema and server that wraps the Star Wars API (SWAPI), exposing its data through a GraphQL endpoint. It is the official example … | 70 | 1062 | maintenance |
| borball/weixin-sdk A Java SDK wrapping the WeChat public platform (subscription/service accounts, WeChat Work, mini programs), WeChat Open Platform, and WeCha… | 32 | 1057 | maintenance |
| skyscreamer/JSONassert A Java library for writing JSON unit tests with minimal code, comparing JSON strings by logical structure and data. It integrates with JUni… | 23 | 1056 | maintenance |
| DuendeArchive/IdentityModel IdentityModel is a .NET Standard helper library for claims-based identity, OAuth 2.0, and OpenID Connect. It provides request/response obje… | 10 | 1056 | maintenance |
| trumail/trumail Trumail is a free, open-source email verification system written in Go that checks address deliverability via SMTP handshakes with mail ser… | 10 | 1052 | maintenance |
| aliyun/aliyun-openapi-python-sdk The Alibaba Cloud (Aliyun) Python SDK V1.0, providing Python clients for Alibaba Cloud OpenAPI services. It has entered basic security main… | 76 | 1044 | maintenance |
| dylang/node-rss node-rss is a Node.js library for generating RSS 2.0 feeds programmatically. It supports feed and item metadata, enclosures, GeoRSS, and cu… | 75 | 1042 | maintenance |
| requests/toolbelt A collection of utility classes and functions that extend the python-requests HTTP library, including a streaming multipart/form-data encod… | 32 | 1038 | maintenance |
| maanavshah/stock-market-india A Node.js/Express API service that fetches and serves stock market data from India's NSE and BSE exchanges. It exposes REST endpoints for m… | 32 | 1038 | maintenance |
| unshiftio/url-parse A small-footprint URL parser library for JavaScript that works in both Node.js and browser environments, exposing both Node's url-style API… | 32 | 1034 | maintenance |
| panoratech/Panora Panora is an open-source unified API / integration engine that lets applications connect to multiple CRM and third-party SaaS platforms thr… | 10 | 1034 | maintenance |
| alexa-js/alexa-app A Node.js framework that simplifies building Alexa skills (voice applications) for Amazon Echo devices. It parses HTTP JSON requests from t… | 32 | 1032 | maintenance |
| not-an-aardvark/snoowrap snoowrap is a fully-featured JavaScript wrapper for the reddit API, providing a simple promise-based interface to every reddit endpoint. It… | 10 | 1031 | maintenance |
| tpyo/amazon-s3-php-class A standalone PHP library providing a REST client for Amazon S3 object storage using CURL. It supports object and bucket operations such as … | 26 | 1026 | maintenance |
| awslabs/multi-model-server Multi Model Server (MMS) is a tool for serving deep learning model inference over HTTP endpoints, supporting models from any ML/DL framewor… | 10 | 1024 | maintenance |
| 15Dkatz/official_joke_api A free REST API serving random jokes in JSON format, with endpoints for random jokes, jokes by type (e.g., programming), jokes by ID, and b… | 32 | 1022 | maintenance |
| sumory/lor Lor is a fast, minimalist web framework for Lua built on OpenResty, with Sinatra-style routing and an Express-like API. It includes middlew… | 23 | 1018 | maintenance |
| i-am-bee/acp The Agent Communication Protocol (ACP) is an open protocol with Python and TypeScript SDKs for enabling AI agents built on different framew… | 10 | 1018 | maintenance |
| Leslin/thinkphp5-restfulapi A lightweight RESTful API starter built on ThinkPHP 5.1, providing token-based authentication (OAuth2-style access/refresh tokens), API ver… | 23 | 1014 | maintenance |
| revertinc/revert Revert is an open-source unified API framework that makes it easy to build product integrations with third-party APIs like CRMs (HubSpot, S… | 28 | 1012 | maintenance |
| overtrue/api.yike.io The backend API source code for yike.io, a Chinese developer community forum, built on Laravel 5 with Laravel Passport for OAuth authentica… | 10 | 1008 | maintenance |
| cloudera/livy Livy is an open-source REST service for interacting with Apache Spark remotely, supporting interactive Scala, Python, and R sessions as wel… | 32 | 1007 | maintenance |
| delba/JASON JASON is a fast JSON deserialization library written in Swift, offering subscript-based parsing and type casting with a clean API. It suppo… | 23 | 1006 | maintenance |
| nytimes/openapi2proto A Go CLI tool that converts OpenAPI/Swagger specifications (YAML or JSON) into Protobuf v3 schemas and gRPC service definitions. It support… | 23 | 1002 | maintenance |
| camsong/fetch-jsonp A small JavaScript library that lets you make JSONP requests using the same promise-based API as the native Fetch API. It provides a global… | 65 | 1001 | maintenance |
| JJTech0130/pypush A Python library for interacting with Apple's private APIs, originally a proof-of-concept iMessage reverse-engineering project. It currentl… | 65 | 3768 | experimental |
| bknd-io/bknd bknd is a lightweight, batteries-included backend-as-a-service (Firebase/Supabase alternative) providing data management, authentication, m… | 66 | 3751 | experimental |
| motiful/cc-gateway CC Gateway is a self-hosted reverse proxy that sits between Claude Code clients and the Anthropic API, normalizing device fingerprints, tel… | 48 | 3017 | experimental |
| LukeMathWalker/pavex Pavex is a Rust framework for building APIs and web applications, aiming to combine the productivity of frameworks like Rails or ASP.NET Co… | 76 | 2069 | experimental |
| punkpeye/mcp-remote A Node.js CLI proxy that lets MCP clients which only support local stdio servers connect to remote MCP servers over HTTP/SSE, including OAu… | 87 | 1562 | experimental |
| APIs-guru/graphql-lodash A TypeScript library that embeds lodash-style data transformation directives (@_) directly inside GraphQL queries, returning a transform fu… | 32 | 1232 | experimental |
| nkzw-tech/fate fate is a modern, type-safe data client for React (with a Vue client also available) inspired by Relay and GraphQL. It combines co-located … | 80 | 1070 | experimental |
| getezy/ezy Ezy is a fully-featured desktop GUI client for gRPC and gRPC-Web, supporting unary calls, streaming, metadata, and TLS. It offers tabs, key… | 23 | 1039 | experimental |
| davidfowl/Todos A collection of todo list backend API implementations written in C# for .NET Core. It serves as reference sample code demonstrating differe… | 32 | 1036 | experimental |
| justrach/turboAPI TurboAPI is a FastAPI-compatible Python web framework whose HTTP layer is implemented in Zig, offering drop-in migration by changing a sing… | 87 | 1002 | experimental |
| slatedocs/slate Slate is a static documentation generator that produces beautiful, three-column API documentation sites from Markdown files. Originally bui… | 10 | 36037 | abandoned |
| Request Request is a simplified HTTP request client for Node.js supporting HTTPS, redirects, streaming, forms, OAuth signing, and proxies, with pro… | 32 | 25512 | abandoned |
| transitive-bullshit/agentic Agentic is a marketplace and hosted MCP gateway that turns any MCP server or OpenAPI service into a paid, production-ready MCP product with… | 10 | 18116 | abandoned |
| bloomrpc/bloomrpc BloomRPC was a desktop GUI client for exploring and testing gRPC services, inspired by Postman and GraphQL Playground. The project was arch… | 10 | 8984 | abandoned |
| graphql/graphql-playground GraphQL Playground is a graphical IDE for exploring and testing GraphQL APIs, featuring autocompletion, interactive docs, and real-time sub… | 10 | 8829 | abandoned |
| aws/aws-sdk-go The AWS SDK for Go v1, providing Go clients for AWS services such as S3, EC2, and more. It reached end-of-support on July 31, 2025 and user… | 10 | 8675 | abandoned |
| microsoft/cpprestsdk The C++ REST SDK (Casablanca) is a Microsoft library for cloud-based client-server communication in native C++ using a modern asynchronous … | 10 | 8259 | abandoned |
| mitchellh/mapstructure mapstructure is a Go library for decoding generic map values (e.g. map[string]interface{}) into native Go structs and vice versa, with help… | 10 | 8025 | abandoned |
| ipkn/crow Crow is a fast, header-only C++ micro web framework inspired by Python Flask, offering Flask-like routing, built-in JSON handling, Mustache… | 23 | 7627 | abandoned |
| aws/aws-sdk-js AWS SDK for JavaScript version 2, providing access to AWS services from Node.js and the browser. It reached end-of-support on September 8, … | 10 | 7604 | abandoned |
| Urinx/WeixinBot A Python library implementing the Web WeChat (web.weixin.qq.com) API, including a terminal-based WeChat client and a bot with auto-reply ca… | 32 | 7405 | abandoned |
| NancyFx/Nancy Nancy is a lightweight, low-ceremony web framework for building HTTP-based services on .NET Framework/Core and Mono. It provides a simple D… | 10 | 7094 | abandoned |
| boto/boto Boto is the original Python SDK providing interfaces to Amazon Web Services such as EC2, S3, DynamoDB, and SQS. It is deprecated and no lon… | 10 | 6417 | abandoned |
| graphql/express-graphql express-graphql is the original official reference implementation of a GraphQL HTTP server middleware for Express (and Connect/Restify). It… | 10 | 6259 | abandoned |
| johnezang/JSONKit JSONKit is a very high performance Objective-C JSON parsing and serializing library for Mac OS X and iOS. It predates and outperformed NSJS… | 32 | 6176 | abandoned |
| pokeb/asi-http-request ASIHTTPRequest is an Objective-C wrapper around Apple's CFNetwork API that simplifies making HTTP requests on Mac OS X and iOS. It supports… | 32 | 5726 | abandoned |
| gogo/protobuf GoGoProtobuf is a Go library and protoc plugin that extends the official Go protobuf implementation with extra code-generation 'gadgets' fo… | 23 | 5664 | abandoned |
| hlmd/Postman-cn A Chinese localization package for the Postman API client that patches the app's resources directory to translate the UI into Chinese. The … | 10 | 5646 | abandoned |
| vibora-io/vibora Vibora is a fast, asynchronous Python 3.6+ HTTP client/server web framework with features like routing, sessions, websockets, caching, and … | 10 | 5583 | abandoned |
| aspnet/Mvc ASP.NET Core MVC is a model-view-controller framework for building dynamic web sites and HTTP services with clean separation of concerns, m… | 10 | 5567 | abandoned |
| Postcatlab/postcat Postcat is an open-source, cross-platform API development and testing tool supporting REST and WebSocket protocols, with API design, docume… | 54 | 5542 | abandoned |
| beyondcode/laravel-websockets A Laravel package that provides a self-hosted WebSocket server with full Pusher API compatibility, started via a single artisan command. It… | 10 | 5073 | abandoned |
| Netflix/fast_jsonapi A fast JSON:API serializer for Ruby objects, originally developed by Netflix, supporting attributes, relationships, compound documents, and… | 23 | 5032 | abandoned |
| deployd/deployd Deployd is a Node.js toolkit for building realtime REST APIs for web and mobile apps using configurable Resources like Collections, managed… | 23 | 4941 | abandoned |
| fiorix/freegeoip freegeoip is an IP geolocation web server written in Go that provides a REST API returning country, region, city, and other location data f… | 23 | 4934 | abandoned |
| Azure/autorest AutoRest is an OpenAPI (Swagger) specification code generator that produces client libraries for RESTful web services in languages like C#,… | 74 | 4798 | abandoned |
| spring-attic/spring-security-oauth A Spring Security library providing OAuth 1(a) and OAuth 2 support for both consumers and providers in Spring web applications. It was arch… | 10 | 4690 | abandoned |
| simplewebrtc/SimpleWebRTC SimpleWebRTC is a JavaScript library that wraps the WebRTC API to make building peer-to-peer video, audio, and data communication in the br… | 23 | 4686 | abandoned |
| mikeal/r2 r2 is a promise-based HTTP client library for Node.js and browsers, built on the Fetch API as a spiritual successor to the popular 'request… | 23 | 4404 | abandoned |
| Camunda Platform 7 Camunda Platform 7 is a Java-based BPMN 2.0 process engine framework for workflow and decision automation, embeddable in any JVM applicatio… | 10 | 4270 | abandoned |
| aws/aws-sdk-java The official AWS SDK for Java 1.x, providing Java APIs for AWS services such as S3, EC2, and DynamoDB, including credential management, ret… | 66 | 4200 | abandoned |
| Nemo2011/bilibili-api A Python SDK for programmatically accessing Bilibili (bilibili.com), including video data, danmaku comments, user info, and login. The repo… | 10 | 4188 | abandoned |
| waylaidwanderer/node-chatgpt-api A Node.js client implementation for ChatGPT and Bing AI, usable as an npm module, a REST API server, or a CLI app. It wraps the official Op… | 22 | 4152 | abandoned |
| swagger-api/swagger-node A Node.js module and CLI for designing, building, and testing Swagger 2.0-compliant REST APIs, integrating with Express, Hapi, Restify, and… | 10 | 3945 | abandoned |
| twitter-archive/diffy Diffy is a proxy-based differential testing tool from Twitter that multicasts incoming requests to a candidate service and two known-good s… | 10 | 3811 | abandoned |
| samdenty/gqless gqless is a TypeScript GraphQL client that lets you query GraphQL APIs by simply accessing typed objects, generating queries automatically … | 23 | 3656 | abandoned |
| christianselig/apollo-backend The server backend for the Apollo iOS Reddit client, written in Go, which checked user notifications and managed subreddit watchers via aut… | 10 | 3656 | abandoned |
| 100apps/openshare OpenShare is a lightweight Objective-C iOS library that replaces official social platform SDKs by directly communicating with mobile client… | 32 | 3617 | abandoned |
| silexphp/Silex Silex is a PHP micro-framework for building websites and simple web applications, built on top of Symfony components with a lightweight, Pi… | 10 | 3530 | abandoned |
| nylas/sync-engine The Nylas Sync Engine is an open-source email sync platform that exposes a RESTful API on top of IMAP/SMTP, letting applications read and s… | 10 | 3496 | abandoned |
| bear/python-twitter A pure Python wrapper library around the Twitter API, making it easy for Python programmers to interact with Twitter's web services and dat… | 10 | 3404 | abandoned |
| ferdikoomen/openapi-typescript-codegen A Node.js library and CLI that generates TypeScript or JavaScript API clients from OpenAPI (Swagger) v2/v3 specifications, supporting fetch… | 86 | 3368 | abandoned |
| sensiolabs/SensioFrameworkExtraBundle A Symfony FrameworkBundle extension that adds annotation-based configuration for Controller classes, covering routing, request converters, … | 10 | 3351 | abandoned |
| Facebook Platform SDKs A collection of archived Facebook Platform SDKs (PHP, JavaScript, Swift, React Native) for integrating Facebook login and Graph API calls i… | 10 | 3314 | abandoned |
| erdewit/ib_insync A Python library providing a sync and asyncio-based framework for the Interactive Brokers Trader Workstation API, making it easy to connect… | 10 | 3284 | abandoned |
| facebookarchive/php-graph-sdk The official Facebook SDK for PHP (v5), providing a native interface to the Facebook Graph API and Facebook Login from PHP applications. Th… | 10 | 3210 | abandoned |
| eolinker/goku_lite Goku API Gateway (goku_lite) is a high-performance HTTP API gateway written in pure Go, offering dynamic routing, service orchestration, mu… | 23 | 3131 | abandoned |
| Instagram API A Python 2/3 client library for the Instagram REST and Search APIs, supporting OAuth2 authentication, media access, and real-time subscript… | 10 | 3071 | abandoned |
| ExpressGateway/express-gateway Express Gateway is a microservices API gateway built on Node.js and Express.js that secures, proxies, and manages APIs using Express middle… | 23 | 3031 | abandoned |
| MKSG-MugunthKumar/MKNetworkKit MKNetworkKit is an Objective-C networking framework for iOS 8+ built on NSURLSession, providing built-in authentication and HTTP 1.1 cachin… | 10 | 3030 | abandoned |
| ded/reqwest Reqwest is a small browser-side JavaScript library that wraps asynchronous HTTP requests (AJAX) with support for XMLHttpRequest, JSONP, COR… | 32 | 2921 | abandoned |
| javaee/jersey This is the archived original repository for Jersey, the reference implementation of JAX-RS for building RESTful web services in Java. The … | 10 | 2843 | abandoned |
| noirbizarre/flask-restplus Flask-RESTPlus is a Flask extension for quickly building REST APIs with automatic Swagger/OpenAPI documentation. The project is officially … | 32 | 2731 | abandoned |
| chanjarster/weixin-java-tools A Java SDK for developing WeChat Official Account (subscription/service) and WeChat Enterprise (WeChat Work) applications, distributed via … | 10 | 2729 | abandoned |
| venomous0x/WhatsAPI WhatsAPI is an unofficial, reverse-engineered interface library for WhatsApp Messenger that allowed developers to send and receive messages… | 32 | 2618 | abandoned |
| marcgibbons/django-rest-swagger A Swagger/OpenAPI documentation generator for Django REST Framework that renders OpenAPI JSON schemas and an interactive Swagger UI from DR… | 10 | 2569 | abandoned |