domain: apis
2838 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| adamrushy/OpenAISwift A community-maintained Swift wrapper library around the OpenAI and ChatGPT HTTP APIs. It supports Swift Package Manager and CocoaPods, and … | 25 | 1703 | active |
| icebear0828/codex-proxy A lightweight local proxy service that exposes ChatGPT Codex Desktop's Responses API through standard OpenAI, Anthropic, Gemini, and Ollama… | 82 | 1697 | active |
| lquixada/cross-fetch cross-fetch is a universal WHATWG Fetch API implementation that works across Node.js, browsers, workers, and React Native. It can be used a… | 41 | 1695 | stable |
| cedar-policy/cedar Cedar is a purpose-built policy language and Rust implementation for writing and enforcing fine-grained authorization policies in applicati… | 95 | 1693 | stable |
| br-g/openf1 OpenF1 is a free, open-source API providing real-time and historical Formula 1 data, including lap timings, car telemetry, driver info, and… | 71 | 1692 | active |
| mattn/vim-gist A Vim plugin (vimscript) for creating, editing, listing, forking, starring, and deleting GitHub Gists directly from the editor. It supports… | 66 | 1690 | active |
| xCss/bing A web service that serves Bing's daily wallpaper images with a browsable gallery and a previously offered API for fetching wallpapers by da… | 56 | 1690 | active |
| openappsec/openappsec open-appsec is an open-source machine learning security engine that provides preemptive web application and API threat protection against O… | 99 | 1689 | active |
| mathiasbynens/punycode.js Punycode.js is a robust JavaScript library for converting between Punycode (ASCII) and Unicode strings, fully compliant with RFC 3492 and R… | 23 | 1689 | stable |
| AvdLee/appstoreconnect-swift-sdk A Swift SDK for interacting with Apple's App Store Connect API, with OpenAPI-generated endpoints and models covering all API requests. It h… | 95 | 1685 | active |
| fruitcake/laravel-cors A Laravel package that adds Cross-Origin Resource Sharing (CORS) headers support via middleware, handling pre-flight OPTIONS requests and c… | 10 | 6235 | maintenance |
| zoujingli/WeChatDeveloper WeChatDeveloper is a comprehensive PHP SDK for the WeChat ecosystem (Official Accounts, Mini Programs, WeCom) and payments (WeChat Pay V2/V… | 86 | 1681 | active |
| graphql-python/gql GQL is a GraphQL client library for Python supporting queries, mutations, and subscriptions over HTTP and websockets transports. It offers … | 73 | 1681 | stable |
| uriyyo/fastapi-pagination A Python library that adds pagination support to FastAPI applications. It provides utility functions and data models (like Page) to paginat… | 98 | 1680 | active |
| nodeshift/opossum Opossum is a Node.js circuit breaker library that wraps asynchronous functions (promises and callbacks) and monitors their execution, faili… | 96 | 1680 | active |
| wiremock/WireMock.Net WireMock.Net is a flexible .NET library for stubbing and mocking HTTP responses with advanced request matching and response templating, bas… | 94 | 1680 | active |
| michalmuskala/jason Jason is a fast, standards-compliant JSON parser and generator written in pure Elixir. It is the default JSON codec for many Elixir ecosyst… | 59 | 1680 | stable |
| medialize/URI.js URI.js is a JavaScript library for parsing, manipulating, and normalizing URLs with a fluent, jQuery-style chaining API. It supports query … | 23 | 6229 | maintenance |
| eolinker/apinto Apinto is a high-performance, cloud-native API gateway written in Go with a modular, pluggable architecture. It handles dynamic routing, lo… | 86 | 1676 | active |
| bazaarvoice/jolt Jolt is a Java library for JSON-to-JSON transformation where the transform specification is itself a JSON document. It provides chained sto… | 66 | 1675 | stable |
| durable-streams/durable-streams Durable Streams is a protocol and tooling for persistent, addressable, real-time data streams over HTTP, with offset-based resumability, ca… | 74 | 1674 | active |
| Project Fluent Fluent is a localization system whose FTL syntax lets translators write natural-sounding, asymmetric translations with locale-specific logi… | 56 | 1674 | stable |
| atlassian-api/atlassian-python-api A Python library wrapping the official REST APIs of Atlassian products such as Jira, Confluence, Bitbucket, Bamboo, Crowd, and Service Desk… | 99 | 1670 | active |
| earthboundkid/requests A Go library providing a fluent, declarative builder API for making HTTP client requests, wrapping net/http to reduce boilerplate. It inclu… | 87 | 1669 | stable |
| ccxt/node-binance-api An asynchronous Node.js library providing a simple wrapper around the Binance cryptocurrency exchange REST and WebSocket APIs. It lets deve… | 94 | 1665 | active |
| robsontenorio/vue-api-query A JavaScript library for Vue and Nuxt that provides an elegant, chainable query builder for constructing REST API requests. It lets develop… | 29 | 1663 | stable |
| NeteaseCloudMusicApiEnhanced/api-enhanced A Node.js API service providing comprehensive access to NetEase Cloud Music (网易云音乐) endpoints, a half-refactored and enhanced fork of the p… | 84 | 1661 | active |
| Rango Exchange Rango Exchange's TypeScript SDK for integrating cross-chain swap and bridge aggregation into applications. It provides both a basic single-… | 92 | 1660 | active |
| OpenFunction/OpenFunction OpenFunction is a cloud-native, open-source Function-as-a-Service (FaaS) platform built on Kubernetes that lets developers deploy business … | 23 | 1658 | active |
| dj-bolt/django-bolt Django-Bolt is a Python web framework that layers a Rust (Actix Web + Tokio) HTTP server and msgspec-based typed async handlers on top of D… | 80 | 1657 | active |
| bufbuild/protobuf-es Protobuf-ES is a Protocol Buffers runtime and protoc plugin for JavaScript and TypeScript, generating idiomatic plain-object messages with … | 98 | 1655 | active |
| node-opcua/node-opcua node-opcua is a full OPC UA (IEC 62541) protocol stack for Node.js and the browser, written in TypeScript. It provides client, server, disc… | 99 | 1654 | stable |
| Eventyay Eventyay (Open Event) is an open-source event management platform consisting of a Python API server, web frontend, and mobile apps for orga… | 77 | 1654 | active |
| hoangvvo/next-connect next-connect is a lightweight, promise-based method routing and middleware layer for Next.js API routes, Edge routes, Middleware, App Route… | 23 | 1650 | stable |
| itteco/iframely Iframely is a self-hosted oEmbed proxy and URL metadata service that takes any URL and returns rich media embed codes and page metadata. It… | 67 | 1649 | active |
| lelylan/simple-oauth2 simple-oauth2 is a Node.js client library for the OAuth 2.0 authorization framework. It supports the authorization code, resource owner pas… | 32 | 1645 | active |
| voxpupuli/json-schema A Ruby library for validating JSON data against JSON Schema documents, supporting Draft 6 with legacy support for Drafts 1-4. It provides s… | 82 | 1643 | active |
| NuGet NuGet Gallery is the open-source ASP.NET web application that powers nuget.org, the central package repository for the .NET ecosystem. It i… | 67 | 1642 | active |
| monoscope-tech/monoscope Monoscope is an open-source observability platform for ingesting and exploring logs, traces, and metrics stored in your own S3-compatible b… | 98 | 1639 | active |
| cloudfoundry/uaa Cloud Foundry's User Account and Authentication (UAA) server, a multi-tenant identity management service that acts as an OAuth2 provider an… | 99 | 1638 | active |
| leonardsellem/n8n-mcp-server A Model Context Protocol (MCP) server that lets AI assistants interact with n8n workflow automation instances through natural language. It … | 33 | 1637 | active |
| twilio/twilio-php The official Twilio PHP SDK for communicating with the Twilio REST API and generating TwiML. It lets PHP applications send SMS, make calls,… | 98 | 1635 | stable |
| fabien0102/ts-to-zod ts-to-zod is a CLI tool that generates Zod validation schemas from TypeScript types and interfaces. It verifies that generated schemas are … | 80 | 1635 | active |
| tomas/needle Needle is a lean, streamable HTTP client library for Node.js with only two real dependencies. It supports callbacks, promises, and streams,… | 63 | 1634 | active |
| Hommy-master/capcut-mate An open-source FastAPI-based automation toolkit that generates and manages CapCut (Jianying) draft files via a RESTful API, exposing video … | 80 | 1633 | active |
| storj/drpc drpc is a lightweight, drop-in replacement for gRPC written in Go, with a small dependency footprint and a fast custom wire format. It is t… | 82 | 1630 | active |
| SendGrid Official Twilio SendGrid API client libraries for sending email and calling the SendGrid Web API v3, maintained as multi-language monorepos… | 77 | 1630 | active |
| OpenDota OpenDota is an open-source Dota 2 data platform that provides a REST API and web UI for match and player statistics. It ingests data from V… | 76 | 1627 | active |
| delvedor/find-my-way find-my-way is a high-performance HTTP router for Node.js built on a radix tree (compact prefix tree). It is framework independent and supp… | 94 | 1625 | stable |
| xinliangnote/go-gin-api A modular API framework built on the Gin web framework for Go, bundling common features like CORS, JWT auth, zap logging, Prometheus metric… | 23 | 5975 | maintenance |
| andygrunwald/go-jira go-jira is a Go client library for the Atlassian Jira REST API, supporting authentication (Basic, OAuth, session cookie, bearer/PAT), issue… | 80 | 1619 | active |
| apollographql/graphql-subscriptions A small TypeScript library that implements GraphQL subscriptions by wiring a PubSub system (e.g., EventEmitter or Redis) into GraphQL resol… | 23 | 1617 | stable |
| Permify/permify Permify is an open-source authorization-as-a-service inspired by Google Zanzibar, providing a permission database and policy decision point… | 95 | 5940 | maintenance |
| JohnnyCrazy/SpotifyAPI-NET SpotifyAPI-NET is an open-source C#/.NET client library for the Spotify Web API, providing fully typed requests and responses for over 74 e… | 82 | 1613 | active |
| mrtazz/restclient-cpp A simple C++ REST client library that wraps libcurl for making HTTP requests. It offers both a static-method API for quick calls and a conf… | 32 | 1613 | active |
| springfox/springfox Springfox is a Java library that automatically generates JSON API documentation (Swagger/OpenAPI) for APIs built with the Spring framework,… | 23 | 5930 | maintenance |
| asteasolutions/zod-to-openapi A TypeScript library that generates OpenAPI (Swagger) documentation directly from Zod schemas, eliminating duplication between validation c… | 94 | 1611 | active |
| vercel-labs/emulate emulate is a zero-config CLI and programmatic library that runs stateful, production-fidelity local replacements for third-party APIs like … | 81 | 1609 | active |
| sporkmonger/addressable Addressable is a Ruby library providing an alternative, more flexible URI implementation than Ruby's standard library, with heuristic parsi… | 72 | 1609 | stable |
| webpy/webpy web.py is a minimalist Python web framework that provides URL routing, request handling, templating, forms, sessions, and database access w… | 81 | 5921 | maintenance |
| microsoft/OpenAPI.NET OpenAPI.NET is a .NET SDK providing an object model for OpenAPI documents, with readers and writers for OpenAPI JSON and YAML in V2 and V3 … | 95 | 1608 | active |
| haibbo/cf-openai-azure-proxy A Cloudflare Worker script that proxies OpenAI-compatible API requests to Azure OpenAI Service, letting standard OpenAI clients use Azure d… | 21 | 1608 | active |
| pgjones/hypercorn Hypercorn is an ASGI and WSGI web server for Python based on sans-io hyper libraries and inspired by Gunicorn. It supports HTTP/1, HTTP/2, … | 55 | 1601 | active |
| phalapi/phalapi PhalApi (π framework) is a lightweight open-source PHP framework focused on API/interface service development, supporting HTTP, SOAP, and R… | 75 | 1599 | active |
| lets-blade/blade Blade is a lightweight, high-performance MVC web framework for Java 8 built on Netty 4, with RESTful routing, a built-in template engine, a… | 60 | 5875 | maintenance |
| tailflow/laravel-orion Orion for Laravel is a PHP library that generates fully featured REST APIs from Eloquent models and relationships with minimal controller c… | 64 | 1598 | active |
| nyaruka/phonenumbers A Go port of Google's libphonenumber library for parsing, validating, and formatting international phone numbers. It tracks the Java refere… | 97 | 1597 | active |
| codeaholicguy/ai-devkit AI DevKit is a local-first control plane for AI coding agents such as Claude Code, Codex CLI, Gemini CLI, opencode, and Cursor. It provides… | 80 | 1597 | active |
| cuducos/minha-receita Minha Receita is an open-source project that consolidates Brazilian Federal Revenue (Receita Federal) CNPJ company data from scattered CSV … | 10 | 1597 | active |
| throttled/throttled Throttled is a Go library that implements rate limiting using the generic cell rate algorithm (GCRA) to limit access to resources such as H… | 62 | 1595 | stable |
| OneSignal/react-native-onesignal The official OneSignal SDK plugin for React Native, enabling integration of push notifications, in-app messages, SMS, and email engagement … | 98 | 1593 | active |
| spring-projects/spring-graphql Spring for GraphQL is the official Spring integration for GraphQL Java, providing support for building GraphQL applications on the Spring s… | 95 | 1593 | stable |
| karlseguin/http.zig http.zig is an HTTP/1.1 server library written in Zig, providing routing, middleware, WebSockets, and server-sent events. It is designed as… | 75 | 1591 | active |
| iBUHub/AIStudioToAPI A self-hosted proxy service that wraps the Google AI Studio Build web interface into OpenAI, Gemini, and Anthropic compatible APIs using br… | 82 | 1589 | active |
| datagouv/datagouv-mcp The official Model Context Protocol (MCP) server for data.gouv.fr, the French national open data platform. It lets AI chatbots like Claude,… | 78 | 1587 | active |
| koreainvestment/open-trading-api Official sample code repository from Korea Investment & Securities for their Open Trading API (KIS Developers), providing Python examples f… | 77 | 1584 | active |
| TongchengOpenSource/smart-doc Smart-doc is a Java API documentation generator that analyzes interface source code to produce docs for REST APIs, WebSocket, Dubbo RPC, an… | 10 | 1584 | active |
| facebook/facebook-python-business-sdk The official Python SDK for Meta's Business SDK, bundling the Marketing API together with Pages, Business Manager, and Instagram APIs into … | 99 | 1583 | active |
| RicoSuter/NJsonSchema NJsonSchema is a .NET library for reading, generating, and validating JSON Schema draft v4+ documents. It can generate schemas from .NET cl… | 83 | 1583 | stable |
| scanapi/scanapi ScanAPI is a Python CLI tool that runs automated integration tests against REST APIs using declarative YAML/JSON specifications. It hits de… | 98 | 1579 | active |
| solana-foundation/solana-go A Go SDK library and RPC client for the Solana blockchain, providing interfaces to Solana's JSON RPC and WebSocket APIs. It supports key ma… | 99 | 1577 | active |
| simplepie/simplepie SimplePie is a fast, easy-to-use PHP library for fetching, caching, and parsing RSS and Atom syndication feeds. It normalizes feed data acr… | 66 | 1577 | active |
| unosquare/embedio EmbedIO is a tiny, cross-platform, module-based web server library for .NET Framework and .NET Core, written entirely in C#. It supports RE… | 10 | 1577 | stable |
| theopenco/llmgateway LLM Gateway is an open-source API gateway for large language models that sits between applications and 40+ LLM providers (OpenAI, Anthropic… | 86 | 1576 | active |
| zmb3/spotify A Go client library wrapping the Spotify Web API, aiming to cover every endpoint in the API reference. It includes an Authenticator type ha… | 63 | 1574 | active |
| cweiske/jsonmapper A PHP library that maps nested JSON structures onto PHP model classes using type declarations and docblock annotations. It converts JSON AP… | 73 | 1573 | stable |
| linear/linear The official monorepo for Linear's API tooling, containing a typed TypeScript SDK for the Linear GraphQL API plus import tooling and GraphQ… | 95 | 1568 | active |
| keygen-sh/keygen-api Keygen is a fair source software licensing and distribution API that lets developers add license key validation, entitlements, device activ… | 86 | 1568 | active |
| benavlabs/fastcrud FastCRUD is a Python library for FastAPI that provides fully async CRUD operations built on SQLAlchemy 2.0 (or SQLModel) with Pydantic sche… | 85 | 1567 | active |
| OWASP/crAPI crAPI (completely ridiculous API) is an intentionally vulnerable web application built by OWASP to demonstrate the OWASP API Security Top 1… | 63 | 1566 | active |
| trentm/json A single-file Node.js CLI tool called '' for parsing, validating, filtering, and pretty-printing JSON on the Unix command line. It supports… | 32 | 1562 | stable |
| VoidenHQ/voiden Voiden is an offline, Git-native API workspace built with Electron and TypeScript that lets developers design, test, and document APIs in p… | 86 | 1559 | active |
| jshttp/http-errors http-errors is a Node.js library for creating HTTP error objects with status codes, messages, and custom properties. It integrates easily w… | 67 | 1559 | stable |
| developit/unfetch A tiny (~500 byte gzipped) fetch polyfill/ponyfill for browsers, implemented on top of XMLHttpRequest. It provides a minimal subset of the … | 23 | 5699 | maintenance |
| kyma-project/kyma Kyma is an opinionated set of Kubernetes-based modular building blocks for developing and running enterprise-grade cloud-native application… | 67 | 1557 | active |
| badgen/badgen.net Badgen is a fast badge generating service that produces SVG badges for READMEs and websites, hosted at badgen.net. It is built on the badge… | 66 | 1557 | active |
| msgpack/msgpack-javascript A TypeScript/JavaScript implementation of MessagePack, a compact binary serialization format, serving as the reference implementation for J… | 83 | 1556 | stable |
| Protovalidate Protovalidate is a semantic validation library for Protocol Buffers that lets developers define validation rules (standard constraints plus… | 94 | 1552 | active |
| chibisov/drf-extensions DRF-extensions is a collection of custom extensions for Django REST Framework, providing mixins, routers, caching, conditional requests, ne… | 66 | 1552 | active |
| littledivy/mimic mimic is a Python tool that captures traffic from mobile or web apps via mitmproxy, extracts authentication material, and uses AI to genera… | 55 | 1550 | active |