domain: apis
2838 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| 7836246/cursor2api A self-hosted proxy service that converts Cursor's free documentation-page AI chat endpoint into OpenAI Chat Completions and Anthropic Mess… | 69 | 1885 | active |
| googleapis/google-auth-library-nodejs Google's officially supported Node.js client library for OAuth 2.0 authentication and authorization with Google APIs. It supports Applicati… | 10 | 1883 | stable |
| parse-community/Parse-SDK-Android The official Android SDK for the Parse Platform, providing access to Parse Server backends from Android apps. It offers data storage, user … | 68 | 1879 | active |
| hummingbird-project/hummingbird Hummingbird is a lightweight, flexible web application framework and HTTP server written in Swift, built on top of SwiftNIO. It provides ro… | 98 | 1878 | active |
| camlworks/dream Dream is a tidy, feature-complete web framework for OCaml and ReasonML with a flat, one-module API. It supports WebSockets, GraphQL, HTTP/2… | 60 | 1878 | active |
| jiujiu532/grok2api A self-hosted Python/FastAPI gateway that exposes grok.com and console.x.ai chat, image, and video capabilities through OpenAI- and Anthrop… | 55 | 1878 | active |
| jchambers/pushy Pushy is a Java library for sending push notifications via Apple's HTTP/2-based APNs protocol to iOS, macOS, and Safari devices. It support… | 83 | 1877 | stable |
| tdegrunt/jsonschema A fast and simple JSON Schema validator for JavaScript and Node.js, supporting JSON Schema versions through draft-07. It validates objects … | 69 | 1875 | stable |
| zitadel/oidc A Go library implementing both the OpenID Connect client (Relying Party) and server (OpenID Provider) sides of the OIDC/OAuth2 standards, c… | 98 | 1872 | active |
| microsoft/cppwinrt C++/WinRT is a standard C++17 language projection for Windows Runtime (WinRT) APIs, implemented as a header-file-based library. It lets dev… | 95 | 1872 | stable |
| HiThink-Tech/Financial-API Official Tonghuashun (HiThink) A-share financial data service offering real-time and historical stock quotes, financial statements, valuati… | 80 | 1871 | active |
| unkn0wn-root/resterm Resterm is a terminal-native API client and workbench for REST, GraphQL, gRPC, WebSocket and SSE, built around plain .http/.rest files that… | 80 | 1871 | active |
| balazsbotond/urlcat urlcat is a tiny JavaScript/TypeScript library for building URLs conveniently and correctly, handling path joining, query string constructi… | 67 | 1871 | stable |
| fudiwei/DotNetCore.SKIT.FlurlHttpClient.Wechat A comprehensive C# SDK for WeChat HTTP APIs built on Flurl.Http, covering the official account platform, open platform, merchant platform (… | 76 | 1869 | active |
| long2ice/fastapi-cache fastapi-cache is a Python library that adds caching to FastAPI endpoints and function results via a simple @cache decorator. It supports Re… | 36 | 1868 | active |
| stepci/stepci Step CI is an open-source, language-agnostic API quality assurance framework configured via YAML, JSON, or JavaScript. It tests REST, Graph… | 23 | 1868 | active |
| Aleph-Alpha/ts-rs ts-rs is a Rust library with a derive macro that generates TypeScript type declarations from Rust structs and enums. It keeps backend and f… | 79 | 1864 | stable |
| walmartlabs/lacinia Lacinia is a pure Clojure implementation of the GraphQL specification, serving as a backend-agnostic GraphQL query execution engine. It sup… | 70 | 1862 | active |
| helallao/perplexity-ai An unofficial Python wrapper for Perplexity.ai that reverse-engineers the web interface, supporting sync and async APIs, streaming response… | 73 | 1858 | active |
| inlife/nexrender Nexrender is an open-source, data-driven render automation framework for Adobe After Effects, built on Node.js. It lets you define render j… | 89 | 1854 | active |
| tikv/grpc-rs gRPC-rs (published as grpcio) is a Rust wrapper around the gRPC Core C library, providing asynchronous client and server RPC built on futur… | 63 | 1852 | active |
| Azure/azure-sdk-for-go The official Azure SDK for Go, providing client and management modules for interacting with Azure services from Go applications. It include… | 95 | 1850 | active |
| zws-im/zws ZWS (Zero Width Shortener) is a self-hostable URL shortener that encodes link identifiers using invisible zero-width Unicode characters ins… | 67 | 1848 | active |
| sinaweibosdk/weibo_android_sdk The official Sina Weibo Android SDK, providing third-party Android apps with OAuth2.0 authorization (SSO via the Weibo client or WebView) a… | 54 | 1848 | active |
| kjk/notionapi An unofficial Go client library for Notion.so that uses a reverse-engineered API to download Notion pages as structured block data, with li… | 73 | 1840 | active |
| flask-restful/flask-restful Flask-RESTful is a Python extension for Flask that provides building blocks for creating REST APIs, including resource classes and request … | 23 | 6915 | maintenance |
| uname-yang/pysnowball A Python client library for the Xueqiu (Snowball) stock data API, covering real-time quotes, quote details, cash flow, and other financial … | 53 | 1835 | active |
| matthew-andrews/isomorphic-fetch A JavaScript library that provides the WHATWG Fetch API as a global polyfill, working consistently in both Node.js and browsers (via Browse… | 23 | 6907 | maintenance |
| google/protobuf-gradle-plugin A Gradle plugin from Google that compiles Protocol Buffer (.proto) definition files by invoking protoc and wiring the generated Java/Kotlin… | 72 | 1832 | active |
| zhangxiangliang/stock-api A zero-runtime-dependency TypeScript library for querying stock quotes, K-line data, and stock search across A-share, Hong Kong, US markets… | 96 | 1831 | active |
| kubernetes/code-generator Kubernetes' official Go code generators for building Kubernetes-style API types, producing typed clients, informers, listers, deepcopy func… | 77 | 1831 | stable |
| hugapi/hug Hug is a Python 3+ API framework built on Falcon's high-performance HTTP library, designed to make developing REST APIs as simple as writin… | 23 | 6883 | maintenance |
| twilio/twilio-video-app-react A multi-party video collaboration application built with Twilio's Programmable Video JS SDK, Conversations SDK, and React. It serves as a d… | 70 | 1825 | active |
| dakrone/clj-http clj-http is an idiomatic Clojure HTTP client library that wraps the Apache HttpComponents client. It is the officially supported version of… | 75 | 1824 | stable |
| microsoft/CDM Microsoft's Common Data Model (CDM) is a standard, extensible collection of schemas (entities, attributes, relationships) representing busi… | 33 | 1818 | active |
| digitalbazaar/jsonld.js A JavaScript implementation of the JSON-LD 1.0 and 1.1 W3C specifications, providing expansion, compaction, framing, and RDF dataset conver… | 64 | 1816 | active |
| ArtisanCloud/PowerWeChat PowerWeChat is a comprehensive WeChat SDK for Go covering Mini Programs, WeChat Pay, WeCom (Enterprise WeChat), and Official Accounts APIs.… | 93 | 1812 | active |
| jsonmodel/jsonmodel JSONModel is an Objective-C framework that maps JSON data directly into smart data model classes with automatic type conversion and validat… | 23 | 6809 | maintenance |
| hyperliquid-dex/hyperliquid-python-sdk An official Python SDK for the Hyperliquid decentralized perpetuals exchange API. It provides clients for querying market and account data … | 86 | 1807 | active |
| AngusKit/AngusTester AngusTester is a self-hosted agile development and testing platform combining project management, functional/API/scenario testing, service … | 54 | 1807 | active |
| SunoAI-API/Suno-API An unofficial Python/FastAPI-based API wrapper for Suno AI that lets you generate songs and lyrics programmatically. It includes automatic … | 33 | 1806 | active |
| lineofflight/frankfurter Frankfurter is an open-source currency data API that tracks daily exchange rates from 84 central banks covering 201 currencies back to 1948… | 96 | 1804 | active |
| Pact Pact is a code-first contract testing framework that lets consumers define expected interactions with providers via a DSL and mock service,… | 99 | 1803 | active |
| ExpediaGroup/graphql-kotlin A collection of Kotlin libraries built on top of graphql-java that simplify running GraphQL servers and clients. It includes schema generat… | 98 | 1803 | active |
| APIParkLab/APIPark APIPark is an open-source, cloud-native AI gateway and API developer portal for managing, integrating, and deploying AI and REST APIs. It u… | 66 | 1803 | active |
| doyensec/inql InQL is an open-source Burp Suite extension for advanced GraphQL security testing. It provides schema introspection, vulnerability detectio… | 76 | 1801 | active |
| alanjds/drf-nested-routers A Python library providing routers and fields for creating nested resources in Django REST Framework. It enables RESTful URL structures whe… | 85 | 1799 | active |
| wallarm/gotestwaf GoTestWAF is a Go-based tool that simulates OWASP and API attacks (SQL injection, XSS, etc.) across REST, GraphQL, gRPC, SOAP, and XMLRPC p… | 41 | 1799 | active |
| pyeve/eve Eve is an open-source Python REST API framework built on Flask that lets you build fully featured, customizable RESTful web services with m… | 65 | 6748 | maintenance |
| mantisbt/mantisbt MantisBT is an open-source, self-hosted web-based bug tracker and issue management system written in PHP. It offers per-project role-based … | 77 | 1796 | stable |
| microsoft/Recognizers-Text Microsoft.Recognizers-Text is a multilingual library for recognizing and resolving entities such as numbers, units, and date/time expressio… | 64 | 1794 | stable |
| kubb-labs/kubb Kubb is a meta framework for code generation that turns OpenAPI/Swagger specifications into type-safe TypeScript code via a plugin-based pi… | 94 | 1789 | active |
| Surnet/swagger-jsdoc A Node.js library that reads JSDoc-annotated source code and YAML files to generate OpenAPI (Swagger) specifications. It supports OpenAPI 3… | 83 | 1788 | active |
| glycerine/zygomys Zygomys is an embeddable Lisp interpreter written in pure Go, with an optional infix syntax subset of Go and a standalone REPL called zygo.… | 73 | 1787 | active |
| microsoft/vscode-languageserver-node A set of npm modules implementing the Language Server Protocol (LSP) in TypeScript for Node.js, including client, server, protocol definiti… | 96 | 1783 | stable |
| metlo-labs/metlo Metlo is an open-source API security platform that inventories API endpoints, detects malicious traffic in real time, and can automatically… | 38 | 1783 | active |
| dreamfactorysoftware/dreamfactory DreamFactory is a self-hosted enterprise data access platform that instantly generates fully governed REST APIs from databases, file stores… | 98 | 1782 | active |
| jooby-project/jooby Jooby is a modular, high-performance web framework for Java and Kotlin that runs on Netty, Jetty, or Undertow. It offers both a fluent Scri… | 98 | 1780 | active |
| ThomasAribart/json-schema-to-ts A TypeScript library that statically infers TypeScript types from JSON schemas via a FromSchema type utility, eliminating duplicate type de… | 59 | 1778 | active |
| scotty-web/scotty Scotty is a lightweight Haskell web framework inspired by Ruby's Sinatra, built on the WAI interface and the fast Warp web server. It lets … | 63 | 1776 | active |
| CoreWCF/CoreWCF CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core, provided as NuGet packages. It enables existi… | 86 | 1775 | active |
| requests/requests-oauthlib A Python library that adds OAuth 1 and OAuth 2 authentication support to the Requests HTTP library. It wraps OAuthlib to provide simple ses… | 35 | 1775 | stable |
| go-goyave/goyave Goyave is an opinionated, all-in-one Go web framework focused on building enterprise REST APIs with clean architecture, reliability, and de… | 95 | 1774 | active |
| gtxx3600/GPTSession2CPAandSub2API A pure client-side single-page web tool that converts ChatGPT Web session JSON into import formats for tools like CPA, sub2api, Cockpit Too… | 53 | 1774 | active |
| nategood/httpful Httpful is a chainable, REST-friendly HTTP client library for PHP 8.0+ that emphasizes readability and simplicity. It provides automatic re… | 54 | 1769 | active |
| kiwiz/gkeepapi gkeepapi is an unofficial Python client library for the Google Keep note-taking service. It allows programmatic access to create, read, mod… | 59 | 1768 | stable |
| go-fuego/fuego Fuego is a production-ready Go web API framework that automatically generates OpenAPI 3 documentation from typed handler code using generic… | 74 | 1767 | active |
| Netflix/genie Genie is a federated distributed job orchestration and execution engine developed by Netflix, exposing REST APIs to run big data jobs like … | 64 | 1767 | active |
| solana-foundation/pay A Rust CLI that acts as a payment layer for HTTP, wrapping tools like curl and AI agents (Claude, Codex, Goose) to automatically handle HTT… | 99 | 1762 | active |
| graphql-hive/graphql-inspector GraphQL Inspector is a suite of tools for validating and monitoring GraphQL schemas. It diffs two schemas to flag breaking, dangerous, or n… | 98 | 1760 | stable |
| richardszalay/mockhttp A testing library for .NET that replaces HttpClient's HttpMessageHandler with a mock handler, letting you configure canned responses via a … | 86 | 1760 | active |
| metosin/malli Malli is a high-performance, data-driven data specification library for Clojure and ClojureScript. It provides schema definitions as plain … | 85 | 1760 | active |
| dotnet/wcf dotnet/wcf provides the client-oriented Windows Communication Foundation (WCF) libraries for .NET Core, enabling apps to communicate with e… | 80 | 1750 | active |
| firebase/firebase-admin-node The Firebase Admin Node.js SDK is the official server-side library for accessing Firebase services (Authentication, Realtime Database, Clou… | 99 | 1747 | stable |
| googleworkspace/apps-script-oauth2 An OAuth2 library for Google Apps Script that creates, authorizes, and refreshes OAuth2 tokens using Apps Script's StateTokenBuilder and /u… | 62 | 1744 | active |
| vstakhov/libucl A C library for parsing and emitting UCL (Universal Configuration Language), an nginx-inspired configuration format fully compatible with J… | 85 | 1743 | stable |
| OpenBankProject/OBP-API An open-source RESTful API platform for banks that exposes accounts, transactions, payments, counterparties, entitlements and metadata, sup… | 77 | 1738 | active |
| standard-webhooks/standard-webhooks Standard Webhooks is an open specification plus reference libraries and tools for sending and verifying webhooks securely and consistently.… | 85 | 1737 | active |
| Mcp-Brasil/mcp-brasil An MCP server exposing 70 Brazilian public/government data sources (533 tools) to AI agents like Claude, GPT, and Copilot. Built in Python … | 75 | 1735 | active |
| dilame/instagram-private-api A NodeJS/TypeScript SDK providing a client for Instagram's private (undocumented) API, enabling full programmatic access to feeds, direct m… | 23 | 6469 | maintenance |
| jdalrymple/gitbeaker Gitbeaker is a comprehensive, fully typed GitLab API SDK for Node.js, Deno, Bun, browsers, and CLI usage. It covers all of GitLab's exposed… | 83 | 1731 | active |
| jacebrowning/memegen A free and open source REST API for programmatically generating meme images from URLs, built with Python, Sanic, and Pillow. It is stateles… | 77 | 1728 | active |
| ratchetphp/Ratchet Ratchet is a loosely coupled PHP library for asynchronously serving WebSockets, letting developers build real-time, bi-directional applicat… | 62 | 6437 | maintenance |
| wyeeeee/hajimi Hajimi is a FastAPI-based proxy for Google's Gemini API that exposes OpenAI-compatible endpoints like /v1/chat/completions. It provides API… | 10 | 1727 | active |
| tus/tus-resumable-upload-protocol The tus resumable upload protocol is an open HTTP-based protocol specification for reliable, resumable file uploads that can be interrupted… | 62 | 1725 | stable |
| Uniswap/token-lists A TypeScript package containing the JSON schema specification and utilities for Uniswap token lists, which are JSON blobs of ERC20 token me… | 55 | 1724 | stable |
| ib-api-reloaded/ib_async ib_async is a Python library providing a clean sync/async interface to Interactive Brokers' Trader Workstation (TWS) API and IB Gateway, su… | 60 | 1723 | active |
| php-fig/http-client The official PHP-FIG repository holding the PSR-18 HTTP Client specification interfaces. It provides only abstractions (interfaces), not an… | 23 | 1721 | stable |
| vgrem/office365-rest-python-client A Python client library for Microsoft 365 and Microsoft Graph APIs, providing typed access to SharePoint REST API v1 via ClientContext and … | 90 | 1720 | active |
| dghubble/sling Sling is a Go HTTP client library for creating and sending API requests. It stores request properties (method, path, headers, query params,… | 55 | 1720 | stable |
| sabre-io/dav sabre/dav is the most popular WebDAV framework for PHP, used to build WebDAV, CalDAV, and CardDAV servers. It supports a wide range of rela… | 84 | 1719 | stable |
| aklivity/zilla Zilla is a stateless, multi-protocol gateway for event-driven applications and AI agents, exposing Kafka and MQTT over HTTP, SSE, gRPC, MQT… | 99 | 1717 | active |
| cirospaciari/socketify.py socketify.py is a high-performance Python web framework providing HTTP/HTTPS and WebSocket servers built on uSockets and libuv, optimized f… | 78 | 1714 | active |
| vega/ts-json-schema-generator A TypeScript library and CLI tool that generates JSON Schema documents from TypeScript type definitions. It parses TypeScript source files … | 76 | 1714 | active |
| ekalinin/sitemap.js sitemap.js is a Node.js library and CLI for generating, parsing, validating, and updating sitemap XML files. It uses streaming to efficient… | 89 | 1712 | stable |
| simplejson/simplejson simple is a simple, fast, complete and extensible JSON encoder/decoder for Python 3.8+ with legacy Python 2.7 support. It is pure Python wi… | 99 | 1711 | stable |
| zzzprojects/System.Linq.Dynamic.Core A .NET Core / .NET Standard port of Microsoft's Dynamic LINQ library that lets developers write string-based LINQ queries against IQueryabl… | 94 | 1711 | active |
| fonoster/routr Routr is a lightweight, programmable SIP proxy, location server, and registrar for building scalable VoIP infrastructure. It is cloud-nativ… | 88 | 1711 | active |
| SmartBear/soapui SoapUI is a free, open-source, cross-platform desktop application for functional testing of SOAP and REST APIs and web services. It support… | 78 | 1705 | active |
| Safe3/uusec-waf UUSEC WAF is a free, high-performance web application firewall and API security gateway (WAAP) that combines AI/semantic detection engines … | 98 | 1703 | active |