A collective list of free APIs

Vim-fork focused on extensibility and usability

FastAPI framework, high performance, easy to learn, fast to code, ready for production

🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable and developer-first.

👽 Open source API development ecosystem - https://hoppscotch.io

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

Beautiful static documentation for your API

The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.

Blazing fast, instant realtime GraphQL APIs on your DB with fine grained access control, also trigger webhooks on database events.

🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era. JSON support, colors, sessions, downloads, plugins & more.

🧙‍♀️ Move Fast and Break Nothing. End-to-end typesafe APIs made easy.

网易云音乐 Node.js API service

A JavaScript / TypeScript / Python / C# / PHP cryptocurrency trading API with support for more than 100 bitcoin/altcoin exchanges

Web APIs for Django. 🎸

YApi 是一个可本地部署的、打通前后端及QA的、可视化的接口管理平台

A complete and graceful API for Wechat. 微信个人号接口、微信机器人及命令行微信，三十行即可自定义个人号机器人。

The Modern Data Stack 🐰 — Directus is an instant REST+GraphQL API and intuitive no-code data collaboration app for any SQL database.

Microsoft REST API Guidelines

Checklist of the most important security countermeasures when designing, testing, and releasing your API

REST API for any Postgres database