API Development

public-apis

by public-apis

A collective list of free APIs

fastapi

by fastapi

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

neovim

by neovim

Vim-fork focused on extensibility and usability

hoppscotch

by hoppscotch

Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

imgui

by ocornut

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

json-server

by typicode

Get a full fake REST API with zero coding in less than 30 seconds (seriously)

strapi

by strapi

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

nocodb

by nocodb

🔥 🔥 🔥 A Free & Self-hostable Airtable Alternative

meilisearch

by meilisearch

A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.

LocalAI

by mudler

LocalAI is the open-source AI engine. Run any model - LLMs, vision, voice, image, video - on any hardware. No GPU required.

bruno

by usebruno

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

GPT_API_free

by chatanywhere

免费大模型API，支持免费调用GPT、DeepSeek等主流模型，免费额度10000点，每日刷新！另付费价格最低官方1-2折！

ccxt

by ccxt

A unified trading API with more than 100 crypto exchanges and prediction markets in JavaScript / TypeScript / Python / C# / PHP / Go / Java / Rust

trpc

by trpc

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

fiber

by gofiber

⚡️ Express inspired web framework written in Go

insomnia

by Kong

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

quivr

by The-Vibe-Company

An open-source engine that turns continuous content streams into search and monitoring. Durable ingestion, hybrid search, alerts, and plugins for formats, models and business…

directus

by directus

The flexible backend for all your projects 🐰 Turn your DB into a headless CMS, admin panels, or apps with a custom UI, instant APIs, auth & more.

cli

by httpie

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

one-api

by songquanpeng

LLM API 管理 & 分发系统，支持 OpenAI、Azure、Anthropic Claude、Google Gemini、DeepSeek、字节豆包、ChatGLM、文心一言、讯飞星火、通义千问、360 智脑、腾讯混元等主流模型，统一 API 适配，可用于 key 管理与二次分发。单可执行文件，提供 Docker 镜像，一键部署，开箱即用。LLM…

ntfy

by binwiederhier

Send push notifications to your phone or desktop using PUT/POST

go-zero

by zeromicro

A cloud-native Go microservices framework with cli tool for productivity.

graphql-engine

by hasura

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

django-rest-framework

by encode

Web APIs for Django. 🎸

swagger-ui

by swagger-api

Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.

SmsForwarder

by pppscn

短信转发器——监控Android手机短信、来电、APP通知，并根据指定规则转发到其他手机：钉钉群自定义机器人、钉钉企业内机器人、企业微信群机器人、飞书机器人、企业微信应用消息、邮箱、bark、webhook、Telegram机器人、Server酱、PushPlus、手机短信等。包括主动控制服务端与客户端，让你轻松远程发短信、查短信、查通话、查话簿、查电量等。…

postgrest

by PostgREST

REST API for any Postgres database

yapi

by YMFE

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

openapi-generator

by OpenAPITools

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

ItChat

by littlecodersh

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。

API-Security-Checklist

by shieldfy

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

api-guidelines

by microsoft

Microsoft REST API Guidelines

skyvern

by Skyvern-AI

Automate browser based workflows with AI

chi

by go-chi

lightweight, idiomatic and composable router for building Go HTTP services

whatsapp-web.js

by wwebjs

A WhatsApp client library for NodeJS that connects through the WhatsApp Web browser app

parse-server

by parse-community

Parse Server for Node.js / Express

Douyin_TikTok_Download_API

by Evil0ctal

🚀 自托管的抖音、TikTok、B 站数据采集与无水印视频下载 API，支持 AI agent 通过 MCP 调用与离线语音转文字，Docker 一键部署。| Self-hosted TikTok, Douyin & Bilibili scraper and no-watermark video downloader — async REST API,…

security-guide-for-developers

by FallibleInc

Security Guide for Developers

gofr

by gofr-dev

An opinionated GoLang framework for accelerated microservice development. Built in support for databases and observability.

server

by bitwarden

Bitwarden infrastructure/backend (API, database, Docker, etc).

grpc-gateway

by grpc-ecosystem

gRPC to JSON proxy generator following the gRPC HTTP spec

iii

by iii-hq

Effortlessly compose, extend, and observe every service in real-time for the first time ever.

msw

by mswjs

The industry standard for API mocking in JavaScript.

maxun

by getmaxun

Turn any website into a structured API. Extract, automate, search and monitor the web.

swagger-codegen

by swagger-api

swagger-codegen contains a template-driven engine to generate documentation, API clients and server stubs in different languages by parsing your OpenAPI / Swagger definition.

awesome-gpt-image-2-API-Prompts

by Evolink-AI

GPT-Image-2 API and Prompts

TikTokDownloader

by JoeanAmier

抖音 / TikTok 平台作品下载/数据采集工具

apisix

by apache

The Cloud-Native API Gateway and AI Gateway

LibreTranslate

by LibreTranslate

Free and Open Source Machine Translation API. Self-hosted, offline capable and easy to setup.

OpenWA

by rmyndharis

Free, Open Source, Self-Hosted WhatsApp API Gateway