1.public-apis / public-apis
A collective list of free APIs
Ranked by Attention Score: stars gained over the last 30 complete days
1–100 of 2,187 by Attention Score · Oct 4, 2026 – Nov 2, 2026 (UTC)
A collective list of free APIs
Fully autonomous AI Agents system capable of performing complex penetration testing tasks
The AI-native JSON Gantt chart engine. Dependency-free interactive timelines with React, script-tag, CLI, topological DAG solver, and formal JSON schema.
Zero-modification Human-in-the-Loop adapter for OpenOPC's agentic DAG runtime.
Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.
A local-first desktop workspace for persistent AI teammates. Run Codex, Claude, and Grok with dedicated workspaces, task queues, file sharing, browser control, and agent-to-agent collaboration.
User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.
⌥ Coding agent with the IDE wired in. Built by Stencil Labs.
An open-source, self-hostable PaaS alternative to Vercel, Heroku & Netlify that lets you easily deploy static sites, databases, full-stack applications and 360+ one-click services on your own servers.
WorkBuddy 国际国内多账号反代网关,支持 Codex / Claude Code / DSH与标准 OpenAI 客户端。
The 30 Days of Python programming challenge is a step-by-step guide to learn the Python programming language in 30 days. This challenge may take more than 100 days. Follow your own pace. These videos may help too: https://www.youtube.com/channel/UC7PNRuno1rzYPb1xLa4yktw
High performance self-hosted photo and video management solution.
The open alternative to Salesforce, designed for AI.
Composable, accessible components with thoughtful defaults. Build your own component library with code you can customize, extend, and make your own.
Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS
freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.
FastAPI framework, high performance, easy to learn, fast to code, ready for production
Flutter makes it easy and fast to build beautiful apps for mobile and beyond
Supporting multi-protocol multi-user(Vmess, Vless, Trojan, ShadowSocks, Wireguard, Hysteria, Tunnel, Mixed, HTTP, Tun, MTProto، AmneziaWG)
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!
A contract-driven gRPC regression harness for AI coding agents, with human-approved baselines. Snapshot the valid call chains of an API so an agent can look one up instead of tracing for it. gRPC today, OpenAPI next
An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours.
🔥🔥🔥 Open-source Jira, Linear, Monday, and ClickUp alternative. Plane is a modern project management platform to manage tasks, sprints, docs, and triage.
腾讯 CodeBuddy 账号池管理控制台,内置 OpenAI 兼容反代网关:扫码批量纳管账号、定时签到与保活、密钥分组分发、IP 与模型白名单、调用日志与用量统计;支持带签名校验的一键更新。
Free, Open Source, Self-Hosted WhatsApp API Gateway
Enhanced ChatGPT Clone: Features Agents, MCP, Skills, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message search, Code Interpreter, langchain, DALL-E-3, OpenAPI Actions, Functions, Secure Multi-User Auth, Presets, open-source for self-hosting. Active
明日方舟「卫戍协议:盟约」非官方同人复刻:浏览器自走棋塔防,单人或 1–4 人联机合作(非商业)
An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.
Ovis (formerly herdr web UI): free, open-source browser and phone client for herdr. Chat and live terminal for Claude Code, Codex and every agent pane, remote PCs over SSH, web push alerts
Node.js JavaScript runtime ✨🐢🚀✨
A community-supported supercharged document management system: scan, index and archive all your documents
Open-source live-chat, email support, omni-channel desk. An alternative to Intercom, Zendesk, Salesforce Service Cloud etc. 🔥💬
Offline, privacy-first grammar checker. Fast, open-source, Rust-powered
A fancy self-hosted monitoring tool
Learn System Design concepts and prepare for interviews using free resources.
A modern animation library for React and JavaScript
The Patterns of Scalable, Reliable, and Performant Large-Scale Systems
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.
抖音 / TikTok 平台作品下载/数据采集工具
An open-source framework for making universal native apps with React. Expo runs on Android, iOS, and the web.
LocalAI is the open-source AI engine. Run any model - LLMs, vision, voice, image, video - on any hardware. No GPU required.
Mastra is the modern TypeScript framework for AI-powered applications and agents.
Vim-fork focused on extensibility and usability
Stealth headless browser for AI agents — bypass Cloudflare, bot detection, and anti-scraping. Drop-in Puppeteer/Playwright replacement.
🇨🇭 A React renderer for Three.js
Play a finished motion-graphics ad in sync with the rough drafts it grew from, and export the breakdown as MP4.
A fast, modern download manager for HTTP, BitTorrent, Magnet, and ed2k. Cross-platform, built with Golang and Flutter.
Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)
The web framework for content-driven websites.
⚡ Pi, the coding agent, compiled ahead of time to one native executable. 10× faster to start, 7× less CPU and 4.5× less memory than Pi on Node. Linux, macOS, Windows, ARM64 and Android (Termux).
Next Generation Agentic Proxy for AI Agents and MCP servers
🔥 官方推荐 🔥 RuoYi-Vue 全新 Pro 版本,优化重构所有功能。基于 Spring Boot + MyBatis Plus + Vue & Element 实现的后台管理系统 + 微信小程序,支持 RBAC 动态权限、数据权限、SaaS 多租户、Flowable 工作流、三方登录、支付、短信、商城、CRM、ERP、MES、IM、AI 大模型、IoT 物联网等功能。你的 ⭐️ Star ⭐️,是作者生发的动力!
Real-time network monitor + outbound firewall — see & block every connection. Privacy-first, local-first, Rust fleet agent, SIEM exports, 8 languages. / Moniteur réseau temps réel + pare-feu sortant, agent de flotte Rust, exports SIEM. 100 % local.
🚀 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, MCP server for AI agents, CLI and web console, plus offline speech-to-text for downloaded videos. Self-healing identity pool, PostgreSQL archive, one docker compose up.
Send push notifications to your phone or desktop using PUT/POST
:electron: Build cross-platform desktop apps with JavaScript, HTML, and CSS
The Web framework for perfectionists with deadlines.
:octocat: A curated awesome list of lists of interview questions. Feel free to contribute! :mortar_board:
Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one
Open Source Alternative to Vercel, Netlify and Heroku.
Payload is the open-source, fullstack Next.js framework, giving you instant backend superpowers. Get a full TypeScript backend and admin panel instantly. Use Payload as a headless CMS or for building powerful applications.
Speech-to-text, text-to-speech, speaker diarization, speech enhancement, source separation, and VAD using next-gen Kaldi with onnxruntime without Internet connection. Support embedded systems, Android, iOS, HarmonyOS, Raspberry Pi, RISC-V, RK NPU, Axera NPU, Ascend NPU, x86_64 servers, websocket server/client, support 12 programming languages
Connect your agents & product to 1,000 APIs.
Node Version Manager - POSIX-compliant bash script to manage multiple active node.js versions.
🙃 A delightful community-driven (with 2,500+ contributors) framework for managing your zsh configuration. Includes 300+ optional plugins (rails, git, macOS, hub, docker, homebrew, node, php, python, etc), 140+ themes to spice up your morning, and an auto-update tool that makes it easy to keep up with the latest updates from the community.
A highly customizable homepage (or startpage / application dashboard) with Docker and service API integrations.
Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies
Turn any website into a structured API. Extract, automate, search and monitor the web.
📦 Repomix is a powerful tool that packs your entire repository into a single, AI-friendly file. Perfect for when you need to feed your codebase to Large Language Models (LLMs) or other AI tools like Claude, ChatGPT, DeepSeek, Perplexity, Gemini, Gemma, Llama, Grok, and more.
The world's most flexible commerce platform for agents and developers
aria2 is a lightweight multi-protocol & multi-source, cross platform download utility operated in command-line. It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink.
Developer-first error tracking and performance monitoring
Open source, composable payments platform | PCI compliant | SaaS and Self-host options | Enables connectivity to multiple payment, payout, fraud, vault and tokenization providers | Uplifts authorization with intelligent routing and revenue recovery | Reduce payment processing costs with cost observability | Reduces payment ops with reconciliation
A unified trading API with more than 100 crypto exchanges and prediction markets in JavaScript / TypeScript / Python / C# / PHP / Go / Java / Rust
SafeLine is a self-hosted WAF(Web Application Firewall) / reverse proxy to protect your web apps from attacks and exploits.
A simple, yet elegant, HTTP library.
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。(V3.0 新增)PS.这个APK主要是学习与自用,如有BUG请提ISSUE,同时欢迎大家提PR指正
Open source, privacy-first web analytics. Lightweight, cookie-free Google Analytics alternative. Self-hosted or cloud.
Joplin - the privacy-focused note taking app with sync capabilities for Windows, macOS, Linux, Android and iOS.
The Python micro framework for building web applications.
Qoder国际国内多账号反代网关,Qoder 国际国内双区多账号 OpenAI 兼容网关中枢 — COSY 签名推理、稳定设备指纹防风控、OAuth 设备授权免客户端登录、每日签到与 Pro 福利、后台定时调度器、Web 监控看板,支持 Codex / Claude Code 与标准 OpenAI 客户端
Open Source realtime backend in 1 file
A curated list of software and architecture related design patterns.
Pear 🍐 is extension for music player
The Cloud Native Application Proxy
Apache Superset is a Data Visualization and Data Exploration Platform
Web framework built on Web Standards
Typed TypeScript SDK for direct and managed social platform integrations, with capability checks, explicit outcomes, and deterministic testing.
A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS, POP3, POP3S, RTSP, SCP, SFTP, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features
Run the DeepSeek Harness AI agent natively on Android — no root, no Termux, extension center included | 手机本地运行 DeepSeek Agent,免 Root 免 Termux
The fastest knowledge base for growing teams. Beautiful, realtime collaborative, feature packed, and markdown compatible.
⚡ Project management that doesn't become the project. Boards, Gantt charts, and GitHub integration. Self-host it or use Kaneo Cloud.
:zap: Delightful Node.js packages and resources [BECAUSE OF TOO MUCH SPAM AND LOW-QUALITY SUBMISSIONS, SUBMISSIONS ARE PAUSED TEMPORARILY]
Coding articles to level up your development skills
Data validation using Python type hints
Proxy server to bypass Cloudflare protection