This GitHub repo is a powerhouse collection of APIs you can start using immediately to build everything from simple automations to full-scale applications. One of the most valuable API lists on GitHub—period. 💪

📜 A collective list of public GraphQL APIs

🌐 Wikipedia for Web APIs. Directory of REST API definitions in OpenAPI 2.0/3.x format

The ultimate collection of APIs for building autonomous AI agents — 2,036 production-ready APIs across Agents, AI Models, and MCP Servers. Stop wasting weeks building infrastructure. Plug these in and ship your agent today.

The World's Most Comprehensive, Authoritative, and Structured Open Source Data Source Knowledge Base

A massive, auto-updated directory of more than 25,000 public APIs for developers, covering AI, data, authentication, finance, maps, weather, analytics, and thousands of integration-ready endpoints. The list updates automatically and keeps expanding, giving developers the largest and most up-to-date API resource in one place. 🚀

Public source-backed Arab-world agent skills: APIs, marketing, sales, support, localization, Arabic NLP, open data, and MENA workflows.

Nexus-AGI — a public AGI service directory & API registry for autonomous agents. Supports .well-known autodiscovery, OpenAPI schemas, and integration with AI models, tools, and services.

Curated directory of best API repos, guides & resources for developers

✨The Free API Directory which is friendly to AI🤖, with complete API documentation and easy for AI to understand and use.

A curated list of the most AI-agent-ready APIs, scored by the Jentic API AI-Readiness Framework

🛠️ Developer's Swiss Army Knife — CLI tools, Snippet Vault & Public API Directory in one monorepo

A public GraphQL API providing structured data on programming languages, their creators, and related frameworks and tools. Perfect for developers, educators, and anyone exploring modern technology stacks.

A collaborative open-source API Hub where developers can discover and share free APIs.

🌐 Explore 306 production-ready REST APIs, designed to enhance your development projects and streamline integration with ease.

200+ Manually Curated APIs for Developers | AI, Travel, Payments, Gaming ,crypto,& More | Free API Directory and Marketplace

356 Production-Ready REST APIs for developers. Fast, reliable, and easy to integrate.

⭐ A curated collection of AI APIs that provide free credits, free tiers, or developer trials. Perfect for developers, startups, indie hackers, and AI builders to experiment and build AI-powered applications.

Search, filter & test 1,500+ free public APIs live in your browser. A fast frontend for public-apis with a CORS+no-auth filter and an in-browser playground.

50+ free APIs that require no authentication. npm, PyPI, NASA, HIBP, Wayback Machine, VirusTotal, and more. Code examples included.