# public-apis

> A community-curated list of free APIs organized by category

public-apis is an open-source GitHub directory collecting thousands of free REST APIs across dozens of industries and development categories. Each entry outlines essential integration details, including authentication requirements, HTTPS availability, and CORS support. It also highlights MCP servers for AI agents, making it an essential reference for building prototypes, applications, and side projects without paid subscriptions.

Website: https://github.com/public-apis/public-apis

## What it is for

- Find free APIs to power mockups, side projects, or prototype applications
- Check authentication requirements and CORS compatibility before integrating an external API
- Discover MCP servers for AI agent tooling and local automation

## Features

- Categorized index spanning dozens of topics from animals and anime to weather and finance
- Markdown tables specifying Auth method, HTTPS support, and CORS availability for each API
- Dedicated Model Context Protocol (MCP) servers section for AI agent workflows
- Community-maintained and regularly updated repository backed by APILayer

## Pricing

Free to view and use; individual third-party APIs have their own limits and terms.

## Details

- Type: GitHub repo
- Category: [Development](https://xiry.app/topics/development.md)
- Open source: yes
- Platforms: Web
- For: Software engineers, indie hackers, and students looking for free external data sources.
- Alternative to: RapidAPI Hub, Postman Public API Network
- Tags: apis, rest api, free apis, developer tools, github, curated list

## Why it was saved

- [@ninjaaitools, 14 December 2025](https://www.instagram.com/reel/DSQQCvPjhli/): Saves developers from paying expensive API subscriptions by providing tested, categorized free APIs with authentication and CORS details.

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Updated 3 October 2026. Page: https://xiry.app/resources/public-apis

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