APIs

The open-source tool that turns OpenAPI specs into interactive, self-documenting API pages.

An API marketplace where you discover, connect to, and manage thousands of third-party APIs in one place.

A community-curated GitHub repository listing thousands of free public APIs, organized by category.

A desktop API client for designing, testing, and debugging REST and GraphQL APIs with a clean UI.

A lightweight, open-source API testing tool that runs entirely in the browser with a clean workspace.

The official API for automating GitHub — repos, issues, PRs, releases, and actions — from your own scripts.

Custom mapping and location APIs with beautiful vector tiles, geocoding, routing, and navigation.

Cloud communications APIs for SMS, voice, video, and email that developers can wire into any app.

The API for OpenAI's models, including GPT, embeddings, and image generation, with function calling support.

A developer-friendly payments API with clean documentation, libraries for every language, and instant webhooks.