Public APIs

A community-curated index of public APIs, useful when a side project, prototype or product needs data or services from outside and you want a free starting point. It is a reference list rather than an API itself.

Entries are grouped into many categories. Each row gives a short description and notes whether the API needs authentication, supports HTTPS and allows CORS, so you can judge the fit before signing up. The README also lists MCP servers alongside the APIs.