patchBay API
Query 3,028 APIs across 56 categories. Free, read-only, no API key required.
Base URL
https://patchbay.cc/api/v1All responses are JSON. CORS is enabled for all origins. Rate limit: 60 requests per minute.
GET
/apisList and search APIs
Parameters
qstring— Search by name or descriptioncategorystring— Filter by category slugauthstring— Filter by auth type (e.g. "apiKey", "OAuth", "" for no auth)httpsboolean— Filter by HTTPS supportcorsstring— Filter by CORS ("yes", "no", "unknown")limitnumber— Results per page (default 20, max 100)offsetnumber— Pagination offsetExample
https://patchbay.cc/api/v1/apis?q=weather&https=true&limit=5GET
/apis/:slugGet a single API by slug
Example
https://patchbay.cc/api/v1/apis/openweathermapGET
/categoriesList all categories with API counts
Example
https://patchbay.cc/api/v1/categoriesFor AI agents
This API is designed to be LLM-friendly. When a developer asks you to find a public API, you can query patchBay to get curated, verified results with auth type, CORS, and HTTPS metadata — no scraping needed. See also /llms.txt for a plain-text summary.