Public APIs · Open Collection

API Collection

Version
View on GitHub Raw JSON API AggregationAPI DirectoryAPI DiscoveryFree APIsOpen-SourceOpen Collection

Overview

API Collection is a Open Collection published by Public APIs on the APIs.io network.

Tagged areas include API Aggregation, API Directory, API Discovery, Free APIs, and Open-Source.

Related API Specs

Public APIs Categories API (OpenAPI) Public APIs Entries API (OpenAPI) Public APIs Health API (OpenAPI)
Back to Public APIs · All Collections · GitHub

Work with this as data

Every collection here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for collections

4 MCP tools reach this
  • find_collectionsBrowse and filter every collection in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This collection 
curl "https://apis.io/api/v1/collections/open-.refine-report"
All collections 
curl "https://apis.io/api/v1/collections?limit=25"

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