MCP Public APIs

An MCP server that indexes the public-apis catalogue and lets an LLM query it by category, auth type, HTTPS support, CORS, and keyword — without browsing the README manually.

Why

Without this MCP, an LLM recommending a public API has to guess or ask the user to check manually. With it, the LLM can say:

"I need a Books API, HTTPS, no auth, CORS-enabled for your React app." → query_apis(category="Books", no_auth=True, https=True, cors="yes")

Related MCP server: OpenAPI MCP Server

Tools

query_apis parameters

Installation

cd MCP_PUBLIC_APIS
pip install -e .

Running

mcp-public-apis

Or add it to your MCP client config:

{
  "mcpServers": {
    "public-apis": {
      "command": "mcp-public-apis"
    }
  }
}

Development

pip install -e ".[dev]"
pytest

Data Source

The index is built from the raw README.md of public-apis/public-apis on GitHub, which lists ~1400 public APIs organised into ~80 categories. The schema mirrors the README table exactly:

name · url · description · auth · https · cors · category