FastMCP

Verified Integration

Author: @automating•Category: ServerApplication

GitHub Repository

JSON-RPC 2.0

Protocol Standard

Sub-second

Execution Latency

Active

Operational Status

Client Configuration

— Connect FastMCP to Claude Desktop or Cursor in seconds

{
  "mcpServers": {
    "fastmcp-4": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-fastmcp-4"
      ],
      "env": {}
    }
  }
}

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).

Architecture & Capabilities

System Overview

Generates Model Context Protocol servers automatically from OpenAPI specifications and FastAPI applications.

Indexed Date

7/22/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for FastMCP

FastMCP streamlines development by automating the conversion of OpenAPI specs or FastAPI apps, providing integrated Swagger UI for documentation, and including built-in automatic testing, significantly reducing manual effort and time.

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