HomeProjectsArticlesPK BoardAbout
Explore Projects

FastAPI MCP

Stale
GitHub Python MIT

Description

Library to expose FastAPI endpoints as Model Context Protocol tools with authentication support, enabling AI agents to call existing APIs directly

Key Features

  • Native FastAPI extension — not just an OpenAPI-to-MCP converter
  • Authentication built in using existing FastAPI Depends() dependencies
  • Zero/minimal configuration — point at your FastAPI app and it works
  • Preserves request/response schemas and endpoint documentation from Swagger
  • ASGI transport for efficient direct communication without HTTP overhead
  • Flexible deployment — mount to same app or deploy as separate MCP server

Use Cases

💡 Exposing existing FastAPI microservices as MCP tools for AI agents
💡 Adding AI-callable interfaces to authenticated internal APIs
💡 Building MCP-compatible APIs without rewriting from scratch
💡 Enabling Claude or other AI assistants to invoke your REST endpoints
💡 Rapid prototyping of AI-connected backends with existing OpenAPI specs

Strengths & Limitations

✅ Strengths

  • • High community interest (12.0k stars)
  • • Permissive open-source license (MIT)

⚠️ Limitations

  • • No updates in over 8 months

Tags

mcp fastapi api tool-integration python

Categories

🔌 MCP Tools ⚡ Agent Tools

Quick Start

uv add fastapi-mcp (or pip install fastapi-mcp). In your FastAPI app: from fastapi import FastAPI; from fastapi_mcp import FastApiMCP; app = FastAPI(); mcp = FastApiMCP(app); mcp.mount(). Your MCP server is available at /mcp
Visit GitHub Visit Website

Related Projects

Awesome LLM Skills

1.5k · Python
Normal C

A curated list of awesome LLM and AI Agent Skills, resources and tools for customising AI Agent workflows. Works with Claude Code, Codex, Gemini CLI and custom agents.

agenttoolsmcp +2
  • · Curated collection of LLM skills for Claude Code, Codex, Gemini CLI, and more
  • · Covers document processing (docx, pdf, pptx, xlsx), development tools, and research workflows
  • · Cross-platform compatibility with Anthropic, OpenAI, Google, and Alibaba AI tools
View on GitHub

Excel MCP Server

4.1k · Python
Stale B

Model Context Protocol server for Excel file manipulation, enabling AI agents to read, create and modify spreadsheets

mcpexcelspreadsheet +2
  • · Create, read, update, and manage Excel workbooks and worksheets without Microsoft Excel installed
  • · Full data manipulation: formulas, formatting, charts, pivot tables, and Excel table operations
  • · Data validation for ranges, formulas, and data integrity with conditional formatting support
View on GitHub

Continuous Claude

3.9k · Python
Stale C

Context management for Claude Code with hooks for state maintenance via ledgers and handoffs. Enables MCP execution without context pollution and agent orchestration with isolated context windows for long-running conversations.

mcpagentpython +3
  • · Persistent learning system with YAML handoffs that preserve context across sessions, solving Claude Code's compaction problem
  • · 109 natural-language-triggered skills with automatic activation via rule-based context injection hooks
  • · 32 specialized agents including scout (exploration), oracle (research), debug-agent, and kraken for parallelized task execution
View on GitHub