# fastapi-mcp > Automatic MCP server generator for FastAPI applications - converts FastAPI endpoints to MCP tools for LLM integration - **URL**: https://www.freshcrate.ai/projects/fastapi-mcp - **Author**: pypi - **Category**: MCP Servers - **Latest version**: `0.4.0` (2026-04-21) - **License**: non-standard - **Source**: https://github.com/tadata-org/fastapi_mcp/issues - **Homepage**: https://pypi.org/project/fastapi-mcp/ - **Language**: Python - **GitHub**: 11,816 stars, 942 forks - **Registry**: pypi (`fastapi-mcp`) - **Tags**: `ai`, `api`, `claude`, `conversion`, `fastapi`, `llm`, `mcp`, `modelcontextprotocol`, `pypi` ## Description

fastapi-to-mcp

Built by Tadata

FastAPI-MCP

Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth!

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fastapi-mcp-usage

## Features - **Authentication** built in, using your existing FastAPI dependencies! - **FastAPI-native:** Not just another OpenAPI -> MCP converter - **Zero/Minimal configuration** required - just point it at your FastAPI app and it works - **Preserving schemas** of your request models and response models - **Preserve documentation** of all your endpoints, just as it is in Swagger - **Flexible deployment** - Mount your MCP server to the same app, or deploy separately - **ASGI transport** - Uses FastAPI's ASGI interface directly for efficient communication ## Hosted Solution If you prefer a managed hosted solution check out [tadata.com](https://tadata.com). ## Installation We recommend using [uv](https://docs.astral.sh/uv/), a fast Python package installer: ```bash uv add fastapi-mcp ``` Alternatively, you can install with pip: ```bash pip install fastapi-mcp ``` ## Basic Usage The simplest way to use FastAPI-MCP is to add an MCP server directly to your FastAPI application: ```python from fastapi import FastAPI from fastapi_mcp import FastApiMCP app = FastAPI() mcp = FastApiMCP(app) # Mount the MCP server directly to your FastAPI app mcp.mount() ``` That's it! Your auto-generated MCP server is now available at `https://app.base.url/mcp`. ## Documentation, Examples and Advanced Usage FastAPI-MCP provides [comprehensive documentation](https://fastapi-mcp.tadata.com/). Additionaly, check out the [examples directory](examples) for code samples demonstrating these features in action. ## FastAPI-first Approach FastAPI-MCP is designed as a native extension of FastAPI, not just a converter that generates MCP tools from your API. This approach offers several key advantages: - **Native dependencies**: Secure your MCP endpoints using familiar FastAPI `Depends()` for authentication and authorization - **ASGI transport**: Communicates directly with your FastAPI app using its ASGI interface, eliminating the need for HTTP calls from the MCP to your API - **Unified infrastructure**: Your FastAPI app doesn't need to run separately from the MCP server (though [separate deployment](https://fastapi-mcp.tadata.com/advanced/deploy#deploying-separately-from-original-fastapi-app) is also supported) This design philosophy ensures minimum friction when adding MCP capabilities to your existing FastAPI services. ## Development and Contributing Thank you for considering contributing to FastAPI-MCP! We encourage the community to post Issues and create Pull Requests. Before you get started, please see our [Contribution Guide](CONTRIBUTING.md). ## Community Join [MCParty Slack community](https://join.slack.com/t/themcparty/shared_invite/zt-30yxr1zdi-2FG~XjBA0xIgYSYuKe7~Xg) to connect with other MCP enthusiasts, ask questions, and share your experiences with FastAPI-MCP. ## Requirements - Python 3.10+ (Recommended 3.12) - uv ## License MIT License. Copyright (c) 2025 Tadata Inc. ## Recent releases | Version | Date | Urgency | Changes | | --- | --- | --- | --- | | `0.4.0` | 2026-04-21 | Low | Imported from PyPI (0.4.0) | | `v0.4.0` | 2025-07-28 | Low | 🚀 **FastAPI-MCP now supports Streamable HTTP transport.** HTTP transport is now the recommended approach, following the specification that positions HTTP as the standard while maintaining SSE for backwards compatibility. ### ⚠️ Breaking Changes - **`mount()` method is deprecated** and will be removed in a future version. Use `mount_http()` for HTTP transport (recommended) or `mount_sse()` for SSE transport. ### Added - 🎉 **Streamable HTTP Transport Support** - New `mount_http()` met | | `v0.4.0` | 2025-07-28 | Low | 🚀 **FastAPI-MCP now supports Streamable HTTP transport.** HTTP transport is now the recommended approach, following the specification that positions HTTP as the standard while maintaining SSE for backwards compatibility. ### ⚠️ Breaking Changes - **`mount()` method is deprecated** and will be removed in a future version. Use `mount_http()` for HTTP transport (recommended) or `mount_sse()` for SSE transport. ### Added - 🎉 **Streamable HTTP Transport Support** - New `mount_http()` met | | `v0.4.0` | 2025-07-28 | Low | 🚀 **FastAPI-MCP now supports Streamable HTTP transport.** HTTP transport is now the recommended approach, following the specification that positions HTTP as the standard while maintaining SSE for backwards compatibility. ### ⚠️ Breaking Changes - **`mount()` method is deprecated** and will be removed in a future version. Use `mount_http()` for HTTP transport (recommended) or `mount_sse()` for SSE transport. ### Added - 🎉 **Streamable HTTP Transport Support** - New `mount_http()` met | | `v0.4.0` | 2025-07-28 | Low | 🚀 **FastAPI-MCP now supports Streamable HTTP transport.** HTTP transport is now the recommended approach, following the specification that positions HTTP as the standard while maintaining SSE for backwards compatibility. ### ⚠️ Breaking Changes - **`mount()` method is deprecated** and will be removed in a future version. Use `mount_http()` for HTTP transport (recommended) or `mount_sse()` for SSE transport. ### Added - 🎉 **Streamable HTTP Transport Support** - New `mount_http()` met | | `v0.4.0` | 2025-07-28 | Low | 🚀 **FastAPI-MCP now supports Streamable HTTP transport.** HTTP transport is now the recommended approach, following the specification that positions HTTP as the standard while maintaining SSE for backwards compatibility. ### ⚠️ Breaking Changes - **`mount()` method is deprecated** and will be removed in a future version. Use `mount_http()` for HTTP transport (recommended) or `mount_sse()` for SSE transport. ### Added - 🎉 **Streamable HTTP Transport Support** - New `mount_http()` met | | `v0.4.0` | 2025-07-28 | Low | 🚀 **FastAPI-MCP now supports Streamable HTTP transport.** HTTP transport is now the recommended approach, following the specification that positions HTTP as the standard while maintaining SSE for backwards compatibility. ### ⚠️ Breaking Changes - **`mount()` method is deprecated** and will be removed in a future version. Use `mount_http()` for HTTP transport (recommended) or `mount_sse()` for SSE transport. ### Added - 🎉 **Streamable HTTP Transport Support** - New `mount_http()` met | | `v0.4.0` | 2025-07-28 | Low | 🚀 **FastAPI-MCP now supports Streamable HTTP transport.** HTTP transport is now the recommended approach, following the specification that positions HTTP as the standard while maintaining SSE for backwards compatibility. ### ⚠️ Breaking Changes - **`mount()` method is deprecated** and will be removed in a future version. Use `mount_http()` for HTTP transport (recommended) or `mount_sse()` for SSE transport. ### Added - 🎉 **Streamable HTTP Transport Support** - New `mount_http()` met | | `v0.4.0` | 2025-07-28 | Low | 🚀 **FastAPI-MCP now supports Streamable HTTP transport.** HTTP transport is now the recommended approach, following the specification that positions HTTP as the standard while maintaining SSE for backwards compatibility. ### ⚠️ Breaking Changes - **`mount()` method is deprecated** and will be removed in a future version. Use `mount_http()` for HTTP transport (recommended) or `mount_sse()` for SSE transport. ### Added - 🎉 **Streamable HTTP Transport Support** - New `mount_http()` met | | `v0.4.0` | 2025-07-28 | Low | 🚀 **FastAPI-MCP now supports Streamable HTTP transport.** HTTP transport is now the recommended approach, following the specification that positions HTTP as the standard while maintaining SSE for backwards compatibility. ### ⚠️ Breaking Changes - **`mount()` method is deprecated** and will be removed in a future version. Use `mount_http()` for HTTP transport (recommended) or `mount_sse()` for SSE transport. ### Added - 🎉 **Streamable HTTP Transport Support** - New `mount_http()` met | ## Citation - HTML: https://www.freshcrate.ai/projects/fastapi-mcp - Markdown: https://www.freshcrate.ai/projects/fastapi-mcp.md - Dependencies JSON: https://www.freshcrate.ai/api/projects/fastapi-mcp/deps _Generated by freshcrate.ai. Indexes pypi releases for AI-agent ecosystem packages._