Fastapi_mcp

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fastapi_mcp is an AI Agents & Automation tool that exposes FastAPI endpoints as Model Context Protocol (MCP) tools. It simplifies the integration of FastAPI applications with MCP, offering built-in authentication and native FastAPI dependencies.

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At a glance

Pricing

Open Source

Free tier

Yes

API

Yes

Skill level

Technical

About

What is fastapi_mcp?

fastapi_mcp is an open-source library designed to seamlessly integrate FastAPI applications with the Model Context Protocol (MCP). It allows developers to expose their existing FastAPI endpoints as MCP tools, complete with authentication built directly into their existing FastAPI dependencies. This FastAPI-native approach avoids simple OpenAPI conversion, ensuring efficient communication via FastAPI's ASGI interface and preserving request/response model schemas and documentation. It supports flexible deployment, allowing the MCP server to be mounted to the same app or deployed separately, minimizing friction when adding MCP capabilities to existing FastAPI services.

Best used for

Ideal for developers who need to expose their FastAPI endpoints as AI agent tools, secure these tools with existing authentication, and integrate them into a Model Context Protocol ecosystem. Especially valuable for those seeking a FastAPI-native solution that preserves schemas and documentation.

Common actions

expose API endpoints

integrate with MCP

secure AI tools

automate FastAPI deployment

open-sourcecollaborationworkflowsautomated workflow"AI Agents"low-code/no-codegithub copilotdeepfakeface swapping

Capabilities

Key features

Built-in authentication
FastAPI-native integration
Preserves schemas
Flexible deployment
ASGI transport

Target Audience

developer

Integrations

Not yet documented

Pricing & Plans

Open Source

Free

FAQs

What is the Model Context Protocol (MCP)?

The Model Context Protocol (MCP) is a standard for exposing tools that AI models can interact with. fastapi_mcp helps developers convert their FastAPI endpoints into these MCP-compliant tools, enabling seamless integration with AI agents and systems that understand the protocol.

Does fastapi_mcp require a separate server for the MCP tools?

No, fastapi_mcp offers flexible deployment options. You can mount the MCP server directly to your existing FastAPI application, or you can choose to deploy it separately if your architecture requires it. This flexibility ensures minimal friction.

How does fastapi_mcp handle authentication for exposed endpoints?

fastapi_mcp leverages your existing FastAPI dependencies for authentication and authorization. This means you can secure your MCP endpoints using the same familiar FastAPI `Depends()` mechanisms you already use, without needing to re-implement security logic.

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