FastMCP Python Framework

关于

FastMCP is a high-level Python framework designed to simplify the creation of production-grade Model Context Protocol (MCP) servers. It provides a decorator-based interface for defining tools, resources, and prompts, enabling Claude and other LLMs to interact with custom code and data sources seamlessly. With advanced features like protocol-native background tasks, session-scoped state, agentic sampling, and multiple storage backends (Redis, Disk, etc.), FastMCP manages protocol complexities and prevents common implementation errors, making it ideal for developers building sophisticated AI agents and integrations.

主要功能

• Multiple storage backends including Redis, Disk, and encrypted stores
• Decorator-based tool, resource, and prompt registration
• Protocol-native background tasks with progress tracking
• Agentic sampling allowing LLMs to call tools during reasoning
• Advanced provider architecture with hot-reloading and OpenAPI support
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使用场景

• Building data-rich resources that provide live context to LLM conversations
• Implementing long-running agentic workflows with asynchronous progress reporting
• Exposing internal business logic and APIs to Claude as executable tools