fastmcp is by PrefectHQ — not by us.
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Indexed Sep 19, 2026 · 27,759 stars at index time. Maintainers: claiming verifies your identity and unlocks a higher assurance tier. Removal requests are honored.
MCP server · for humans & their agents
fastmcp
unclaimed listingactively maintainedFreeApache-2.0
🚀 The fast, Pythonic way to build MCP servers and clients.
by Open Source Community · New publisher
Every claim on this page is refundable if it is untrue — refund policy.
PrefectHQ/fastmcp is an open-source project by PrefectHQ: 🚀 The fast, Pythonic way to build MCP servers and clients.. Indexed here so it can be found — not resold.
It is free. Get it from the upstream repository: https://github.com/PrefectHQ/fastmcp
From the project's own README (excerpt, reproduced for discovery under its Apache-2.0 license):
FastMCP 🚀
Move fast and make things.
Made with 💙 by Prefect
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The Model Context Protocol (MCP) connects LLMs to tools and data. FastMCP is a full MCP application framework for servers, clients, and interactive apps. A server starts with ordinary Python:
Why FastMCP
Building an effective MCP application is harder than it looks. FastMCP handles all of it. Declare a tool with a Python function, and the schema, validation, and documentation are generated automatically. Connect to a server with a URL, and transport negotiation, authentication, and protocol lifecycle are managed for you. You focus on your logic, and the MCP part just works: with FastMCP, best practices are built in.
That's why FastMCP is the standard framework for working with MCP. FastMCP 1.0 was incorporated into the official MCP Python SDK in 2024. Today, the actively maintained standalone project is downloaded a million times a day, and some version of FastMCP powers 70% of MCP servers across all languages.
FastMCP has three pillars:
Servers Expose tools, resources, and prompts to LLMs. Apps Give your tools interactive UIs rendered directly in the conversation. Clients Connect to any MCP server — local or remote, programmatic or CLI.
Servers wrap your Python functions into MCP-compliant tools, resources, and prompts. Clients connect to any server with full protocol support. And Apps give your tools interactive UIs rendered directly in the conversation.
Building in TypeScript? FastMCP for TypeScript is the official counterpart, built and maintained by the same team. Same pillars, same ideas, npm install @prefecthq/fastmcp-ts.
Ready to build? Start with the installation guide or jump straight to the quickstart.
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01Capabilities
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02Requirements & stack
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Stack
03Community
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04Trust Passport
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This listing is unclaimed, so publisher identity cannot be verified and it stays below the “verified” tier by design — that is a statement about the listing, not about the project’s quality. Our automated scans still ran; a maintainer who claims it unlocks identity verification.
05Versions
Full history →| Version | Channel | Released | Notes |
|---|---|---|---|
| 0.0.0 | stable | Sep 19, 2026 | Indexed listing — see the upstream repository for real release history. |