FastMCP
FastMCP is What changes when you upgrade to FastMCP 4, which builds on the MCP Python SDK v2. It is ranked #1404 on the Dev Radar, in AI dev tools, first seen 18 days ago and shared in 1 post (1k views).
Upgrading from FastMCP 3 - FastMCP Documentation Index Fetch the complete documentation index at: /llms.txt Use this file to discover all available pages before exploring further. Skip to main content FastMCP 4 is here — built for the new MCP protocol. See what's new . FastMCP home page v4.0.5 Search... Navigation Upgrading Upgrading from FastMCP 3 Upgrading Upgrading from FastMCP 3 Copy page Copy page What changes when you upgrade to FastMCP 4, which builds on the MCP Python SDK v2 Copy page Copy page FastMCP 4 builds on the MCP Python SDK v2, and that is the source of every change in this guide. The SDK v2 makes two sweeping changes to…
What people said about FastMCP on X
FastMCP v4 is stable! https://github.com/PrefectHQ/fastmcp/releases/tag/v4.0.0 "On July 28, MCP released the 2026-07-28 protocol revision and the rewritten Python SDK v2 shipped the same day. FastMCP 4 is built on both: modern requests are sessionless and self-contained and one FastMCP 4 deployment negotiates the…
— @pamelafox, 18 days ago · 13 likes · see the post
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FastMCP in numbers
- Rank on the Dev Radar: #1404 of 1578
- Shared in 1 post by 1 account: @pamelafox
- 1k views on those posts
- First seen 18 days ago, last shared 18 days ago
- Pricing seen by Jev: open source
- Market: AI dev tools
FAQ
What is FastMCP?
What changes when you upgrade to FastMCP 4, which builds on the MCP Python SDK v2 It was first shared on X 18 days ago and is ranked #1404 on the Dev Radar.
Is FastMCP free?
It is open source.
Who shared FastMCP?
1 account on X, including @pamelafox, in 1 post totalling 1k views.
Every post is read and classified by Jev (TypeSafe): what it is, which market it belongs to, and whether the link is a real tool. 14.4k posts from 4.7k X accounts over the last 21 days, 1.6k tools, 12 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-19 21:10 UTC. Full method.