fastmcp vs mcp-use
FastMCP is the Python framework for building MCP servers; mcp-use is the TypeScript framework for building, testing and shipping MCP servers, ChatGPT plugins and Claude connectors. The real axis is Python vs TypeScript.
Side by side
| Dimension | PrefectHQ/fastmcp | mcp-use/mcp-use |
|---|---|---|
| Stars | 27,254 | 10,495 |
| Forks | 2,249 | 1,413 |
| Language | Python | TypeScript |
| Last push | 1mo ago | 1mo ago |
| License | Apache-2.0 | MIT |
| Archived | No | No |
Verdict
Both are MCP application frameworks, but the language is the deciding factor. FastMCP (Python) is the most-starred MCP server framework in our snapshot — wrap a function with a decorator and it becomes a tool, with schema, validation and docs generated automatically; it also ships clients and interactive apps. mcp-use (TypeScript) lets you build, test and ship MCP servers and connectors with fully typed Zod schemas, native React Views and a built-in Inspector, so it fits TypeScript teams that also want interactive MCP Apps (UI rendered in the conversation). Pick FastMCP if your stack is Python or you want the biggest community. Pick mcp-use if you are in TypeScript and want typed schemas plus interactive tool UIs. They are not "server vs agent" — both build servers; start from your language.
FAQ
Can I use FastMCP and mcp-use together?
Not usually on the same project — FastMCP is Python and mcp-use is TypeScript. You typically pick one based on your language.
Does mcp-use only build clients?
No. mcp-use builds MCP servers, ChatGPT plugins and Claude connectors — it is a full TypeScript framework, not just a client.
Last reviewed 2026-08-07