FastMCP vs mcp-use
A side-by-side comparison of FastMCP and mcp-use, two MCP tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
| Attribute | FastMCP | mcp-use |
|---|---|---|
| Category | MCP | MCP |
| Pricing (differs) | FREEMIUM | FREE |
| License (differs) | Open core | Open source |
| Deployment | — | — |
| Platforms | API, CLI | API, CLI |
| Model support | Model-agnostic | Model-agnostic |
| Vendor (differs) | Prefect | Manufact |
| Capabilities (differs) |
|
|
The honest brief
FastMCP
v2 is the standalone superset most Python MCP servers build on; v1 was folded into the official MCP Python SDK.
- Decorate a function, get an MCP tool
- Handles transport, auth, lifecycle
- Apache-2.0, free to self-host
- Pythonic, low boilerplate
- Python-only
- Managed hosting is a separate paid product
- MCP spec still evolving
mcp-use
Adds hot reload, dev tools, and UI components on top of the official MCP SDK, and connects any LLM to any server in a few lines of code.
- TypeScript and Python SDKs
- Hot reload and dev tooling
- Builds tool-using agents
- MIT licensed, widely adopted
- Cloud deployment is a paid Manufact product
- Opinionated over the low-level SDK
- Still maturing API surface
When to pick which
Both cover MCP server and Tool / function calling.
Pick mcp-use if you need Agent framework.
- Agent framework (primary capability)
FastMCP leans on MCP server as a headline capability; mcp-use treats it as secondary.
- MCP server (primary capability)
They also differ on:
- Pricing
- FREEMIUM · FREE
- License
- Open core · Open source