fastmcp
Build MCP servers, clients, and apps with plain Python
All Skills in This Repository (5)
Pure Emerald Level Indicators
PrefectHQtesting-python
Automate creation and evaluation of Python tests with pytest.
PrefectHQreviewing-code
Automate structured code reviews for pull requests with actionable feedback.
PrefectHQreview-pr
Monitor Codex bot PR reviews and generate responses to feedback.
PrefectHQreview-issue
Triage external GitHub issues and gate-enabled PRs to assign or decline.
PrefectHQfastmcp-client-cli
List and invoke MCP server tools via CLI with schema validation.
Frequently Asked Questions
FAQPage SchemaHow to install FastMCP?▼
Run `npx skills add PrefectHQ/fastmcp --all -g -y` in your terminal to install all skills in this suite globally.
What is FastMCP used for?▼
FastMCP is a Python framework for building MCP servers, clients, and interactive apps. It turns plain Python functions into tools that AI models can discover and call.
How do I call tools on an MCP server from the command line?▼
Use `fastmcp list` to see a server's tools and `fastmcp call` to invoke them with simple key=value arguments. It works with URLs, local Python files, and servers already configured in your editor.
Does FastMCP work with Claude Code and Cursor?▼
Yes. FastMCP servers follow the open MCP standard, so they connect directly to Claude Code, Claude Desktop, Cursor, Gemini CLI, and other MCP-compatible clients.
Do I need to know the MCP protocol to use FastMCP?▼
No. You write ordinary Python functions with decorators, and FastMCP handles schemas, validation, authentication, and transport for you.
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