# fastmcp | Prefect | Knowledge Base | Instagit

🚀 The fast, Pythonic way to build MCP servers and clients.

GitHub Stars: 26.7k

Repository: https://github.com/PrefectHQ/fastmcp

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## Articles

### [FastMCP Error Masking: How to Protect Sensitive Information in Production](/PrefectHQ/fastmcp/how-does-fastmcp-handle-error-masking-for-sensitive-information)

Learn how FastMCP's mask_error_details config prevents sensitive data leaks in production. Protect your information with this powerful error masking feature.

- Tags: how-to-guide
- Published: 2026-07-21