---
id: fastmcp-slim
version: "3.4.7"
license: Apache-2.0
license_treatment: permissive
maintenance: active
---

# fastmcp-slim — The dependency-slim FastMCP package.

License: permissive · Maintenance: active · Popularity: top 1,000 on PyPI

## Install

pip install fastmcp-slim
uv add fastmcp-slim
poetry add fastmcp-slim

## Description

<div align="center">

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<picture>
  <source width="550" media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/PrefectHQ/fastmcp/main/docs/assets/brand/f-watercolor-waves-4-dark.png">
  <source width="550" media="(prefers-color-scheme: light)" srcset="https://raw.githubusercontent.com/PrefectHQ/fastmcp/main/docs/assets/brand/f-watercolor-waves-4.png">
  <img width="550" alt="FastMCP Logo" src="https://raw.githubusercontent.com/PrefectHQ/fastmcp/main/docs/assets/brand/f-watercolor-waves-2.png">
</picture>

# FastMCP 🚀

<strong>Move fast and make things.</strong>

*Made with 💙 by [Prefect](https://www.prefect.io/)*

[![Docs](https://img.shields.io/badge/docs-gofastmcp.com-blue)](https://gofastmcp.com)
[![Discord](https://img.shields.io/badge/community-discord-5865F2?logo=discord&logoColor=white)](https://discord.gg/uu8dJCgttd)
[![PyPI -...

## AI interpretation — verify before relying

FastMCP-slim is a framework for building Model Context Protocol (MCP) servers that expose Python functions as tools, resources, and prompts to LLMs, with automatic schema generation and validation.

Verdict: FastMCP-slim is actively maintained with no known vulnerabilities, permissive Apache-2.0 licensing, and low install friction. It is production-ready for building MCP servers and clients that integrate Python functions with LLMs.

[View on SkillFed](https://skillfed.io/packages/fastmcp-slim) · [View on PyPI](https://pypi.org/project/fastmcp-slim/)