Fastify

Name: Fastify
Author: GitHub Actions

@modelcontextprotocol/fastify · by GitHub Actions

Fastify adapters for the Model Context Protocol TypeScript server SDK - Fastify middleware

22.6k/wk 8 tools GitHub npm

No known CVEs

No license

Actively maintained

Last commit 0d ago

Works with most clients

Transport: stdio, http

8 tools · ~326 tok

Grade A · 0.2% of 200K ctx

MCPpedia last refreshed this data 15h ago

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Fastify is an MCP server that fastify adapters for the Model Context Protocol TypeScript server SDK - Fastify middleware. Its tool list has not been published yet over stdio and http, requires no API key, and scores 89/100 on MCPpedia's security, maintenance and efficiency rubric.

Developer Tools AI / ML

Step 1

Install in your client

Config is the same across clients - only the file and path differ.

Supported in Claude Desktopstdio, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "fastify": {
      "args": [
        "-y",
        "@modelcontextprotocol/fastify"
      ],
      "command": "npx"
    }
  }
}

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[![MCPpedia Score](https://mcppedia.org/api/badge/fastify)](https://mcppedia.org/s/fastify)

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What Fastify does

This is the main branch — v2 of the SDK (@modelcontextprotocol/server, @modelcontextprotocol/client), implementing the 2026-07-28 MCP spec. > Have feedback? Please open a v2 issue — it is the most useful thing you can do for the SDK right now. The v2 documentation starts with a ten-minute server tutorial. > v2 is the stable release line, released alongside the 2026-07-28 spec. v1.x continues to receive bug fixes and security updates for at least 6 months after v2's release. v1 documentation: t

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked - your result helps other developers.

npx -y '@modelcontextprotocol/fastify' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Scored, not listed

Why this score

Five weighted categories - click any category to see the underlying evidence.

Score breakdown

89/100across 5 weighted dimensions

How we score →

0255075100

−11

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked @modelcontextprotocol/fastify against OSV.dev.

Inventory

Tools (8)

Click any tool to inspect its schema.

~326 tokens total

Community

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Frequently Asked Questions

Is Fastify safe to use?: Fastify has no known CVEs as of the latest MCPpedia security scan. Authentication requirements were not detected automatically - check the project's documentation before connecting in a shared environment.
How do I install Fastify?: Fastify supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can Fastify do?: Fastify provides 8 tools: ServerResponse, Overview, Packages, Installation, Client and 3 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with Fastify?: Fastify is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.
Is Fastify actively maintained?: Fastify is actively maintained - last commit was 0 days ago.

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Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Frequently Asked Questions

Is Fastify safe to use?

Fastify has no known CVEs as of the latest MCPpedia security scan. Authentication requirements were not detected automatically - check the project's documentation before connecting in a shared environment.

How do I install Fastify?

Fastify supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can Fastify do?

Fastify provides 8 tools: ServerResponse, Overview, Packages, Installation, Client and 3 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with Fastify?

Fastify is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.

Is Fastify actively maintained?

Fastify is actively maintained - last commit was 0 days ago.