fastmcp-ts: The official FastMCP TypeScript library for building MCP servers, clients, and apps

by PrefectHQ · MCP Server · ★ 81

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

How to install fastmcp-ts

npm install @prefecthq/fastmcp-ts

Taken from the project's README on GitHub.

Security audit verdict: SAFE · quality 69/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours.

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

agentsaijavascriptllmsmcpmcp-appsmcp-clientmcp-servermcp-toolsmodel-context-protocol

Quick Facts

Stars81
Forks9
LanguageTypeScript
CategoryMCP Server
Quality Score69/100
Open Issues4
Last Updated2026-11-05
Created2026-04-03
Platformsmcp, node
Est. Tokens~16k

About fastmcp-ts

fastmcp-ts The TypeScript framework for building Model Context Protocol servers, clients, and apps. The official TypeScript counterpart to FastMCP for Python - built and maintained with 💙 by the same team at Prefect. Built on the official . Installation Servers Turn TypeScript functions into MCP tools, resources, and prompts.

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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