MCP Builder
MCP Builder is a Claude Skill for api integration, published by anthropics.
Anthropic's official Claude Skill for designing, implementing, reviewing, and evaluating high-quality MCP servers in Python or TypeScript.
Is it any good?
Effectiveness · benchmark pending
We haven't benchmarked MCP Builder yet, so its score is provisional — computed from safety, maintenance, and documentation only, with popularity given no weight. When we benchmark it, we measure whether it produces materially better output than a frontier model alone, and that result leads the score. How we measure.
About MCP Builder
Description · AI-summarised from the anthropics README
MCP Builder is a four-phase guide for building Model Context Protocol servers: research and planning, implementation, review and testing with MCP Inspector, and evaluation creation. It covers FastMCP (Python) and the official TypeScript MCP SDK, with reference material on tool design, structured output, auth, and pagination.
Where it fits
Browse related skills
Install MCP Builder
Install
Install via Claude Skill
claude skills add @anthropics/anthropic-mcp-builderInstall with your AI
Zero install · paste into ChatGPT, Claude, Cursor…
Install the "MCP Builder" skill into my project by following all instructions at https://skillsdirectory.co/s/anthropic-mcp-builder
Your assistant reads /s/anthropic-mcp-builder and follows it — fetching the files from the source, placing them, and confirming before it runs anything. No account needed. How this works.
Frequently asked
FAQ
What does MCP Builder do?
Anthropic's official Claude Skill for designing, implementing, reviewing, and evaluating high-quality MCP servers in Python or TypeScript.
How do I install MCP Builder?
MCP Builder is a Claude Skill. Primary install path: claude skills add @anthropics/anthropic-mcp-builder
What is the Skill Score for MCP Builder?
MCP Builder has a Skill Score of 7.7/10 (High Quality). It is currently a provisional score — MCP Builder hasn't been benchmarked yet, so it weights safety 55/100 (40%), maintenance 92/100 (30%), and documentation 85/100 (30%). Popularity carries zero weight until effectiveness is measured. See methodology.
Is MCP Builder free?
MCP Builder is published under the Apache-2.0 license. See the vendor's source repository for any usage limits or paid tiers.
Related skills in API integration
Related
Copilot Extensions Preview SDK (JS)
Official JavaScript SDK that handles request verification, response formatting, and prompt streaming for Copilot Extensions.
mcp-use
Complete MCP framework with SDKs for TypeScript and Python to build MCP servers, interactive widgets (MCP Apps), and AI agents with integrated inspector and cloud deployment.
assistant-ui
Composable React library with ChatGPT-like UX, streaming, generative UI, and multi-backend support for building AI chat interfaces fast.
Embed this score
For maintainers · always-current, links back
Put it in your README — it updates as the score changes.[](https://skillsdirectory.co/skills/anthropic-mcp-builder)
<a href="https://skillsdirectory.co/skills/anthropic-mcp-builder"><img src="https://skillsdirectory.co/badge/anthropic-mcp-builder.svg" alt="Scored by skillsdirectory" height="28" /></a>