DevelopmentOfficial · Anthropic

mcp-builder

Build high-quality MCP servers

High trustView source ↗

Install mcp-builder

npx skills add anthropics/skills --skill mcp-builder

Skills install into ~/.claude/skills/ and load on demand. Other SKILL.md tools (Cursor, Codex, Gemini CLI) use the same files.

What it does

Scaffolds and guides the creation of well-structured Model Context Protocol servers — the bridge for connecting Claude to external tools and data. Official Anthropic skill; pairs naturally with the MCP directory.

  • custom integrations
  • extending Claude

Trust & safety

Score 95/100 · High trust
Verified Runs code Local only
  • Published by Anthropic in the official skills repo.
  • Manually reviewed and verified by Loadout.
  • No network access — runs locally only.
  • Ships executable scripts — read them before first run.

Heuristic signal based on provenance and capabilities — not a security audit. Always review a skill’s SKILL.md and scripts before first run.

Scan any SKILL.md yourself →

Works with

  • Claude Code
  • Claude.ai
  • Claude API
  • Cursor

Pairs well with these MCP servers

Skills bring the know-how; MCP servers bring the connections.

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