Skill All skills & plugins / Anthropic Agent Skills
mcp-builder
Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
- Type
- Skill by Anthropic
- Catalog
- Anthropic Agent Skills
- Source
- anthropics/skills/skills/mcp-builder (10 files scanned)
- Install and details
- Agent Skills Index entry
- License
- Apache-2.0 (LICENSE file)
- Signals
- Bundled scripts
Pre-approved tools
No allowed-tools or tools list in its SKILL.md, command or agent files, so the agent asks before using tools as usual.
Hooks
No hooks.
MCP servers and apps
None.
Bundled code
2 code files (Python):
Network calls
No HTTP or socket call pattern found in the code.
Starts other programs
No subprocess, exec or eval pattern found.
Credentials referenced
No key, token or secret environment variable found in code or MCP config.
Static scan of commit dbd4588 on 2026-10-27. Signals are patterns found in the files, not a verdict: a network call can be the whole point of a skill. Read the linked lines before you decide. How the scan works.