mcp-builder
Installation
Summary
Build and deploy MCP servers in Python using FastMCP with tools, resources, and prompts.
- Scaffolds a working Python MCP server from a description; supports tools (callable functions), resources (readable data), and prompts (reusable templates)
- Includes local testing modes (direct run, dev mode with auto-reload, HTTP transport) and MCP Inspector integration
- Deploys to FastMCP Cloud, Docker, or Cloudflare Workers; pre-deploy checklist catches common issues like missing module-level server instances and hardcoded secrets
- Provides 30+ documented error patterns, CLI command reference, production patterns (auth, middleware, storage), and async test templates
SKILL.md
MCP Builder
Build a working MCP server from a description of the tools you need. Produces a deployable Python server using FastMCP.
Workflow
Step 1: Define What to Expose
Ask what the server needs to provide:
- Tools -- Functions Claude can call (API wrappers, calculations, file operations)
- Resources -- Data Claude can read (database records, config, documents)
- Prompts -- Reusable prompt templates with parameters
A brief like "MCP server for querying our customer database" is enough.
Step 2: Scaffold the Server
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