API Integration Boilerplate — MCP Starter Kit

A production-grade FastMCP template with all the plumbing pre-built: three auth patterns (static Bearer, API-key header, OAuth2 client-credentials with cached auto-refresh), a thread-safe token-bucket rate limiter, retry with exponential backoff + jitter honoring Retry-After, error handling that surfaces the API's actual message so the model can self-correct, stderr-only logging (stdout is the protocol stream — the #1 rookie MCP bug), and five example tool shapes to copy: list, get, create, update, search. Ships with a 9-point production checklist. Swap in your API's endpoints and ship.