Weather, and a worked example
The service itself is genuinely useful: current conditions, a multi-day forecast, and historical data for a location and a date range, all from Open-Meteo.
Its other job is to be the canonical Operator — the one to read when you want to see how the pattern fits together, with a real but simple domain standing in for the business logic of a working service. Every other service in this collection is this shape with different tools bolted on.
At a glance
🔓 Apache 2.0 top to bottom, every line of it
🔌 Built on FastMCP 3.4.7 — any compliant MCP client connects
🤝 Honors the DPYC Social Contract
🔑 A keypair you generate yourself is the whole of what you need
⚡ Any Lightning wallet. Wallet of Satoshi for reliability
Links
GitHub: lonniev/tollbooth-sample
🔌 Connect: tollbooth-sample.fastmcp.app/mcp









