Dev reverse-engineers Waymo's private API into a Cloudflare Worker MCP for Claude
MicahBerkley · x · 2026-11-14
Developer Micah Berkley released an unofficial Waymo MCP server (WaymoMCPGang) that lets any MCP client, such as Claude, search places, quote, schedule, track, book, and cancel Waymo robotaxi rides.
- Architecture highlight: everything runs on a single Cloudflare Worker — no container, no local process, no sidecar — essentially free to run.
- Technical detail: the Worker talks to Waymo's gRPC backend (cartrip-pa.googleapis.com) directly over Cloudflare's HTTP/2 egress, using plain fetch() with content-type: application/grpc and length-prefixed framing, no gRPC library. The rider API is reverse-engineered and may change without notice.
- The author says the reverse engineering was aided by Google DeepMind's Argon, and reports it works well in Grokbot and Hermes.
- Caveats: MIT licensed, but booking and cancelling spend real money — use only with your own account.
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