Per-call vehicle diagnostics for agents — a clean-room OBD-II fault-code reference (~12,000 codes, reworded from open/public sources with per-row licence), plus NHTSA recalls, TSBs & live VIN decode. Pay-per-call in USDC on Base (x402 v1+v2).
| Endpoint | Price | What it returns |
|---|---|---|
| /dtc?code=P0301&make=TOYOTA | $0.006 | Fault-code meaning + affected makes, with source & licence |
| /recalls?make=FORD&model=F-150&year=2018 | $0.005 | NHTSA safety recalls |
| /tsbs?make=TOYOTA&model=CAMRY&year=2019 | $0.005 | NHTSA technical service bulletins |
| /vin?vin=1HGCM82633A004352 | $0.005 | VIN decode (NHTSA vPIC) |
Payment: send an X-PAYMENT header (x402 exact scheme, USDC on Base). Without it, paid routes return a 402 challenge. Free: /health, /licenses, /llms.txt, /server.json, and MCP initialize/tools/list. We never guess a code meaning — unknown codes return not_found. Data provenance: /licenses.