API & agent-payable tools

Free JSON for humans & crawlers. Deep lookups are pay-per-call for autonomous agents over x402 (USDC on Base, keyless — receive by wallet address only).

Free JSON

GET /api/car?vin=1HGCM82633A004352 — NHTSA VIN decode + open recalls + complaints + ratings
GET /api/car?make=honda&model=accord&year=2013 — by make/model/year
GET /api/bike?serial=WTU123456789 — Bike Index stolen lookup
GET /api/bike?query=trek+marlin — by make/model
GET /api/device?device=DreamStation+CPAP — openFDA device recall lookup
GET /api/phone?imei=358751051234561 — keyless IMEI/TAC decode + Luhn validation + honest blacklist coverage note
GET /api/boat?hin=XXXXXXXXXXXX — structural HIN decode + USCG PSIX documentation status + CPSC marine recalls (keyless)
GET /api/boat?name=LIBERTY — by vessel name (USCG PSIX)

Agent-payable (x402 over MCP)

POST /mcp — JSON-RPC. Tools: car_history_check ($0.01), boat_check ($0.01), phone_imei_check ($0.005), bike_stolen_check ($0.005), device_recall_check ($0.01), verify_preview (free).
GET /.well-known/x402 — machine descriptor · GET /llms.txt — agent guide
Paid REST: GET /v1/device?device=… (HTTP 402 + free preview; full set on X-PAYMENT).

Settlement is real USDC on Base mainnet via the keyless PayAI facilitator. No signup; pay only for the premium result.