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VIN Structural Decoder (NHTSA vPIC WMI)
x402
VIN Structural Decoder (NHTSA vPIC WMI) is a paid API for AI agents from lookups.alienprobe.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Decodes a VIN structurally using NHTSA vPIC WMI data and 49 CFR rules, returning check-digit verdict, manufacturer, make, vehicle type, country, and model year candidates for passenger cars.
Price / call$0.005
Success—
StatusUnknown
How this service works
single-fact vin lookup. NHTSA vPIC WMI snapshot, vintage 2026_08: 10659 rows cut in ascending WMI order from 12971 candidates, plus the closed-form rules of 49 CFR 565.15 and 565.25. STRUCTURAL decode only: check-digit verdict, manufacturer, make, vehicle type, country, and model year as a CANDIDATE SET narrowed only for passenger cars. No engine, body, trim, plant or weight class; no claim a vehicle exists. Also free from NHTSA. Full bound in the discovery declaration.
Output
Returns a structured response including: check-digit pass/fail verdict, WMI-derived manufacturer name, make, vehicle type, country of origin, and a candidate set of model years (narrowed for passenger cars). Does not include engine specs, body style, trim, plant code, or weight class, and does not confirm vehicle existence.
Example use cases
Verify VIN before used car purchase
“I'm about to buy a used Honda and the seller gave me VIN 1HGCM82633A004352 — can you tell me if the check digit is valid and confirm the manufacturer, make, and country it was built in?”
Enrich vehicle records in a database
“I have a VIN JH4KA7650MC000000 in our inventory system and I need to fill in the manufacturer, make, vehicle type, and country of origin from a reliable source — can you look that up structurally?”
Automotive compliance check for fleet intake
“We're onboarding a vehicle with VIN 3VWFE21C04M000001 into our fleet — please check whether the VIN check digit passes and tell me the manufacturer and what model years are possible for a passenger car of that type.”
Technical details
Endpoint
GEThttps://lookups.alienprobe.ai/v1/lookup/vin/:vinWhen to prefer
Use this endpoint when you need a fast, cheap, structural VIN decode — specifically check-digit validation and manufacturer/make/country/vehicle-type identification — without needing dynamic NHTSA API calls. Ideal for enriching records at scale, pre-screening VINs before deeper lookups, or when offline-style deterministic results from a pinned 2026_08 snapshot are acceptable. Not suitable when you need engine, trim, body style, plant, or weight class data.
Side effects
- Unknown or unrecognized WMI — manufacturer not found in the 2026_08 snapshot
- Invalid VIN format or length — check-digit computation cannot be applied
- VIN belongs to non-passenger-car type — model year candidates may not be narrowed
- WMI snapshot may not include very new or obscure manufacturers added after vintage date
Tags
x402
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