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Foundry VIN Declared Attribute Mismatch
x402
Foundry VIN Declared Attribute Mismatch is a paid API for AI agents from foundry-par007-machine-revenue-mainnet.inference-chip-index.workers.dev, paid per call via x402, $0.006/call, status unknown (last checked 2026-09-14).
Checks a VIN against NHTSA vPIC records and reports whether declared vehicle attributes (Make, Model, Year, etc.) match the official manufacturer-reported values.
Price / call$0.006
Success—
StatusUnknown
How this service works
Pay-per-request evidence and data tools: CSV validation and reconciliation, DNS/email configuration evidence, and bounded official weather, earthquake, vehicle, company and study records. Exact USDC prices, explicit JSON contracts and source provenance. No mailbox, ownership, medical or safety guarantees.
Output
Returns a JSON object with per-field comparison results (MATCH, MISMATCH, or UNKNOWN) between the declared attributes and NHTSA vPIC decoded values, the raw normalized NHTSA record, source provenance (license, terms URL, attribution), freshness metadata (retrieval timestamp, cache age), and any limitations on the comparison (e.g. decode errors causing UNKNOWN status).
Example use cases
Used car listing fraud detection
“A seller is listing a 2018 Toyota Camry sedan with VIN 4T1B11HK5JU123456 — can you verify that the make, model, model year, and vehicle type actually match NHTSA's official records for that VIN?”
Vehicle intake data validation
“We just received a fleet intake form claiming VIN 5UXWX7C5XBA012345 is a 2011 BMW SUV with gasoline fuel — check if the Make BMW, ModelYear 2011, VehicleType MPV, and FuelTypePrimary Gasoline all match official NHTSA data for that VIN.”
Auto insurance application audit
“An insurance application says VIN 2C3CCAAG3FH123456 belongs to a 2015 Chrysler 300 Sedan — verify whether the Make, Model, ModelYear, and BodyClass match the official NHTSA manufacturer records for that VIN so I can flag any discrepancies.”
Technical details
Endpoint
POSThttps://foundry-par007-machine-revenue-mainnet.inference-chip-index.workers.dev/v2/official/vin-declared-attribute-mismatchWhen to prefer
Use this endpoint when you need authoritative, evidence-backed verification that declared vehicle attributes (Make, Model, Year, Body Class, Fuel Type, Vehicle Type) match official NHTSA manufacturer records for a given VIN. Prefer this over generic VIN decoders when you need structured mismatch evidence with source provenance, freshness timestamps, and explicit limitations — especially for fraud detection, compliance auditing, or data quality workflows. Not suitable for ownership, title history, recall, or safety conclusions.
Side effects
- Invalid VIN format (not 17 chars or contains I/O/Q) returns schema validation error
- VIN not found in NHTSA vPIC returns decode_clean=false with error codes, all comparisons become UNKNOWN
- NHTSA upstream service unavailable causes request failure
- Fuzzy matching not supported — exact case/Unicode normalization only, creative model name variants may show UNKNOWN
- Expected field array must have 1–6 items; empty or oversized arrays fail validation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| vin | string | |
| expected | array |
Output
Schema · Response
{
"type": "json",
"example": {
"route": "vin-declared-attribute-mismatch",
"result": {
"vehicle": {
"vin": "1HGCM82633A004352",
"evidence": {
"query": {
"vin": "5UXWX7C5*BA0",
"model_year": 2011
},
"source": "NHTSA vPIC",
"freshness": {
"state": "CURRENT_RETRIEVAL",
"retrievedAt": "2026-09-06T00:00:00Z",
"cacheAgeSeconds": 0,
"maximumCacheSeconds": 0,
"recordAgeIsNotRetrievalAge": true
},
"sourceUrl": "https://vpic.nhtsa.dot.gov",
"observedAt": "2026-09-06T00:00:00Z",
"provenance": {
"license": "Public vPIC Open Data API; no licensing or registration requirement",
"termsUrl": "https://vpic.nhtsa.dot.gov/api/Home/Index/FAQ",
"truncated": false,
"attribution": "NHTSA vPIC; manufacturer-reported vehicle attributes",
"limitations": [
"Synthetic example only; identifiers and null values illustrate fields, not a live observation."
],
"modifications": "Selected factual fields, normalized names and bounded result count; no source ownership claimed.",
"upstreamCalls": 1,
"documentationUrl": "https://vpic.nhtsa.dot.gov/api/"
},
"sourceUpdatedAt": null,
"normalizedResult": [
{
"VIN": null,
"Make": null,
"Model": null,
"BodyClass": null,
"ErrorCode": null,
"ErrorText": null,
"ModelYear": null,
"VehicleType": null,
"Manufacturer": null,
"EngineCylinders": null,
"FuelTypePrimary": null,
"ElectrificationLevel": null
}
],
"sourceProcessedAt": null,
"rawSourceIdentifiers": []
},
"decode_clean": false
},
"comparisons": [
{
"left": "HONDA",
"field": "Make",
"right": null,
"status": "UNKNOWN"
}
],
"limitations": [
"Manufacturer-reported NHTSA decode only; no ownership, title, history, recall, safety or identity conclusion.",
"Nonzero or missing decode error codes make all attribute comparisons UNKNOWN; source errors are retained.",
"Case, Unicode compatibility and whitespace normalization only. No fuzzy model matching.",
"Synthetic example only."
],
"observed_at": "2026-09-06T00:00:00Z"
},
"observed_at": "2026-09-06T00:00:00Z"
}
}Tags
x402
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