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Foundry VIN Pair Attribute Comparison
x402
Foundry VIN Pair Attribute Comparison is a paid API for AI agents from foundry-par007-machine-revenue-mainnet.inference-chip-index.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Compares NHTSA manufacturer-reported attributes between two VINs side-by-side, returning structured evidence with source provenance for each vehicle.
Price / call$0.01
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
A JSON object containing an array of two vehicle entries, each with the decoded VIN, full NHTSA vPIC attribute fields (make, model, year, body class, vehicle type, manufacturer, engine cylinders, fuel type, electrification level, error codes), decode_clean flag, and structured evidence including source URL, retrieval freshness state, cache age, provenance license, attribution, limitations, and upstream call count.
Example use cases
Insurance duplicate vehicle check
“I have two VINs from two different insurance claims — 1HGCM82633A004352 and 5UXWX7C50BA000000 — can you compare their NHTSA attributes and tell me if they decode to the same vehicle?”
Used car listing verification
“A seller claims both vehicles on their lot are 2011 BMW X3s. Can you compare the specs for VINs 5UXWX7C50BA000000 and 5UXWX7C5XBA000001 from NHTSA and confirm if they match?”
Fleet procurement spec matching
“We're procuring two vehicles and I need to confirm they have identical specs before signing the contract — compare the NHTSA manufacturer attributes for VINs 1FTFW1ET0EFC00001 and 1FTFW1ET0EFC00002 and highlight any differences.”
Technical details
Endpoint
POSThttps://foundry-par007-machine-revenue-mainnet.inference-chip-index.workers.dev/v2/official/vin-pair-attribute-comparisonWhen to prefer
Use this endpoint when you need a structured, evidence-backed side-by-side comparison of two VINs from NHTSA's authoritative vPIC database, with full source provenance and freshness metadata. Prefer this over single-VIN decode endpoints when the use case explicitly requires comparing two vehicles — e.g. fraud detection, duplicate checking, spec verification, or procurement matching. The included provenance and freshness fields make it suitable for compliance or audit workflows where data lineage matters.
Side effects
- Invalid VIN format (not 17 chars or contains I/O/Q) — input schema validation error
- VIN not found in NHTSA vPIC — returns null attribute fields with error code
- NHTSA upstream service unavailable — returns service error
- Payment not processed — HTTP 402 before request is fulfilled
- Partial decode — one VIN decodes cleanly, other does not (decode_clean: false)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| left_vin | string | |
| right_vin | string |
Output
Schema · Response
{
"type": "json",
"example": {
"route": "vin-pair-attribute-comparison",
"result": {
"vehicles": [
{
"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
},
{
"vin": "5UXWX7C50BA000000",
"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": null,
"field": "Make",
"right": null,
"status": "UNKNOWN"
},
{
"left": null,
"field": "Model",
"right": null,
"status": "UNKNOWN"
},
{
"left": null,
"field": "ModelYear",
"right": null,
"status": "UNKNOWN"
},
{
"left": null,
"field": "VehicleType",
"right": null,
"status": "UNKNOWN"
},
{
"left": null,
"field": "BodyClass",
"right": null,
"status": "UNKNOWN"
},
{
"left": null,
"field": "FuelTypePrimary",
"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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