Mekler AI VIN Decoder

x402

Mekler AI VIN Decoder is a paid API for AI agents from api.mekler.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-30).

Decodes a 17-character VIN against NHTSA vPIC, returning manufacturer, model-year, and equipment fields along with source errors, missing fields, and check-digit validation.

Price / call$0.005

Seller volume →—

Success—

StatusUnknown

How this service works

Decode a complete 17-character VIN into source-linked NHTSA manufacturer, model-year and equipment fields. Return source errors, missing fields and independent check-digit evidence. Optional model year helps disambiguate the source. Coverage centers on US-market vehicles; no owner, title, accident-history, condition or valid-vehicle certification.

Output

Returns a JSON object with the decoded VIN specifications (make, model, model year, trim, series, body class, drive type, fuel type, engine size, cylinders, plant country, vehicle type, manufacturer), a check-digit validation result showing expected vs. observed digit, source error codes, a decode_complete flag, the NHTSA source URL used, an observed_at timestamp, and a limitations array explaining coverage gaps and non-certification caveats.

Example use cases

Verify used car listing accuracy

“I'm looking at a used car listed as a 2019 BMW X5 — the VIN is 5UXCR6C54KLK12345. Can you decode that VIN and tell me if the make, model, and year actually match what the seller is claiming?”

Pre-purchase check digit validation

“Before I buy this vehicle, can you check the VIN 1HGCM82633A123456 against the NHTSA database, verify the check digit is correct, and flag any source errors or missing fields?”

Fleet intake data enrichment

“I need to enrich our fleet records — can you decode VIN JN1AZ4EH5FM730432 for a 2015 model year and pull back all the NHTSA specs like engine size, cylinders, fuel type, and drive type?”

Technical details

Endpoint

POSThttps://api.mekler.ai/v1/data/vehicles/check-vin?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need structured NHTSA manufacturer and equipment fields decoded from a raw 17-character VIN, particularly for US-market vehicles, and when you also need explicit check-digit validation and source error transparency. Prefer it over generic VIN lookup tools when you need source-linked, NHTSA-authoritative data with clear limitations stated (not ownership, accident history, or valid-vehicle certification). It is ideal for pre-purchase due diligence, fleet intake enrichment, or compliance workflows where auditability of the decode source matters.

Side effects

Invalid VIN format (not matching ^[A-HJ-NPR-Z0-9]{17}$) — rejected before upstream call
NHTSA returns non-zero source error codes indicating unrecognized WMI or partial decode — returned as completed diagnostic with errors listed
Check digit mismatch — returned as evidence in check_digit object, not a blocking error
Model year outside 1981–2100 range — input validation failure
Non-US-market vehicle with limited NHTSA coverage — partial decode with limitations noted
Network or upstream NHTSA API timeout — service error response

Input

Schema · Request body

Field	Type	Description
vin	string
model_year	integer
request_id	string

Output

Schema · Response

{
  "type": "json",
  "example": {
    "vin": "5UXWX7C5XBA123456",
    "source": "NHTSA vPIC",
    "status": "ok",
    "source_url": "https://vpic.nhtsa.dot.gov/api/vehicles/DecodeVinValues/5UXWX7C5XBA123456?format=json&modelyear=2011",
    "check_digit": {
      "matches": false,
      "expected": "7",
      "observed": "X",
      "north_american_rule_applicable": true
    },
    "limitations": [
      "Manufacturer-submitted specifications for vehicles intended for the US market; other markets can have limited coverage.",
      "A decoded field is not evidence of ownership, title, accident history, condition or installed equipment today.",
      "Inspect source errors and check-digit evidence. A partial or invalid source decode is a completed diagnostic, not a valid-vehicle certification."
    ],
    "observed_at": "2026-10-20T00:00:00Z",
    "source_message": "Synthetic fixture only",
    "specifications": {
      "make": "SYNTHETIC",
      "trim": null,
      "model": "Example",
      "series": null,
      "fuel_type": null,
      "body_class": null,
      "drive_type": null,
      "model_year": "2011",
      "manufacturer": null,
      "vehicle_type": null,
      "engine_liters": null,
      "plant_country": null,
      "engine_cylinders": null
    },
    "decode_complete": true,
    "source_error_codes": [
      "0"
    ],
    "requested_model_year": 2011
  }
}

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