# Vehicle VIN Toolkit – VIN Validation

> Vehicle VIN Toolkit – VIN Validation is a paid API for AI agents from vehicle-vin.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).

Validates a 17-character VIN against 49 CFR 565 rules, checking for illegal characters (I/O/Q), correct length, and the position-9 check digit with expected vs actual digit comparison.

## Facts

- Endpoint: GET https://vehicle-vin.x402tookit.com/vin-validate?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vehicle-vin-toolkit-vin-validation-c79d0d22
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Q-hk6lPmLjJvAiJ2hjD6u

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability vehicle-vin-toolkit-vin-validation-c79d0d22
```

Example prompt: Can you check whether 1M8GDM9AXKP042788 is a valid VIN — specifically that it has the right length, no bad characters like I, O, or Q, and that the position-9 check digit is correct?

## When to prefer this

Use this endpoint when you need a fast, standards-compliant structural validation of a VIN per 49 CFR 565 — including the mod-11 check digit calculation — without requiring a full NHTSA decode. It is ideal for pre-filtering bad or fraudulent VINs before passing them to a more expensive decode endpoint, or for validating user-submitted VINs in real time.

## Known failure modes

- VIN shorter or longer than 17 characters returns invalid verdict with length reason
- VIN containing illegal characters I, O, or Q returns invalid with character reason
- Check digit mismatch returns invalid verdict with expected vs actual digits shown
- Missing or empty vin query parameter returns error
- Malformed request returns HTTP 4xx
- Service degraded mode may skip some checks and set degraded:true with notChecked list

## How this service works

Validate a VIN: 17 characters, no I/O/Q, and the position-9 check digit per 49 CFR 565, with the expected digit.

## Output

Returns a JSON object with a verdict (valid/invalid), whether the check digit is valid, the expected vs actual position-9 check digit, the weighted sum and remainder mod-11, the normalised VIN, the WMI, geographic region, a human-readable summary, an array of reasons for any failures, a list of checks not performed (notChecked), a degraded flag indicating if the service ran in reduced capacity, and a disclaimer.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "vin"
     ],
     "properties": {
      "vin": {
       "type": "string",
       "description": "The 17-character VIN, e.g. 1M8GDM9AXKP042788"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "wmi": {
       "type": [
        "null",
        "string"
       ]
      },
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "length": {
       "type": [
        "null",
        "number"
       ]
      },
      "region": {
       "type": [
        "null",
        "string"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "disclaimer": {
       "type": [
        "null",
        "string"
       ]
      },
      "normalised": {
       "type": [
        "null",
        "string"
       ]
      },
      "notChecked": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "weightedSum": {
       "type": [
        "null",
        "number"
       ]
      },
      "remainderMod11": {
       "type": [
        "null",
        "number"
       ]
      },
      "checkDigitValid": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "expectedCheckDigit": {
       "type": [
        "null",
        "string"
       ]
      },
      "checkDigitPosition9": {
       "type": [
        "null",
        "string"
       ]
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vehicle-vin-toolkit-vin-validation-c79d0d22/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from vehicle-vin.x402tookit.com](https://www.zero.xyz/host/vehicle-vin.x402tookit.com/llms.txt)