openapi: 3.0.1
info:
  title: Vincario VIN Decoder Account Stolen Check API
  description: 'REST API for the vindecoder.eu service operated by Vincario. The API decodes a Vehicle Identification Number (VIN) into a full vehicle specification and also provides vehicle market value, real-time stolen-vehicle checks, the list of decodable vehicle details, and the remaining account balance.


    Authentication uses an API key (id) and a secret key. Each request carries a per-request control sum in the URL path. The control sum is the first 10 characters of the SHA1 hash of the pipe-delimited string `{lookup}|{id}|{apikey}|{secretkey}`, where `{lookup}` is the uppercased VIN for VIN-based endpoints (decode, vininfo, vehicle-market-value, stolencheck) and the API key itself for the balance endpoint, and `{id}` is the endpoint identifier (for example `decode`, `vininfo`, `vehicle-market-value`, `stolencheck`, `balance`). The secret key is never transmitted; it is only used to derive the control sum. The path layout is `/{apikey}/{controlsum}/{id}/{vin}.json`.'
  termsOfService: https://vindecoder.eu/terms
  contact:
    name: Vincario Support
    url: https://vincario.com
  version: '3.2'
servers:
- url: https://api.vindecoder.eu/3.2
  description: Vincario VIN Decoder API v3.2
security:
- signedPath: []
tags:
- name: Stolen Check
paths:
  /{apikey}/{controlsum}/stolencheck/{vin}.json:
    get:
      operationId: stolenCheck
      tags:
      - Stolen Check
      summary: Check a VIN against stolen-vehicle databases.
      description: Performs a real-time check of the VIN against national police databases of stolen vehicles (Czech Republic, Hungary, Lithuania, Romania, Slovenia, Slovakia) and Vincario's own database. The control sum is computed from `{VIN}|stolencheck|{apikey}|{secretkey}`.
      parameters:
      - $ref: '#/components/parameters/ApiKey'
      - $ref: '#/components/parameters/ControlSum'
      - $ref: '#/components/parameters/Vin'
      responses:
        '200':
          description: Stolen-check result for the VIN.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/StolenCheckResponse'
        '400':
          $ref: '#/components/responses/Error'
        '403':
          $ref: '#/components/responses/Error'
components:
  parameters:
    ApiKey:
      name: apikey
      in: path
      required: true
      description: The account API key (id).
      schema:
        type: string
    Vin:
      name: vin
      in: path
      required: true
      description: The 17-character Vehicle Identification Number (uppercase).
      schema:
        type: string
        minLength: 11
        maxLength: 17
        example: WF0MXXGBWM8R43240
    ControlSum:
      name: controlsum
      in: path
      required: true
      description: First 10 characters of `sha1("{lookup}|{id}|{apikey}|{secretkey}")`.
      schema:
        type: string
        minLength: 10
        maxLength: 10
  responses:
    Error:
      description: Error response (invalid VIN, bad control sum, or insufficient balance).
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  schemas:
    ErrorResponse:
      type: object
      properties:
        error:
          type: string
          description: Human-readable error message.
          example: Invalid VIN
        code:
          type: integer
          description: Error code.
          example: 400
    StolenCheckResponse:
      type: object
      properties:
        vin:
          type: string
          example: WF0MXXGBWM8R43240
        stolen:
          type: boolean
          description: Whether the VIN was found in any stolen-vehicle database.
          example: false
        records:
          type: array
          description: Matching stolen-vehicle records, if any.
          items:
            type: object
            properties:
              source:
                type: string
                description: The database/source where the record was found.
                example: Czech Republic Police
              date:
                type: string
                format: date
  securitySchemes:
    signedPath:
      type: apiKey
      in: query
      name: controlsum
      description: Path-signed authentication. The API key (id) and a per-request SHA1 control sum are passed as URL path segments rather than headers or query parameters; this scheme is declared as a placeholder because OpenAPI 3.0 cannot natively express path-segment-based signed credentials. The control sum is `substr(sha1("{lookup}|{id}|{apikey}|{secretkey}"), 0, 10)`. The secret key is never sent over the wire.