openapi: 3.2.0
info:
  title: AlphaLoops FMCSA Carrier Data Inspections API
  version: 1.0.0
  description: 'Fleet intelligence API for looking up FMCSA-registered carriers by DOT number, MC number, or company name. Access carrier profiles with 200+ fields, safety data, authority history, fleet equipment, inspections, crashes, news, and decision-maker contacts.


    Base URL: https://api.runalphaloops.com


    API access is available exclusively on the Enterprise plan. Contact sales at https://runalphaloops.com/contact to get your API key.'
  contact:
    name: AlphaLoops
    url: https://runalphaloops.com/contact
    email: hello@runalphaloop.com
servers:
- url: https://api.runalphaloops.com
  description: Production
security:
- bearerAuth: []
tags:
- name: Inspections
paths:
  /v1/inspections/{inspection_id}/violations:
    get:
      operationId: getInspectionViolations
      summary: Get violations for a specific inspection
      description: Retrieve all violations from a specific roadside inspection. Use the inspection report number returned from the Inspections endpoint.
      parameters:
      - name: inspection_id
        in: path
        required: true
        schema:
          type: string
        description: The inspection report number
      - $ref: '#/components/parameters/page'
      - name: limit
        in: query
        required: false
        schema:
          type: integer
          default: 25
          maximum: 100
        description: 'Results per page (default: 25, max: 100)'
      responses:
        '200':
          description: Paginated violation records
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ViolationsResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '429':
          $ref: '#/components/responses/RateLimited'
      tags:
      - Inspections
  /v1/inspections/vin/{vin}:
    get:
      operationId: getVinInspectionHistory
      summary: Get inspection history for a VIN
      description: Look up the inspection history for a VIN. Returns the unique DOT numbers the VIN has been associated with (with last date seen on each), plus the unique FIPS-coded county locations where the VIN has been inspected. Capped at the 5,000 most-recent inspections; successful responses are edge-cached for 24h.
      parameters:
      - name: vin
        in: path
        required: true
        schema:
          type: string
        description: Vehicle Identification Number (case-insensitive — normalized to uppercase server-side)
      responses:
        '200':
          description: VIN inspection history aggregated by DOT and location
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VinInspectionResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '429':
          $ref: '#/components/responses/RateLimited'
      tags:
      - Inspections
components:
  schemas:
    Violation:
      type: object
      properties:
        violation_code:
          type: string
        description:
          type: string
        oos:
          type: boolean
        unit_type:
          type: string
        basic_category:
          type: string
    Error:
      type: object
      properties:
        error:
          type: string
          description: Short error type
        message:
          type: string
          description: Human-readable description
      required:
      - error
      - message
    ViolationsResponse:
      type: object
      properties:
        inspection_id:
          type: string
        total_violations:
          type: integer
        violations:
          type: array
          items:
            $ref: '#/components/schemas/Violation'
        pagination:
          $ref: '#/components/schemas/Pagination'
    VinInspectionResponse:
      type: object
      properties:
        vin:
          type: string
        inspection_count:
          type: integer
        sample_size:
          type: integer
        truncated:
          type: boolean
          description: True when capped at 5,000 inspections; aggregations are over the returned sample.
        dot_numbers:
          type: array
          items:
            $ref: '#/components/schemas/VinDotAssociation'
        locations:
          type: array
          items:
            $ref: '#/components/schemas/VinLocation'
    VinLocation:
      type: object
      properties:
        fips:
          type: string
        state_fips:
          type: string
        county_fips:
          type: string
        county_name:
          type: string
        state_abbrev:
          type: string
        latitude:
          type: number
        longitude:
          type: number
        last_seen:
          type: string
          format: date
        inspection_count:
          type: integer
    Pagination:
      type: object
      properties:
        page:
          type: integer
        limit:
          type: integer
        total_results:
          type: integer
        total_pages:
          type: integer
    VinDotAssociation:
      type: object
      properties:
        dot_number:
          type: string
        last_seen:
          type: string
          format: date
        inspection_count:
          type: integer
  responses:
    NotFound:
      description: Carrier does not exist
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Invalid or missing API key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    RateLimited:
      description: Too many requests. Check X-RateLimit-Remaining and Retry-After headers.
      headers:
        Retry-After:
          schema:
            type: integer
          description: Seconds to wait before retrying
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  parameters:
    page:
      name: page
      in: query
      required: false
      schema:
        type: integer
        default: 1
      description: 'Page number (default: 1)'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'API key provided by AlphaLoops. Include as: Authorization: Bearer YOUR_API_KEY'