> ## Documentation Index > Fetch the complete documentation index at: https://docs.usecroma.com/llms.txt > Use this file to discover all available pages before exploring further. # RUNT Citizen by Plate > Look up the current registered owner of a Colombian vehicle in RUNT (Registro Único Nacional de Tránsito) by plate alone, and return that person's citizen record: the driver record, driving licences with categories, traffic-fine standing, procedure requests, driving-aptitude and medical certificates, CUPL registrations, SICOV validations, ANSV payments and identity validation. The owner (document type, number and name) is echoed in `owner`. `found: false` when the plate has no current natural-person owner or the owner has no record. Supports async delivery: set `Prefer: wait=N` for an inline result, pass `callback_url` to receive a POST when ready, or poll `GET /jobs/{id}`. ## OpenAPI ````yaml /api-reference/openapi.json post /co/runt/citizen-by-plate/v1 openapi: 3.1.0 info: title: Croma Marketplace API version: 1.0.0 description: >- Government-data APIs for Colombia, Peru, Mexico, United States, Brazil, and El Salvador, plus global web search. Croma normalizes public-sector data into structured JSON for product teams and AI agents. Every operation is a POST with a JSON body and an organization API key as a bearer token; every operation is an idempotent lookup and accepts an optional `Idempotency-Key` header. Paths carry their major version (`/v1`); the versioning and deprecation policy, including the `Deprecation` and `Sunset` headers a retiring endpoint sends, is at https://docs.usecroma.com/versioning. Rate limits are per organization and reported on every response (`RateLimit-Policy`, `X-RateLimit-*`): https://docs.usecroma.com/rate-limits. termsOfService: https://usecroma.com/en/terms contact: name: Croma support url: https://usecroma.com/en/support email: tomas@usecroma.com servers: - url: https://api.croma.run security: [] paths: /co/runt/citizen-by-plate/v1: post: tags: - Colombia - RUNT summary: RUNT Citizen by Plate description: >- Look up the current registered owner of a Colombian vehicle in RUNT (Registro Único Nacional de Tránsito) by plate alone, and return that person's citizen record: the driver record, driving licences with categories, traffic-fine standing, procedure requests, driving-aptitude and medical certificates, CUPL registrations, SICOV validations, ANSV payments and identity validation. The owner (document type, number and name) is echoed in `owner`. `found: false` when the plate has no current natural-person owner or the owner has no record. Supports async delivery: set `Prefer: wait=N` for an inline result, pass `callback_url` to receive a POST when ready, or poll `GET /jobs/{id}`. operationId: runt_citizen_by_plate parameters: - $ref: '#/components/parameters/IdempotencyKey' - $ref: '#/components/parameters/Prefer' requestBody: required: true content: application/json: schema: type: object required: - plate properties: plate: type: string minLength: 6 maxLength: 6 pattern: ^[A-Za-z]{3}\d{2}[A-Za-z0-9]$ description: Colombian vehicle plate, e.g. `ABC123` or `ABC12D`. callback_url: type: string format: uri description: POST the job result here when it finishes. additionalProperties: false example: plate: ABC123 responses: '200': description: Successful response headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' Idempotency-Key: $ref: '#/components/headers/Idempotency-Key' Deprecation: $ref: '#/components/headers/Deprecation' Sunset: $ref: '#/components/headers/Sunset' X-RateLimit-Limit: $ref: '#/components/headers/X-RateLimit-Limit' X-RateLimit-Remaining: $ref: '#/components/headers/X-RateLimit-Remaining' X-RateLimit-Reset: $ref: '#/components/headers/X-RateLimit-Reset' X-Cache: $ref: '#/components/headers/X-Cache' content: application/json: schema: $ref: '#/components/schemas/RuntCitizenByPlateResponse' '202': description: >- Accepted — the result is being computed asynchronously. Poll `job.status_url` (GET /jobs/{id}) or supply `callback_url` to have the result POSTed to you. Returned when `Prefer: wait` elapses before completion, or immediately when `callback_url` is set. headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' Retry-After: $ref: '#/components/headers/Retry-After' Location: description: Absolute URL to poll for job status. schema: type: string format: uri example: https://api.croma.run/jobs/run_123 X-Job-Id: description: Id of the created job. schema: type: string content: application/json: schema: $ref: '#/components/schemas/JobEnvelope' '400': description: Invalid request body headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' Idempotency-Key: $ref: '#/components/headers/Idempotency-Key' Deprecation: $ref: '#/components/headers/Deprecation' Sunset: $ref: '#/components/headers/Sunset' content: application/json: schema: $ref: '#/components/schemas/ApiError' '401': description: Missing or invalid API key headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' Idempotency-Key: $ref: '#/components/headers/Idempotency-Key' Deprecation: $ref: '#/components/headers/Deprecation' Sunset: $ref: '#/components/headers/Sunset' content: application/json: schema: $ref: '#/components/schemas/ApiError' '429': description: Rate limit exceeded headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' Idempotency-Key: $ref: '#/components/headers/Idempotency-Key' Deprecation: $ref: '#/components/headers/Deprecation' Sunset: $ref: '#/components/headers/Sunset' X-RateLimit-Limit: $ref: '#/components/headers/X-RateLimit-Limit' X-RateLimit-Remaining: $ref: '#/components/headers/X-RateLimit-Remaining' X-RateLimit-Reset: $ref: '#/components/headers/X-RateLimit-Reset' Retry-After: $ref: '#/components/headers/Retry-After' content: application/json: schema: $ref: '#/components/schemas/ApiError' '500': description: Internal error headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' Idempotency-Key: $ref: '#/components/headers/Idempotency-Key' Deprecation: $ref: '#/components/headers/Deprecation' Sunset: $ref: '#/components/headers/Sunset' content: application/json: schema: $ref: '#/components/schemas/ApiError' '502': description: Upstream source returned an error headers: X-Request-Id: $ref: '#/components/headers/X-Request-Id' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' Idempotency-Key: $ref: '#/components/headers/Idempotency-Key' Deprecation: $ref: '#/components/headers/Deprecation' Sunset: $ref: '#/components/headers/Sunset' content: application/json: schema: $ref: '#/components/schemas/ApiError' security: - bearerAuth: [] externalDocs: description: Interactive documentation and examples url: https://docs.usecroma.com/guides/colombia/runt components: parameters: IdempotencyKey: name: Idempotency-Key in: header required: false description: >- Optional client-chosen key for this request (any string up to 255 characters, e.g. a UUID). Every Croma operation is an idempotent lookup: repeating a request with the same body returns the same result and creates nothing, so retrying after a timeout or network failure is always safe. The key is echoed back in the `Idempotency-Key` response header so you can correlate a retry with its first attempt. Each attempt that reaches the API counts against the rate limit. schema: type: string maxLength: 255 example: 0f8e9a42-6b7c-4d1e-9a3f-2c5d7e8f9a0b Prefer: name: Prefer in: header required: false description: >- Set `wait=N` to hold the connection up to N seconds for an inline result. If the job finishes in time you get the normal 200 body; otherwise a 202 with a `status_url` to poll. schema: type: string example: wait=30 headers: X-Request-Id: description: Unique id for the request (req_…). Include it in support reports. schema: type: string RateLimit-Policy: description: >- Quota policy for this endpoint as an IETF RateLimit-Policy structured field, e.g. `"default";q=100;w=86400` (100 requests per 86400-second window per organization). Endpoints with an extra hourly ceiling list both policies, e.g. `"webSearch";q=10;w=3600, "default";q=100;w=86400`. Present on every response, including 401 and 429. schema: type: string example: '"default";q=100;w=86400' Idempotency-Key: description: >- The `Idempotency-Key` the request carried, echoed back unchanged. Absent when the request sent none. schema: type: string Deprecation: description: >- Present only on an endpoint version scheduled for removal: the date the deprecation took effect (RFC 9745). A `Sunset` header and a `Link` with `rel="successor-version"` accompany it. Policy: https://docs.usecroma.com/versioning schema: type: string example: '@1767225600' Sunset: description: >- Present only on an endpoint version scheduled for removal: the date after which it answers 410 (RFC 8594). Announced in the changelog at least 90 days ahead. schema: type: string format: date-time example: Wed, 01 Apr 2026 00:00:00 GMT X-RateLimit-Limit: description: Requests allowed in the current window. schema: type: integer X-RateLimit-Remaining: description: Requests left before you are throttled. schema: type: integer X-RateLimit-Reset: description: ISO 8601 timestamp when the window resets. schema: type: string format: date-time X-Cache: description: >- HIT or MISS. Cached hits spend no credits, but still count toward an hourly ceiling. schema: type: string enum: - HIT - MISS Retry-After: description: Seconds to wait before retrying. schema: type: integer schemas: RuntCitizenByPlateResponse: type: object required: - data properties: data: $ref: '#/components/schemas/RuntCitizenByPlateData' JobEnvelope: type: object required: - job - data - error description: >- Returned by async-capable endpoints (202) and by GET /jobs/{id}. `data` holds the endpoint's normal result once `status` is `completed`; `error` is populated once `status` is `failed`. properties: job: type: object required: - id - status - endpoint - created_at - finished_at - status_url properties: id: type: string status: type: string enum: - queued - running - completed - failed - canceled - expired endpoint: type: string description: The endpoint path that created this job. created_at: type: - string - 'null' format: date-time finished_at: type: - string - 'null' format: date-time status_url: type: string format: uri description: GET this URL to poll the job. data: description: The endpoint's normal result object once completed; null until then. oneOf: - type: object - type: 'null' error: description: Populated once the job has failed; null otherwise. oneOf: - type: object required: - type - code - message properties: type: type: string code: type: string message: type: string - type: 'null' ApiError: type: object required: - error properties: error: type: object required: - type - code - message properties: type: type: string description: >- Broad category: invalid_request_error, authentication_error, not_found_error, rate_limit_error, upstream_error, api_error. code: type: string description: Machine-readable specific code. message: type: string description: Human-readable explanation, safe to surface in UI. param: type: string description: Field that triggered the error. Present on validation errors. details: type: object description: Free-form structured detail. RuntCitizenByPlateData: type: object properties: found: type: boolean plate: type: string owner: anyOf: - type: object properties: document_type: anyOf: - type: string - type: 'null' document_number: anyOf: - type: string - type: 'null' name: anyOf: - type: string - type: 'null' required: - document_type - document_number - name - type: 'null' citizen: anyOf: - type: object properties: found: type: boolean document_type: type: string document_number: type: string first_surname: anyOf: - type: string - type: 'null' person: anyOf: - type: object properties: full_name: anyOf: - type: string - type: 'null' registration_id: anyOf: - type: string - type: 'null' registration_date: anyOf: - type: string - type: 'null' person_status: anyOf: - type: string - type: 'null' driver_status: anyOf: - type: string - type: 'null' has_licenses: anyOf: - type: boolean - type: 'null' required: - full_name - registration_id - registration_date - person_status - driver_status - has_licenses - type: 'null' licenses: type: array items: type: object properties: license_number: anyOf: - type: string - type: 'null' issuing_authority: anyOf: - type: string - type: 'null' issue_date: anyOf: - type: string - type: 'null' status: anyOf: - type: string - type: 'null' is_retained: anyOf: - type: boolean - type: 'null' restrictions: anyOf: - type: string - type: 'null' cancellation_date: anyOf: - type: string - type: 'null' suspension_start_date: anyOf: - type: string - type: 'null' suspension_end_date: anyOf: - type: string - type: 'null' resolution_number: anyOf: - type: string - type: 'null' cancelling_authority: anyOf: - type: string - type: 'null' categories: type: array items: type: object properties: category: anyOf: - type: string - type: 'null' issue_date: anyOf: - type: string - type: 'null' expiry_date: anyOf: - type: string - type: 'null' exam_expiry_date: anyOf: - type: string - type: 'null' previous_category: anyOf: - type: string - type: 'null' required: - category - issue_date - expiry_date - exam_expiry_date - previous_category required: - license_number - issuing_authority - issue_date - status - is_retained - restrictions - cancellation_date - suspension_start_date - suspension_end_date - resolution_number - cancelling_authority - categories fines: anyOf: - type: object properties: has_fines: anyOf: - type: boolean - type: 'null' clearance_number: anyOf: - type: string - type: 'null' required: - has_fines - clearance_number - type: 'null' requests: type: array items: type: object properties: request_number: anyOf: - type: string - type: 'null' request_date: anyOf: - type: string - type: 'null' identifier: anyOf: - type: string - type: 'null' status: anyOf: - type: string - type: 'null' procedure_status: anyOf: - type: string - type: 'null' procedure: anyOf: - type: string - type: 'null' procedures_completed: anyOf: - type: number - type: 'null' entity: anyOf: - type: string - type: 'null' registry: anyOf: - type: string - type: 'null' validation_type: anyOf: - type: string - type: 'null' validation_description: anyOf: - type: string - type: 'null' required: - request_number - request_date - identifier - status - procedure_status - procedure - procedures_completed - entity - registry - validation_type - validation_description aptitude_certificates: type: array items: type: object properties: certificate_number: anyOf: - type: string - type: 'null' certificate_type: anyOf: - type: string - type: 'null' status: anyOf: - type: string - type: 'null' center_name: anyOf: - type: string - type: 'null' issue_date: anyOf: - type: string - type: 'null' expiry_date: anyOf: - type: string - type: 'null' request_number: anyOf: - type: string - type: 'null' request_date: anyOf: - type: string - type: 'null' fua_number: anyOf: - type: string - type: 'null' procedure: anyOf: - type: string - type: 'null' category: anyOf: - type: string - type: 'null' restrictions: anyOf: - type: string - type: 'null' limitations: anyOf: - type: string - type: 'null' limitation_expiry_date: anyOf: - type: string - type: 'null' elements_to_overcome_limitations: anyOf: - type: string - type: 'null' traffic_authority: anyOf: - type: string - type: 'null' required: - certificate_number - certificate_type - status - center_name - issue_date - expiry_date - request_number - request_date - fua_number - procedure - category - restrictions - limitations - limitation_expiry_date - elements_to_overcome_limitations - traffic_authority medical_certificates: type: array items: type: object properties: certificate_number: anyOf: - type: string - type: 'null' center_name: anyOf: - type: string - type: 'null' issue_date: anyOf: - type: string - type: 'null' expiry_date: anyOf: - type: string - type: 'null' status: anyOf: - type: string - type: 'null' request_number: anyOf: - type: string - type: 'null' request_date: anyOf: - type: string - type: 'null' fua_number: anyOf: - type: string - type: 'null' procedure: anyOf: - type: string - type: 'null' category: anyOf: - type: string - type: 'null' restrictions: anyOf: - type: string - type: 'null' limitations: anyOf: - type: string - type: 'null' limitation_expiry_date: anyOf: - type: string - type: 'null' elements_to_overcome_limitations: anyOf: - type: string - type: 'null' traffic_authority: anyOf: - type: string - type: 'null' required: - certificate_number - center_name - issue_date - expiry_date - status - request_number - request_date - fua_number - procedure - category - restrictions - limitations - limitation_expiry_date - elements_to_overcome_limitations - traffic_authority cupl_registrations: type: array items: type: object properties: cupl_number: anyOf: - type: string - type: 'null' traffic_authority: anyOf: - type: string - type: 'null' issue_date: anyOf: - type: string - type: 'null' status: anyOf: - type: string - type: 'null' required: - cupl_number - traffic_authority - issue_date - status sicov_validations: type: array items: type: object properties: validation_date: anyOf: - type: string - type: 'null' status: anyOf: - type: string - type: 'null' description: anyOf: - type: string - type: 'null' plate: anyOf: - type: string - type: 'null' required: - validation_date - status - description - plate ansv_payments: type: array items: type: object properties: registration_date: anyOf: - type: string - type: 'null' center_name: anyOf: - type: string - type: 'null' category: anyOf: - type: string - type: 'null' certificate_type: anyOf: - type: string - type: 'null' status: anyOf: - type: string - type: 'null' required: - registration_date - center_name - category - certificate_type - status identity_validation: anyOf: - type: object properties: user_status: anyOf: - type: string - type: 'null' unlock_date: anyOf: - type: string - type: 'null' validations: type: array items: type: object properties: validation_date: anyOf: - type: string - type: 'null' status: anyOf: - type: string - type: 'null' description: anyOf: - type: string - type: 'null' plate: anyOf: - type: string - type: 'null' required: - validation_date - status - description - plate required: - user_status - unlock_date - validations - type: 'null' required: - found - document_type - document_number - first_surname - person - licenses - fines - requests - aptitude_certificates - medical_certificates - cupl_registrations - sicov_validations - ansv_payments - identity_validation - type: 'null' required: - found - plate - owner - citizen securitySchemes: bearerAuth: type: http scheme: bearer description: 'Use Authorization: Bearer YOUR_API_KEY' ````