> ## 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. # SUNAT Taxpayer by RUC > Look up a Peruvian taxpayer's full record by RUC (11 digits). 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 /pe/sunat/ruc/v1 openapi: 3.1.0 info: title: Croma Marketplace API version: 1.0.0 description: >- Government-data APIs for Colombia, Peru, and global web search. Croma normalizes public-sector data into structured JSON for product teams and AI agents. servers: - url: https://api.croma.run security: [] paths: /pe/sunat/ruc/v1: post: tags: - Peru - SUNAT summary: SUNAT Taxpayer by RUC description: >- Look up a Peruvian taxpayer's full record by RUC (11 digits). 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: sunat_ruc parameters: - 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 requestBody: required: true content: application/json: schema: type: object required: - ruc properties: ruc: type: string pattern: ^\d{11}$ description: 11-digit RUC. callback_url: type: string format: uri description: POST the job result here when it finishes. additionalProperties: false example: ruc: '20100070970' responses: '200': description: Successful response headers: X-Request-Id: description: >- Unique id for the request (req_…). Include it in support reports. schema: type: string 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 still count against your quota. schema: type: string enum: - HIT - MISS content: application/json: schema: $ref: '#/components/schemas/RucResponse' '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: description: >- Unique id for the request (req_…). Include it in support reports. schema: type: string Retry-After: description: Seconds to wait before retrying. schema: type: integer 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: description: >- Unique id for the request (req_…). Include it in support reports. schema: type: string content: application/json: schema: $ref: '#/components/schemas/ApiError' '401': description: Missing or invalid API key headers: X-Request-Id: description: >- Unique id for the request (req_…). Include it in support reports. schema: type: string content: application/json: schema: $ref: '#/components/schemas/ApiError' '429': description: Rate limit exceeded headers: X-Request-Id: description: >- Unique id for the request (req_…). Include it in support reports. schema: type: string 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 Retry-After: description: Seconds to wait before retrying. schema: type: integer content: application/json: schema: $ref: '#/components/schemas/ApiError' '500': description: Internal error headers: X-Request-Id: description: >- Unique id for the request (req_…). Include it in support reports. schema: type: string content: application/json: schema: $ref: '#/components/schemas/ApiError' security: - bearerAuth: [] externalDocs: description: Interactive documentation and examples url: https://usecroma.com/peru/sunat components: schemas: RucResponse: type: object required: - data properties: data: type: object required: - found - ruc - taxpayer_name - taxpayer_type - taxpayer_status - taxpayer_condition - fiscal_address properties: found: type: boolean description: >- Whether a taxpayer matched. When false, the remaining fields are null/empty. ruc: type: - string - 'null' taxpayer_name: type: - string - 'null' taxpayer_type: type: - string - 'null' document_type: type: - string - 'null' document_number: type: - string - 'null' trade_name: type: - string - 'null' registration_date: type: - string - 'null' activities_start_date: type: - string - 'null' taxpayer_status: type: - string - 'null' taxpayer_condition: type: - string - 'null' fiscal_address: type: - string - 'null' emission_system: type: - string - 'null' foreign_trade_activity: type: - string - 'null' accounting_system: type: - string - 'null' economic_activities: type: array items: type: string payment_vouchers: type: array items: type: string electronic_emission_systems: type: array items: type: string electronic_emitter_since: type: - string - 'null' electronic_vouchers: type: - string - 'null' ple_affiliated_since: type: - string - 'null' registries: type: array items: type: string 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. securitySchemes: bearerAuth: type: http scheme: bearer description: 'Use Authorization: Bearer YOUR_API_KEY' ````