> ## 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. # TST Labour-Debt Certificate (CNDT) > Issue Brazil's labour-debt certificate (Certidão Negativa de Débitos Trabalhistas) for a company by CNPJ, live from the Tribunal Superior do Trabalho: `clear`, `debts`, or `debts_secured` (every debt secured or suspended, with the legal effect of a clearance), the certificate number, issue time and validity, and each labour case with its court and whether the debt is secured. Optionally the official PDF. Async job; most calls finish inline. 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 /br/tst/labour-certificate/v1 openapi: 3.1.0 info: title: Croma Marketplace API version: 1.0.0 description: >- Government-data APIs for Colombia, Peru, Mexico, and 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: /br/tst/labour-certificate/v1: post: tags: - Brazil - Tribunal Superior do Trabalho (TST) summary: TST Labour-Debt Certificate (CNDT) description: >- Issue Brazil's labour-debt certificate (Certidão Negativa de Débitos Trabalhistas) for a company by CNPJ, live from the Tribunal Superior do Trabalho: `clear`, `debts`, or `debts_secured` (every debt secured or suspended, with the legal effect of a clearance), the certificate number, issue time and validity, and each labour case with its court and whether the debt is secured. Optionally the official PDF. Async job; most calls finish inline. 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: tst_labour_certificate parameters: - $ref: '#/components/parameters/IdempotencyKey' - $ref: '#/components/parameters/Prefer' requestBody: required: true content: application/json: schema: type: object required: - document_number properties: document_number: type: string pattern: >- ^(?:[A-Za-z0-9]{12}\d{2}|[A-Za-z0-9]{2}\.[A-Za-z0-9]{3}\.[A-Za-z0-9]{3}\/[A-Za-z0-9]{4}-\d{2})$ description: >- CNPJ de la empresa, con o sin puntuación, p. ej. `33.000.167/0001-01`. Solo empresas: un CPF no se acepta. include_pdf: type: boolean default: false description: >- Si es `true`, la respuesta incluye `pdf_url`, el enlace a la certidão oficial en PDF (opcional). callback_url: type: string format: uri description: POST the job result here when it finishes. additionalProperties: false example: document_number: 33.000.167/0001-01 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/TstLabourCertificateResponse' '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/brazil/tst 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 still count against your quota. schema: type: string enum: - HIT - MISS Retry-After: description: Seconds to wait before retrying. schema: type: integer schemas: TstLabourCertificateResponse: type: object required: - data properties: data: $ref: '#/components/schemas/TstLabourCertificateData' 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. TstLabourCertificateData: type: object properties: document_number: type: string description: The CNPJ queried, 14 characters, echoed back. status: type: string enum: - clear - debts - debts_secured description: >- `clear` (no labour debt), `debts` (unpaid labour debts), or `debts_secured` (labour debts, every one secured or suspended). has_clearance_effect: type: boolean description: >- true for `clear` and `debts_secured`: the certificate has the legal effect of a clearance, as public tenders require. status_label: type: string description: The certificate's title, as the court prints it. certificate_number: type: string description: The certificate's number and year, e.g. `75794208/2026`. issued_at: type: string description: When the certificate was issued, ISO 8601 in Brasília time. valid_until: type: string description: >- `yyyy-mm-dd` the certificate stops being valid: 180 days after it was issued. company_name: anyOf: - type: string - type: 'null' description: >- The company's name as the certificate prints it; null when the certificate is issued without one. total_cases: type: integer description: Labour cases the certificate lists; 0 when clear. cases: type: array items: type: object properties: case_number: type: string description: The case's CNJ number, `NNNNNNN-DD.AAAA.5.RR.OOOO`. court: type: string description: The regional labour court, e.g. `TRT 01ª Região`. region: type: integer description: The region's number, 1 to 24. office: anyOf: - type: string - type: 'null' description: >- The labour court (vara) the case sits in, when the certificate names it. debt_condition: type: string enum: - unsecured - secured - suspended description: >- `unsecured`; `secured` by a deposit, a freeze or an attachment of enough assets; or `suspended` (its enforceability is suspended). required: - case_number - court - region - office - debt_condition description: The cases behind the debts, as the certificate lists them. pdf_url: anyOf: - type: string - type: 'null' description: A link to the official certificate PDF, when `include_pdf` was true. checked_at: type: string description: >- When this certificate was issued for this request, as an ISO timestamp. required: - document_number - status - has_clearance_effect - status_label - certificate_number - issued_at - valid_until - company_name - total_cases - cases - pdf_url - checked_at securitySchemes: bearerAuth: type: http scheme: bearer description: 'Use Authorization: Bearer YOUR_API_KEY' ````