> ## 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.

# RUES Entity by NIT

> Resolve a Colombian business by NIT and return its full RUES record: registry detail, financial statements, renewal history, related parties and registry notices.



## OpenAPI

````yaml /api-reference/openapi.json post /co/rues/entity-by-nit/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, El
    Salvador, Bolivia, and Japan, 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: support@usecroma.com
servers:
  - url: https://api.croma.run
security: []
paths:
  /co/rues/entity-by-nit/v1:
    post:
      tags:
        - Colombia
        - RUES
      summary: RUES Entity by NIT
      description: >-
        Resolve a Colombian business by NIT and return its full RUES record:
        registry detail, financial statements, renewal history, related parties
        and registry notices.
      operationId: rues_entity_by_nit
      parameters:
        - $ref: '#/components/parameters/IdempotencyKey'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - document_number
              properties:
                document_number:
                  type: string
                  minLength: 4
                  maxLength: 15
                  pattern: ^\d{4,15}$
                  description: Colombian NIT (numeric, no verification digit). 4-15 digits.
              additionalProperties: false
            example:
              document_number: '900654922'
      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/RuesEntityResponse'
        '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/rues
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
  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=100;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:
    RuesEntityResponse:
      type: object
      required:
        - data
      properties:
        data:
          $ref: '#/components/schemas/RuesEntityData'
    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.
    RuesEntityData:
      type: object
      properties:
        found:
          type: boolean
        document_number:
          type: string
        entity:
          anyOf:
            - type: object
              properties:
                registry_id:
                  anyOf:
                    - type: string
                    - type: 'null'
                nit:
                  anyOf:
                    - type: string
                    - type: 'null'
                verification_digit:
                  anyOf:
                    - type: string
                    - type: 'null'
                identification_class:
                  anyOf:
                    - type: string
                    - type: 'null'
                secondary_identification:
                  anyOf:
                    - type: string
                    - type: 'null'
                name:
                  anyOf:
                    - type: string
                    - type: 'null'
                acronym:
                  anyOf:
                    - type: string
                    - type: 'null'
                chamber_code:
                  anyOf:
                    - type: string
                    - type: 'null'
                chamber_name:
                  anyOf:
                    - type: string
                    - type: 'null'
                registration_number:
                  anyOf:
                    - type: string
                    - type: 'null'
                registration_status:
                  anyOf:
                    - type: string
                    - type: 'null'
                registration_category:
                  anyOf:
                    - type: string
                    - type: 'null'
                legal_organization:
                  anyOf:
                    - type: string
                    - type: 'null'
                society_type:
                  anyOf:
                    - type: string
                    - type: 'null'
                society_type_code:
                  anyOf:
                    - type: string
                    - type: 'null'
                registration_date:
                  anyOf:
                    - type: string
                    - type: 'null'
                last_renewal_date:
                  anyOf:
                    - type: string
                    - type: 'null'
                last_renewed_year:
                  anyOf:
                    - type: string
                    - type: 'null'
                expiration_date:
                  anyOf:
                    - type: string
                    - type: 'null'
                cancellation_date:
                  anyOf:
                    - type: string
                    - type: 'null'
                cancellation_reason:
                  anyOf:
                    - type: string
                    - type: 'null'
                updated_date:
                  anyOf:
                    - type: string
                    - type: 'null'
                primary_activity:
                  type: object
                  properties:
                    code:
                      anyOf:
                        - type: string
                        - type: 'null'
                    description:
                      anyOf:
                        - type: string
                        - type: 'null'
                  required:
                    - code
                    - description
                secondary_activity:
                  type: object
                  properties:
                    code:
                      anyOf:
                        - type: string
                        - type: 'null'
                    description:
                      anyOf:
                        - type: string
                        - type: 'null'
                  required:
                    - code
                    - description
                ciiu_3:
                  type: object
                  properties:
                    code:
                      anyOf:
                        - type: string
                        - type: 'null'
                    description:
                      anyOf:
                        - type: string
                        - type: 'null'
                  required:
                    - code
                    - description
                ciiu_4:
                  type: object
                  properties:
                    code:
                      anyOf:
                        - type: string
                        - type: 'null'
                    description:
                      anyOf:
                        - type: string
                        - type: 'null'
                  required:
                    - code
                    - description
                commercial_address:
                  anyOf:
                    - type: string
                    - type: 'null'
                commercial_municipality:
                  anyOf:
                    - type: string
                    - type: 'null'
                commercial_phones:
                  type: array
                  items:
                    type: string
                commercial_email:
                  anyOf:
                    - type: string
                    - type: 'null'
                fiscal_address:
                  anyOf:
                    - type: string
                    - type: 'null'
                fiscal_municipality:
                  anyOf:
                    - type: string
                    - type: 'null'
                fiscal_phones:
                  type: array
                  items:
                    type: string
                fiscal_email:
                  anyOf:
                    - type: string
                    - type: 'null'
                is_bic:
                  anyOf:
                    - type: boolean
                    - type: 'null'
                is_social_enterprise:
                  anyOf:
                    - type: boolean
                    - type: 'null'
                is_law_1780:
                  anyOf:
                    - type: boolean
                    - type: 'null'
                is_transport:
                  anyOf:
                    - type: boolean
                    - type: 'null'
                domain_forfeiture:
                  anyOf:
                    - type: boolean
                    - type: 'null'
                sipref_inactivation_control:
                  anyOf:
                    - type: boolean
                    - type: 'null'
                certificates_sale_url:
                  anyOf:
                    - type: string
                    - type: 'null'
              required:
                - registry_id
                - nit
                - verification_digit
                - identification_class
                - secondary_identification
                - name
                - acronym
                - chamber_code
                - chamber_name
                - registration_number
                - registration_status
                - registration_category
                - legal_organization
                - society_type
                - society_type_code
                - registration_date
                - last_renewal_date
                - last_renewed_year
                - expiration_date
                - cancellation_date
                - cancellation_reason
                - updated_date
                - primary_activity
                - secondary_activity
                - ciiu_3
                - ciiu_4
                - commercial_address
                - commercial_municipality
                - commercial_phones
                - commercial_email
                - fiscal_address
                - fiscal_municipality
                - fiscal_phones
                - fiscal_email
                - is_bic
                - is_social_enterprise
                - is_law_1780
                - is_transport
                - domain_forfeiture
                - sipref_inactivation_control
                - certificates_sale_url
            - type: 'null'
        financials:
          type: array
          items:
            type: object
            properties:
              year:
                anyOf:
                  - type: string
                  - type: 'null'
              current_assets:
                anyOf:
                  - type: number
                  - type: 'null'
              non_current_assets:
                anyOf:
                  - type: number
                  - type: 'null'
              total_assets:
                anyOf:
                  - type: number
                  - type: 'null'
              current_liabilities:
                anyOf:
                  - type: number
                  - type: 'null'
              non_current_liabilities:
                anyOf:
                  - type: number
                  - type: 'null'
              total_liabilities:
                anyOf:
                  - type: number
                  - type: 'null'
              equity:
                anyOf:
                  - type: number
                  - type: 'null'
              social_balance:
                anyOf:
                  - type: number
                  - type: 'null'
              ordinary_revenue:
                anyOf:
                  - type: number
                  - type: 'null'
              other_income:
                anyOf:
                  - type: number
                  - type: 'null'
              cost_of_sales:
                anyOf:
                  - type: number
                  - type: 'null'
              operating_expenses:
                anyOf:
                  - type: number
                  - type: 'null'
              other_expenses:
                anyOf:
                  - type: number
                  - type: 'null'
              tax_expenses:
                anyOf:
                  - type: number
                  - type: 'null'
              operating_profit:
                anyOf:
                  - type: number
                  - type: 'null'
              period_result:
                anyOf:
                  - type: number
                  - type: 'null'
            required:
              - year
              - current_assets
              - non_current_assets
              - total_assets
              - current_liabilities
              - non_current_liabilities
              - total_liabilities
              - equity
              - social_balance
              - ordinary_revenue
              - other_income
              - cost_of_sales
              - operating_expenses
              - other_expenses
              - tax_expenses
              - operating_profit
              - period_result
        renewals:
          type: array
          items:
            type: object
            properties:
              year:
                anyOf:
                  - type: string
                  - type: 'null'
              renewal_date:
                anyOf:
                  - type: string
                  - type: 'null'
            required:
              - year
              - renewal_date
        related_parties:
          type: array
          items:
            type: object
            properties:
              document_number:
                anyOf:
                  - type: string
                  - type: 'null'
              name:
                anyOf:
                  - type: string
                  - type: 'null'
              role:
                anyOf:
                  - type: string
                  - type: 'null'
            required:
              - document_number
              - name
              - role
        notices:
          type: array
          items:
            type: object
            properties:
              name:
                anyOf:
                  - type: string
                  - type: 'null'
              act:
                anyOf:
                  - type: string
                  - type: 'null'
              note:
                anyOf:
                  - type: string
                  - type: 'null'
              published_date:
                anyOf:
                  - type: string
                  - type: 'null'
              registered_date:
                anyOf:
                  - type: string
                  - type: 'null'
              chamber_name:
                anyOf:
                  - type: string
                  - type: 'null'
            required:
              - name
              - act
              - note
              - published_date
              - registered_date
              - chamber_name
      required:
        - found
        - document_number
        - entity
        - financials
        - renewals
        - related_parties
        - notices
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'Use Authorization: Bearer YOUR_API_KEY'

````

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