> ## 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. # ANCP-CCE Conceptos Search > Search conceptos (public-procurement legal opinions) from the Relatoría de la ANCP-CCE (Colombia Compra Eficiente) by free text, tema (descriptor), and modification date. Paginated, newest-modified first. Drill into one with `ancp-cce-concepto` for the full text. ## OpenAPI ````yaml /api-reference/openapi.json post /co/ancp-cce/conceptos-search/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. servers: - url: https://api.croma.run security: [] paths: /co/ancp-cce/conceptos-search/v1: post: tags: - Colombia - Relatoría de la ANCP-CCE summary: ANCP-CCE Conceptos Search description: >- Search conceptos (public-procurement legal opinions) from the Relatoría de la ANCP-CCE (Colombia Compra Eficiente) by free text, tema (descriptor), and modification date. Paginated, newest-modified first. Drill into one with `ancp-cce-concepto` for the full text. operationId: ancp_cce_conceptos_search requestBody: required: true content: application/json: schema: type: object required: [] properties: query: type: string maxLength: 200 default: '' description: >- Optional free-text search over the concepto text. Empty returns the most recently modified conceptos. subject: type: string maxLength: 120 default: '' description: >- Optional tema (descriptor) filter, e.g. `Capacidad jurídica`. Empty applies no tema filter. modified_after: type: string format: date default: '' description: Optional date filter in yyyy-mm-dd format. page: type: integer minimum: 1 maximum: 1000 default: 1 description: 1-based page number for paginated results. per_page: type: integer minimum: 1 maximum: 100 default: 20 description: Results per page (maximum 100). additionalProperties: false example: query: capacidad jurídica 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/AncpConceptosSearchResponse' '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' '502': description: Upstream source returned an 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://docs.usecroma.com/guides/colombia/ancp-cce components: schemas: AncpConceptosSearchResponse: type: object required: - data properties: data: type: object required: - query - subject - total - total_pages - page - per_page - count - results properties: query: type: string subject: type: - string - 'null' total: type: integer total_pages: type: integer page: type: integer per_page: type: integer count: type: integer results: type: array items: $ref: '#/components/schemas/AncpConceptoResumen' 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. AncpConceptoResumen: type: object required: - number - id - slug - publication_date - modified_date - url - subjects - subtopics description: Summary of one concepto from the Relatoría de la ANCP-CCE. properties: number: type: string description: Official concepto number, e.g. `C-1094 de 2026`. id: type: integer slug: type: string publication_date: type: - string - 'null' format: date modified_date: type: - string - 'null' format: date url: type: - string - 'null' format: uri subjects: type: array items: type: string description: Temas (descriptores) the concepto is indexed under. subtopics: type: array items: type: string description: Subtemas (restrictores) the concepto is indexed under. securitySchemes: bearerAuth: type: http scheme: bearer description: 'Use Authorization: Bearer YOUR_API_KEY' ````