> ## 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. # CNBV Regulations > The CNBV's current regulatory catalog (~113 normas: leyes, disposiciones de carácter general including the Circular Única de Bancos, circulares, acuerdos, reglas), each with type, DOF publication date, applicable sectors, and the official PDF. Optional `query` filters by name. Paged, 50 per page. Norms with a `regulation_id` have modification history via `cnbv-regulation-history`. ## OpenAPI ````yaml /api-reference/openapi.json post /mx/cnbv/regulations/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: /mx/cnbv/regulations/v1: post: tags: - Mexico - CNBV summary: CNBV Regulations description: >- The CNBV's current regulatory catalog (~113 normas: leyes, disposiciones de carácter general including the Circular Única de Bancos, circulares, acuerdos, reglas), each with type, DOF publication date, applicable sectors, and the official PDF. Optional `query` filters by name. Paged, 50 per page. Norms with a `regulation_id` have modification history via `cnbv-regulation-history`. operationId: cnbv_regulations requestBody: required: true content: application/json: schema: type: object required: [] properties: query: type: string maxLength: 200 default: '' description: >- Optional name filter (case- and accent-insensitive substring). page: type: integer minimum: 1 maximum: 1000 default: 1 description: 1-based page number for paginated results. additionalProperties: false example: query: instituciones de crédito 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/CnbvRegulationsResponse' '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/mexico/cnbv components: schemas: CnbvRegulationsResponse: type: object required: - data properties: data: type: object required: - regulations - pagination properties: regulations: type: array items: $ref: '#/components/schemas/CnbvRegulationSummary' pagination: type: object required: - total - page_size - total_pages - page properties: total: type: integer page_size: type: integer total_pages: type: integer page: type: integer 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. CnbvRegulationSummary: type: object required: - regulation_id - name - type - dof_date - sectors - pdf_url properties: regulation_id: type: - string - 'null' description: Id for `cnbv-regulation-history`; null when the norm has no history. name: type: string type: type: - string - 'null' dof_date: type: - string - 'null' format: date sectors: type: array items: type: string pdf_url: type: - string - 'null' format: uri securitySchemes: bearerAuth: type: http scheme: bearer description: 'Use Authorization: Bearer YOUR_API_KEY' ````