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OpenAPI Specification

openapi: 3.2.0
info:
  title: Dados B3 Fatos Relevantes.xml API
  description: 'Dados fundamentalistas de companhias abertas brasileiras com metodologia 100% pública e invariantes de dado publicados. Fontes: CVM (dados abertos, ODbL) e B3 (COTAHIST fim-de-dia). Todo número carrega a conta CVM de origem; valor duvidoso carrega flag, nunca estimativa escondida.'
  version: 0.1.0
tags:
- name: Fatos Relevantes.xml
paths:
  /fatos-relevantes.xml:
    get:
      summary: Fatos Relevantes Feed
      description: O mesmo radar em Atom (23/10/2026), para leitor de feed e agregador. Mesmo texto descritivo, mesmo limite.
      operationId: fatos_relevantes_feed_fatos_relevantes_xml_get
      parameters:
      - name: lang
        in: query
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Lang
      - name: accept-language
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Accept-Language
      responses:
        '200':
          description: Successful Response
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      tags:
      - Fatos Relevantes.xml
components:
  schemas:
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
  securitySchemes:
    ChaveApiNaUrl:
      type: apiKey
      in: query
      name: chave
      description: Alternativa ao cabeçalho para clientes que só abrem URL (navegação de IA). Fica no histórico e nos logs de quem a usa.
    ChaveApi:
      type: apiKey
      in: header
      name: X-API-Key
      description: 'Chave grátis (200 consultas/dia) ou Pro em /assinar. Abertos sem chave (limite por IP): fatos, indicadores, múltiplos e dividendos de qualquer ticker, ficha e ranking de FII. WEGE3, MXRF11, /hoje, /saude e a metodologia são abertos. Exigem chave: as_of, versões, preços, screener, /dump.'