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OpenAPI Specification

openapi: 3.2.0
info:
  title: Cerveja Barata public MCP API
  version: 1.0.0
  description: 'Real beer prices from bars, supermarkets and depósitos in Brazil, ranked by price per litre, bars and shops apart. Open data under the ODbL 1.0: credit "Cerveja Barata (cervejabarata.com.br)" and keep derived databases open. Static files cover everything and are free to fetch; the live endpoints answer at most 50 prices, are cached for 10–15 minutes and answer 503 with the static files'' address when the database runs low. No key needed.'
  contact:
    name: Cerveja Barata
    email: contato@cervejabarata.com.br
    url: https://cervejabarata.com.br
  license:
    name: ODbL-1.0
    url: https://opendatacommons.org/licenses/odbl/1-0/
servers:
- url: https://cervejabarata.com.br
tags:
- name: MCP
paths:
  /mcp:
    post:
      tags:
      - MCP
      summary: MCP server (streamable HTTP, stateless)
      description: 'One JSON-RPC message per POST, answered with JSON (no sessions, no streams). Tools: search_deals, cheapest_now, get_venue, list_neighbourhoods, price_index, catalog, price_per_litre.'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                jsonrpc:
                  type: string
                  enum:
                  - '2.0'
                id:
                  anyOf:
                  - type: string
                  - type: number
                method:
                  type: string
                  example: tools/list
                params:
                  type: object
                  additionalProperties: {}
              required:
              - jsonrpc
              - method
      responses:
        '200':
          description: The JSON-RPC response
          content:
            application/json:
              schema:
                type: object
                additionalProperties: {}
        '202':
          description: Notification accepted
      operationId: postMcp
      x-operation-id-source: derived