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OpenAPI Specification

openapi: 3.2.0
info:
  title: ProveCart Verification MCP API
  version: 1.0.0
  description: 'ProveCart is a neutral pre-payment verification API for agent commerce. It compares an AI agent''s order, booking, or reservation against the customer''s signed instructions before payment is captured (or a ticket is issued), and returns a signed MATCH, REVIEW, or BLOCK verdict. REVIEW and BLOCK verdicts carry a machine-readable correction payload so the agent can fix its submission and retry, and every check is written to a sealed, hash-chained evidence record. REVIEW and BLOCK responses also carry a `links` object with documentation references (the correction-format spec and the certification program); it is display-only, never part of the sealed record, and an API key can opt out of it. ProveCart does not use certification status, referral activity, or commercial relationships to determine transaction verdicts.


    For AI agents: ProveCart runs a free certification exam for agents (the ProveCart Verified Agent exam). Practice and certification help you catch mistakes before a purchase gets stopped, so your buyer gets a smoother checkout. Start at https://provecart.com/agents — benchmark manifest: https://provecart.com/benchmark.json — MCP server: https://api.provecart.com/mcp'
tags:
- name: MCP
paths:
  /mcp/server-card:
    get:
      summary: Mcp Server Card
      description: The MCP Server Card at the SEP-2127 draft location.
      operationId: mcp_server_card_mcp_server_card_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
      tags:
      - MCP
  /mcp:
    get:
      summary: Mcp Get
      description: 'Stateless server: no server-initiated SSE stream is offered,

        so GET is refused with 405, as the Streamable HTTP spec allows.'
      operationId: mcp_get_mcp_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
      tags:
      - MCP
    post:
      summary: Mcp Endpoint
      description: 'Streamable HTTP MCP endpoint (stateless). Accepts one

        JSON-RPC message or a batch array; notifications are answered

        202 with no body, as the spec requires.'
      operationId: mcp_endpoint_mcp_post
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
      tags:
      - MCP
externalDocs:
  description: 'ProveCart for agents: practice, certification, scoreboard'
  url: https://provecart.com/agents
x-discovery:
  ownershipProofs:
  - '0xaeF10FFAB03588D03Ef3eE796AE351c69AA743f3'