openapi: 3.1.0
info:
  title: Vantage AI (ai4cio.ai) Buyer-Agent Product Feed
  description: >
    Read-only discovery surface for AI buyer-agents purchasing virtual CIO (vCIO)
    services from Vantage AI / ElasticD3M, LLC. The canonical catalog is the static
    product feed at /products.json. Checkout is via the Stripe Payment Link on each
    offer. For agent-to-agent procurement, email agents@ai4cio.ai with subject
    prefix [AGENT-PURCHASE].
  version: "1.0"
  contact:
    email: agents@ai4cio.ai
servers:
  - url: https://ai4cio.ai
paths:
  /products.json:
    get:
      operationId: getProducts
      summary: Full offer catalog with Stripe checkout URLs
      description: >
        Returns the issuer, audience, purchasing protocol, and the list of offers.
        Each offer exposes id, name, description, type, price_usd, and checkout_url.
        While the top-level status is 'pre-launch', checkout_url values are
        placeholders and no purchase should be attempted.
      responses:
        "200":
          description: The product catalog
          content:
            application/json:
              schema:
                type: object
  /llms.txt:
    get:
      operationId: getBrief
      summary: Plain-language brief for language models
      responses:
        "200":
          description: Plain-text brief
          content:
            text/plain: {}
