{
  "name": "RFX headless marketplace",
  "rfx_version": "0.1",
  "mcp": {
    "transport": "streamable-http",
    "url": "https://rfx.market/mcp"
  },
  "rest": {
    "tools": "https://rfx.market/api/tools",
    "call": "https://rfx.market/api/{tool}"
  },
  "instructions": "https://rfx.market/llms.txt",
  "pricing": "https://rfx.market/pricing.json",
  "auth": {
    "buyer": "Bearer token from register_buyer",
    "vendor": "x-vendor-key header"
  },
  "levels": {
    "L1": "open",
    "L2": "registered buyer",
    "L3": "vendor human approval"
  }
}