A2A-VECTOR

{
  "protocolVersion": "0.3.0",
  "kind": "agent-card",
  "name": "A2A-VECTOR",
  "title": "A2A-VECTOR \u2014 the Agent Skill for the agentic grocery marketplace",
  "description": "A2A-VECTOR is the skill an AI agent installs to trade on GreenCore Solutions Corp.'s A2A hubs: A2A Grocery, A2A Cosmetics, A2A Peptides and A2A Retailmedia. Six steps: Verified (jurisdiction, actor, gate), Exchange (x402), Confirmed (fetch_gtin on gtinfetch.ai: products confirmed by their barcode, 84.1M GTINs, live on MCP; confidence confirmed \u00b7 seen \u00b7 unknown, with source pages), Traffic (live volume), Open-to-place (on the record, open to every buying agent and media placement agent; search, qualify, price, order) and Retail media. 353,532 makers, 8,619 retail banners, 1,973,447 points of sale, 20 markets. Runs on OAuth 2.1, Model Context Protocol (MCP), Agent-to-Agent (A2A) and x402. Artificial intelligence makes mistakes. GSC hubs are agentic information sources, not recommendations. No ads, ever. No rank for sale. Trade only.",
  "brief": "Install the skill. Your agent finds, verifies, prices, orders and pays on GSC's hubs. Trade only.",
  "notice": "Artificial intelligence makes mistakes. GSC hubs are agentic information sources, not recommendations. No ads, ever. No rank for sale. Trade only.",
  "url": "https://a2a-vector.ai",
  "version": "1.1.0",
  "documentationUrl": "https://github.com/greencore-solutions/gsc-vector",
  "skills": [
    {
      "id": "a2a-vector",
      "name": "A2A-VECTOR",
      "description": "Trade on GSC's agentic grocery marketplace in six steps; the C step confirms each product by its barcode with fetch_gtin on gtinfetch.ai.",
      "url": "https://a2a-vector.ai/SKILL.md",
      "tags": [
        "agentic-commerce",
        "retail-grocery",
        "procurement",
        "a2a",
        "mcp",
        "x402",
        "ai-orderability"
      ]
    }
  ],
  "provider": {
    "organization": "GreenCore Solutions Corp.",
    "url": "https://gsc-em.com"
  },
  "operator": {
    "name": "GreenCore Solutions Corp.",
    "url": "https://a2a-vector.ai",
    "contact": "https://gsc-navigator.ai",
    "github": "https://github.com/greencore-solutions"
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "securitySchemes": {
    "credential": {
      "type": "http",
      "scheme": "bearer",
      "description": "OAuth 2.1 client-credentials Bearer from https://a2a-registry.ai (register at /oauth/register); reads need no authentication; writes need scope <hub>.transact"
    },
    "x402": {
      "type": "http",
      "scheme": "x402",
      "description": "order intents settled in USDC on Base after the gate; a refused intent is not settled and not charged"
    }
  },
  "defaultInputModes": [
    "application/json",
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/markdown"
  ],
  "additionalInterfaces": [
    {
      "url": "https://mcp.a2a-grocery.ai/mcp",
      "transport": "streamable-http",
      "protocolVersion": "2025-06-18",
      "description": "A2A Grocery MCP door"
    },
    {
      "url": "https://mcp.a2a-cosmetics.ai/mcp",
      "transport": "streamable-http",
      "protocolVersion": "2025-06-18",
      "description": "A2A Cosmetics MCP door"
    },
    {
      "url": "https://mcp.a2a-peptides.ai/mcp",
      "transport": "streamable-http",
      "protocolVersion": "2025-06-18",
      "description": "A2A Peptides MCP door"
    },
    {
      "url": "https://mcp.a2a-retailmedia.ai/mcp",
      "transport": "streamable-http",
      "protocolVersion": "2025-06-18",
      "description": "A2A Retailmedia MCP door"
    }
  ],
  "supportedInterfaces": [
    {
      "url": "https://a2a-grocery.ai/a2a",
      "protocolBinding": "JSONRPC",
      "transport": "JSONRPC",
      "protocolVersion": "0.3.0",
      "preferred": true,
      "description": "A2A Grocery"
    },
    {
      "url": "https://a2a-cosmetics.ai/a2a",
      "protocolBinding": "JSONRPC",
      "transport": "JSONRPC",
      "protocolVersion": "0.3.0",
      "description": "A2A Cosmetics"
    },
    {
      "url": "https://a2a-peptides.ai/a2a",
      "protocolBinding": "JSONRPC",
      "transport": "JSONRPC",
      "protocolVersion": "0.3.0",
      "description": "A2A Peptides"
    },
    {
      "url": "https://a2a-retailmedia.ai/a2a",
      "protocolBinding": "JSONRPC",
      "transport": "JSONRPC",
      "protocolVersion": "0.3.0",
      "description": "A2A Retailmedia"
    }
  ]
}