LVL LTD Agent Skill Market

{
  "name": "LVL LTD Agent Skill Market",
  "description": "Live x402 skill market for autonomous agents and humans. Discover priced skills, evaluate free samples, receive HTTP 402 challenges, settle USDC on Base, unlock sealed ERC-7857 capability packs \u2014 zero human UI required.",
  "url": "https://lvlltd.com/api/a2a",
  "version": "1.2.4",
  "protocolVersion": "1.0",
  "preferredTransport": "JSONRPC",
  "provider": {
    "organization": "LVL LTD CO",
    "url": "https://lvlltd.com"
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "text/plain",
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "x402-skill-shop",
      "name": "Buy sealed skill packs",
      "description": "Discover, evaluate free samples, pay USDC on Base, unlock sealed packs",
      "tags": [
        "x402",
        "commerce",
        "shop"
      ],
      "inputModes": [
        "application/json",
        "text"
      ],
      "outputModes": [
        "application/json"
      ],
      "examples": [
        "GET /api/catalog?q=seller",
        "GET /api/pay?skill=seller-agent",
        "POST /api/pay X-PAYMENT {\"txHash\":\"0x\u2026\",\"skill\":\"seller-agent\"}"
      ]
    },
    {
      "id": "free-skill-eval",
      "name": "Free skill evaluation",
      "description": "Read outline/sample before purchase",
      "tags": [
        "discovery",
        "sample"
      ],
      "examples": [
        "GET /skills/agent-orchestration/outline.json"
      ]
    }
  ],
  "supportedInterfaces": [
    {
      "url": "https://lvlltd.com/api/a2a",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "1.0"
    }
  ],
  "additionalInterfaces": [
    {
      "url": "https://lvlltd.com/api/a2a",
      "transport": "JSONRPC"
    },
    {
      "url": "https://lvlltd.com/api/shop",
      "transport": "HTTP+JSON"
    },
    {
      "url": "https://lvlltd.com/api/pay",
      "transport": "HTTP+JSON"
    },
    {
      "url": "https://lvlltd.com/catalog.json",
      "transport": "HTTP+JSON"
    },
    {
      "url": "https://lvlltd.com/api/proof",
      "transport": "HTTP+JSON"
    }
  ],
  "documentationUrl": "https://lvlltd.com/llms.txt",
  "iconUrl": "https://lvlltd.com/favicon.svg",
  "supportsAuthenticatedExtendedCard": false,
  "x402": {
    "endpoint": "https://lvlltd.com/api/pay",
    "network": "base",
    "asset": "USDC",
    "shop": "https://lvlltd.com/api/shop",
    "start_here": "agent-x402-first-buy"
  },
  "updated_at": "2026-07-20T19:56:20.658Z",
  "agent_workflow": [
    "GET /api/shop or /agent.json \u2014 machine entry / discovery",
    "GET /api/catalog?q= \u2014 slim searchable inventory",
    "GET /skills/<id>/outline.json \u2014 FREE evaluation sample",
    "GET /api/pay?skill=<id> \u2014 HTTP 402 (amount, payTo, network, asset, assetContract)",
    "Transfer maxAmountRequired atomic USDC on Base to payTo",
    "POST /api/pay with X-PAYMENT: {\"txHash\":\"0x\u2026\",\"skill\":\"<id>\"} \u2014 sealed_pack.files",
    "Re-redeem: same txHash POST or license.token POST",
    "Human MetaMask path remains: /hub/marketplace?buy=<id>&pay=1 (optional)"
  ],
  "network": {
    "chain": "base",
    "chain_id": 8453,
    "assets": [
      "USDC",
      "USDbC"
    ],
    "pay_to": "0xa00876513bAA433ce2B58A5341Fd06d2b6f9A6ED",
    "asset_contract_usdc": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
  },
  "endpoints": {
    "health": "https://lvlltd.com/api/health",
    "ready": "https://lvlltd.com/api/ready",
    "shop": "https://lvlltd.com/api/shop",
    "metrics": "https://lvlltd.com/api/metrics",
    "auditor": "https://lvlltd.com/api/auditor",
    "dashboard": "https://lvlltd.com/dashboard/",
    "revenue": "https://lvlltd.com/api/revenue",
    "profit": "https://lvlltd.com/profit/",
    "orchestrate": "https://lvlltd.com/api/orchestrate",
    "swarm_ui": "https://lvlltd.com/swarm/",
    "grant": "https://lvlltd.com/grant/",
    "catalog": "https://lvlltd.com/catalog.json",
    "catalog_search": "https://lvlltd.com/api/catalog",
    "cart": "https://lvlltd.com/api/cart",
    "pay": "https://lvlltd.com/api/pay",
    "packs": "https://lvlltd.com/api/packs",
    "samples_index": "https://lvlltd.com/skills/index.json",
    "skill_sample": "https://lvlltd.com/skills/{id}/sample.md",
    "skill_outline": "https://lvlltd.com/skills/{id}/outline.json",
    "sdk": "https://lvlltd.com/sdk/agent-shop.mjs",
    "openapi": "https://lvlltd.com/openapi.json",
    "llms": "https://lvlltd.com/llms.txt",
    "well_known_llms": "https://lvlltd.com/.well-known/llms.txt",
    "agent_card": "https://lvlltd.com/.well-known/agent-card.json",
    "protocols": "https://lvlltd.com/protocols.json",
    "nft_catalog": "https://lvlltd.com/nft-catalog.json",
    "agents_directory": "https://lvlltd.com/agents/",
    "agents_api": "https://lvlltd.com/api/agents",
    "agents_index": "https://lvlltd.com/agents/index.json",
    "marketplace": "https://lvlltd.com/hub/marketplace",
    "premium_shelf": "https://lvlltd.com/hub/marketplace?shelf=premium",
    "flagship": "https://lvlltd.com/goods/lvl-agent-revenue-os-pack/",
    "agent": "https://lvlltd.com/agent.json",
    "swarm": "https://swarm.lvlltd.com",
    "music": "https://music.lvlltd.com"
  }
}