MERCURY Web Fetch

{
  "protocolVersion": "0.3.0",
  "name": "MERCURY Web Fetch",
  "description": "The keyless, signed-provenance web-fetch for autonomous agents. Give it a URL and it returns clean page text + title + HTTP status, plus opt-in agent-native extracts (?format=markdown, ?links=1 link-graph, ?extract=1 description+wordCount). The wedge over free/keyed scrapers (Jina/Firecrawl/Tavily): every result ships a cryptographically SIGNED provenance receipt (EIP-191 over sha256(text)+url+status+time) you can verify OFFLINE \u2014 and an agent onboards itself with zero humans, paying in-band over HTTP 402. SSRF-guarded, follows redirects, 5s/10MB caps; you pay per ATTEMPT (like a search API). $0.003 real USDC, per-call, on Base mainnet. No token, no mint \u2014 pure data. Machine-readable teardown vs each alternative: GET /vs.",
  "url": "https://network.mercury-hq.com/a2a",
  "preferredTransport": "JSONRPC",
  "additionalInterfaces": [
    {
      "url": "https://network.mercury-hq.com/a2a",
      "transport": "JSONRPC"
    }
  ],
  "version": "1.0.0",
  "registrations": [
    {
      "agentId": "54791",
      "agentRegistry": "eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
    }
  ],
  "trustModels": [
    "reputation"
  ],
  "provider": {
    "organization": "MERCURY",
    "url": "https://network.mercury-hq.com"
  },
  "documentationUrl": "https://network.mercury-hq.com/catalog",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "securitySchemes": {
    "x402": {
      "type": "x402",
      "scheme": "exact",
      "network": "eip155:8453",
      "asset": "USDC",
      "description": "Pay per call over HTTP 402 (x402 v2). $0.003 real USDC on Base mainnet (CAIP-2 eip155:8453). Settlement via https://api.cdp.coinbase.com/platform/v2/x402."
    }
  },
  "security": [
    {
      "x402": []
    }
  ],
  "skills": [
    {
      "id": "web-fetch",
      "name": "Web Fetch",
      "description": "Fetch any public URL and return clean readable page text, the page title, and the HTTP status. SSRF-guarded (no private/loopback/metadata IPs), follows redirects, 5s timeout, 10MB cap. Always returns a structured result \u2014 success or an honest failure \u2014 and you pay per attempt. A drop-in agent replacement for SerpAPI-style page fetching at ~$0.003/call.",
      "tags": [
        "web-fetch",
        "agent-web-fetch",
        "web",
        "scrape",
        "x402",
        "data",
        "mainnet",
        "base"
      ],
      "examples": [
        "Fetch https://example.com and give me the page text",
        "Get the title and status of https://news.ycombinator.com"
      ],
      "inputModes": [
        "text/plain"
      ],
      "outputModes": [
        "application/json"
      ]
    }
  ],
  "metadata": {
    "spec": "mercury-storefront/1",
    "x402": {
      "resource": "https://network.mercury-hq.com/buy/fetch",
      "price": "$0.003",
      "network": "base",
      "caip2": "eip155:8453",
      "asset": "USDC",
      "payTo": "0xe10B9d44e72A29B9c19da02981FFCd875308e3C1",
      "facilitator": "https://api.cdp.coinbase.com/platform/v2/x402",
      "testnet": false
    },
    "discovery": [
      "https://network.mercury-hq.com/.well-known/x402",
      "https://network.mercury-hq.com/catalog",
      "https://network.mercury-hq.com/openapi.json"
    ],
    "erc8004": {
      "agentId": "54791",
      "chain": "eip155:8453",
      "identityRegistry": "0x8004A169FB4a3325136EB29fA0ceB6D2e539a432",
      "reputationRegistry": "0x8004BAa17C55a88189AE136b182e5fdA19dE9b63",
      "registrationFile": "https://network.mercury-hq.com/.well-known/erc8004.json",
      "reviews": "https://network.mercury-hq.com/reviews",
      "owner": "0x6FAf93774F43d2e796eBFE43C05461221DB32C40"
    }
  }
}