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 — 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 — pure data. Machine-readable teardown vs each alternative: GET /vs.",
  "author": "MERCURY",
  "wellKnownURI": "https://network.mercury-hq.com/.well-known/agent-card.json",
  "url": "https://network.mercury-hq.com/a2a",
  "version": "1.0.0",
  "provider": {
    "organization": "MERCURY",
    "url": "https://network.mercury-hq.com/"
  },
  "documentationUrl": "https://network.mercury-hq.com/catalog",
  "iconUrl": null,
  "supportsAuthenticatedExtendedCard": null,
  "security": [
    {
      "x402": []
    }
  ],
  "securitySchemes": {
    "x402": {
      "type": "x402",
      "asset": "USDC",
      "scheme": "exact",
      "network": "eip155:8453",
      "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."
    }
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": null
  },
  "defaultInputModes": [
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "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 — success or an honest failure — 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"
      ]
    }
  ],
  "conformance": true,
  "conformance_errors": null,
  "homepage": null,
  "repository": null,
  "license": null,
  "pricing": null,
  "contact": null,
  "id": "4ab3cedb-805e-41d5-87bd-a45aa7196a5a"
}