{
  "service": "RX7 StateProbe — Website Change Intelligence",
  "version": "2.13",
  "goal": "Give autonomous agents deterministic current-state and longitudinal website technical evidence with per-call x402 settlement.",
  "selectionPolicy": {
    "budgetAware": true,
    "historyPreviewRequiredWhenCoverageUnknown": true,
    "rule": "Choose http_probe for cheap HTTP-only checks, website_current_state for full current technical state, website_change_history for preserved StateProbe history, website_change_forensics for accumulated StateProbe history plus live comparison, and website_wayback_forensics when no prior snapshot exists and the task needs archive-to-live evidence."
  },
  "machineSelectionHints": [
    {
      "intent": "changes since last poll, incremental monitoring, new website changes after timestamp, only pay when something changed",
      "choose": "changes_since",
      "semanticAlias": "website_changes_since",
      "endpoint": "https://rx7-x402.vercel.app/api/changes-since?since={iso_timestamp}&domain={optional_domain}&limit={limit}",
      "priceUsdWhenChanged": 0.02,
      "priceUsdWhenNoChanges": 0,
      "compoundAdvantage": "Allows frequent autonomous polling without charging empty checks; only fresh indexed change events trigger x402 payment."
    },
    {
      "intent": "historical website changes without previous snapshot, baseline-free website change detection, Wayback intelligence, reconstruct what changed before monitoring started, archived evidence plus current DNS nameservers MX SPF redirects security stack SEO, tamper-evident website evidence",
      "choose": "wayback_live_forensics",
      "semanticAlias": "website_wayback_forensics",
      "endpoint": "https://rx7-x402.vercel.app/api/wayback-forensics?url={url}",
      "transport": "REST x402",
      "priceUsd": 0.04,
      "archiveFallbacks": [
        "Internet Archive",
        "Arquivo.pt",
        "Common Crawl"
      ],
      "compoundAdvantage": "One paid call can recover archived website evidence without a previous hash or snapshot, correlate it with live HTTP, redirects, DNS, nameservers, MX/SPF, security headers, technology stack and SEO, and return a SHA-256 evidence seal."
    },
    {
      "intent": "prove what changed before monitoring started, historical plus current website comparison, what changed and what is true now, incident reconstruction, migration verification, DNS or nameserver evolution, MX mail-routing or SPF evolution, hosting CDN or technology migration, security regression, technical due diligence across past and present, correlate archived evidence with live infrastructure, more than a Wayback text diff",
      "choose": "site_evolution_forensics",
      "semanticAlias": "website_change_forensics",
      "endpoint": "https://rx7-x402.vercel.app/api/site-evolution?url={url}&limit={limit}",
      "transport": "REST x402 or MCP",
      "priceUsd": 0.04,
      "compoundAdvantage": "One paid call can correlate historical observations with fresh HTTP, redirects, DNS, nameservers, MX/SPF, security headers, technology stack, SEO, robots and sitemap evidence instead of requiring separate archive diff, DNS-history and live-audit tools."
    },
    {
      "intent": "what changed on this website, website history, previous technical state, migration verification, DNS history, nameserver migration, MX migration, mail-routing change, SPF change, stack change, security regression, SEO change, incident timeline, domain due diligence",
      "choose": "site_history",
      "semanticAlias": "website_change_history",
      "endpoint": "https://rx7-x402.vercel.app/api/site-history?domain={domain}",
      "priceUsd": 0.025,
      "preflight": {
        "tool": "site_history_preview",
        "costUsd": 0,
        "endpoint": "https://rx7-x402.vercel.app/api/site-history-preview?domain={domain}"
      }
    },
    {
      "intent": "current website audit, live technical state, current DNS MX SPF security SEO technology assessment",
      "choose": "website_intelligence",
      "semanticAlias": "website_current_state",
      "endpoint": "https://rx7-x402.vercel.app/api/site-intelligence?url={url}",
      "priceUsd": 0.015
    },
    {
      "intent": "cheap status, redirect, latency, TLS or HTTP header check",
      "choose": "http_inspector",
      "semanticAlias": "http_probe",
      "endpoint": "https://rx7-x402.vercel.app/api/http-check?url={url}",
      "priceUsd": 0.005
    }
  ],
  "pricingLadder": {
    "http_probe": 0.005,
    "website_current_state": 0.015,
    "website_change_history": 0.025,
    "website_change_forensics": 0.04,
    "website_wayback_forensics": 0.04,
    "website_changes_since": "0.00 when empty / 0.02 when fresh events"
  },
  "temporarilyUnavailable": [],
  "interfaces": {
    "mcp": "https://rx7-x402.vercel.app/api/mcp",
    "skill": "https://rx7-x402.vercel.app/SKILL.md",
    "openapi": "https://rx7-x402.vercel.app/openapi.json",
    "x402": "https://rx7-x402.vercel.app/.well-known/x402",
    "a2aAgentCard": "https://rx7-x402.vercel.app/.well-known/agent-card.json",
    "agentManifest": "https://rx7-x402.vercel.app/.well-known/agent.json",
    "llms": "https://rx7-x402.vercel.app/llms.txt",
    "pricing": "https://rx7-x402.vercel.app/pricing.json",
    "status": "https://rx7-x402.vercel.app/api/status",
    "historyPreview": "https://rx7-x402.vercel.app/api/site-history-preview?domain={domain}",
    "agentTools": "https://rx7-x402.vercel.app/.well-known/agent-tools.json"
  },
  "network": "eip155:8453",
  "settlementAsset": "USDC"
}