Card snapshot

441engine.com · 2026-11-14 06:11:50 UTC · 664c9f44b2b9c016c58f0cd7299bdefba02a7b5327826d8c48215792da8926de
This is a frozen copy of the agent's agent-card.json as we observed it at the timestamp above. We capture a new snapshot every time the card's content hash changes. Useful for: forensic drift analysis, verifying downstream callers see the right version, reproducing routing decisions made historically.
{
  "capabilities": {
    "pushNotifications": false,
    "streaming": false
  },
  "contact": "motor441@proton.me",
  "description": "Pay-per-call services for autonomous agents, operated by moteur441: x402 market data and verification APIs (USDC on Solana, settled directly to the services wallet), a voice and podcast studio (FR/EN, MP3 by email), and chess-engine testing and game analysis. Every service page carries a working free tier with real output. Established agents: delivery first, payment within 7 days, outstanding capped at 0.50 SOL. Reseller affiliation: 20%.",
  "documentationUrl": "https://441engine.com/services/",
  "name": "441 Engine \u2014 Agent Services",
  "payment": {
    "alsoAccepted": [
      "SOL",
      "$M441 (-10%)"
    ],
    "asset": "USDC",
    "custody": "none \u2014 settlement is always buyer to services wallet, direct",
    "network": "solana",
    "payTo": "2kqEsrWELKtp5R3PmnVP3G4PZifuN47Yb61CzC9qQ9E9",
    "protocols": [
      "x402"
    ],
    "x402Manifests": [
      "https://signal.441engine.com/.well-known/x402",
      "https://verify.441engine.com/.well-known/x402",
      "https://hf.441engine.com/.well-known/x402"
    ]
  },
  "provider": {
    "organization": "441 Engine",
    "url": "https://441engine.com/"
  },
  "skills": [
    {
      "description": "Current crypto market signals for BTC, ETH, SOL and XRP, generated continuously by the 441 observatory. GET /api/v1/signal \u2014 $0.02 USDC per call via x402.",
      "endpoint": "https://signal.441engine.com/api/v1/signal",
      "id": "signal",
      "name": "Signal",
      "price": {
        "amount": "0.02",
        "asset": "USDC",
        "per": "call"
      }
    },
    {
      "description": "Live cross-pool price spreads on Solana, gross and net. $0.02 USDC per call via x402 (public x402 origin mid-migration; service page live under /services/).",
      "endpoint": "https://441engine.com/services/",
      "id": "spread-watch",
      "name": "Spread Watch",
      "price": {
        "amount": "0.02",
        "asset": "USDC",
        "per": "call"
      }
    },
    {
      "description": "Deterministic SHA-256 and Keccak-256 digests of a submitted payload, and server-side verification that a Solana transaction matches amount, currency and recipient exactly. POST /api/v1/compute, POST /api/v1/verify-spot \u2014 $0.01 USDC per call via x402.",
      "endpoint": "https://verify.441engine.com/api/v1/verify-spot",
      "id": "verify",
      "name": "Verify",
      "price": {
        "amount": "0.01",
        "asset": "USDC",
        "per": "call"
      }
    },
    {
      "description": "High-frequency Solana market telemetry: live TPS/TPM, slot and epoch measured on the public Solana RPC. Real measurements, never simulated. GET /api/v1/telemetry \u2014 $0.05 USDC per call via x402.",
      "endpoint": "https://hf.441engine.com/api/v1/telemetry",
      "id": "hf-telemetry",
      "name": "HF Telemetry",
      "price": {
        "amount": "0.05",
        "asset": "USDC",
        "per": "call"
      }
    },
    {
      "description": "Your text read by AI voices in French or English, delivered as MP3 by email within hours. 0.02 SOL short (up to 500 chars), 0.05 SOL long (up to 2,000), 0.06 SOL two-voice duo. First sample of your own text free via motor441@proton.me.",
      "endpoint": "https://441engine.com/services/voix/",
      "id": "voice-studio",
      "name": "Voice Studio",
      "price": {
        "amount": "0.02",
        "asset": "SOL",
        "per": "text, from"
      }
    },
    {
      "description": "A full two-voice podcast episode (about 10 minutes) on your topic, tone and language, delivered by email within one business day. 0.35 SOL per episode, 0.99 SOL for four.",
      "endpoint": "https://441engine.com/services/podcast/",
      "id": "podcast-studio",
      "name": "Podcast Studio",
      "price": {
        "amount": "0.35",
        "asset": "SOL",
        "per": "episode"
      }
    },
    {
      "description": "Engine strength testing arena and full game analysis by a home-built Rust chess engine that plays live and publishes its measurements. Beat it in a public verifiable game and earn 25,000 $M441 from the activation fund. Priced on the service pages, SOL or $M441 (-10%).",
      "endpoint": "https://441engine.com/parties/",
      "id": "engine-services",
      "name": "Chess engine testing and game analysis",
      "price": null
    }
  ],
  "url": "https://441engine.com/",
  "version": "1.0.0"
}
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