⚡ SUB-MILLISECOND MACHINE COMMERCE & AGENT RAILS

x402 Machine Settlement & Model Context Protocol

AI agents cannot swipe credit cards, solve CAPTCHAs, or navigate corporate billing portals. Edge Blue native settlement operates at the HTTP layer using RFC-standardized 402 status codes and cryptographic proof receipts.

By uniting Model Context Protocol (MCP) agent discovery with silicon enclave attestation, any autonomous AI agent can discover local NPU resources, negotiate sub-cent inference pricing, execute privately inside hardware enclaves, and receive an incontrovertible cryptographic execution receipt.

AUTONOMOUS MACHINE COMMERCE

Interactive x402 Micro-Settlement Simulator

Watch an autonomous AI agent negotiate, pre-authorize payment via HTTP 402, execute on local NPU silicon, and seal the execution receipt in real time:

x402 AGENT PROTOCOL TRACE // SUB-MILLISECOND CLEARING

[Ready] Click "RUN x402 EXECUTION CYCLE" above to initiate live protocol negotiation.

END-TO-END WIRE ARCHITECTURE

The 4-Phase Machine Execution Cycle

How autonomous agents transact, execute, and verify workloads with zero human supervision:

PHASE 01 // DISCOVERY

MCP Tool Discovery

The agent discovers Edge Blue nodes via Model Context Protocol (MCP) or the standardized /.well-known/x402 endpoint, querying supported tensor models, current TOPS capacity, and pricing.

PHASE 02 // NEGOTIATION

HTTP 402 Challenge

Upon initial request, the edge node challenges the caller with HTTP 402 Payment Required containing pricing terms, rail parameters, quote digest, and beneficiary escrow address.

PHASE 03 // EXECUTION

Hardware Enclave Run

The caller attaches an authorized micro-voucher. The edge enclave gate verifies the signature in-memory in <120 µs, unlocks the on-die NPU, and computes inference inside bus-encrypted RAM.

PHASE 04 // EVIDENCE

Cryptographic Receipt

The response returns HTTP 200 OK alongside an immutable execution receipt (vaara.receipt/v1) anchoring model hash, RTMR register measurements, and Ed25519 signature.

VERIFIABLE ATTESTATION ARTIFACT

Cryptographic Receipt Anatomy (`vaara.receipt/v1`)

Every output produced by an Edge Blue node carries tamper-evident hardware proof that counterparty agents and auditors can verify off-chain:

vaara.receipt.v1 // CANONICAL JCS JSON

{
  "version": "vaara.receipt/v1",
  "quote_id": "q_91a82f7c00e1",
  "enclave": {
    "type": "intel_tdx",
    "rtmr0": "0x8a92b1e4...b412",
    "rtmr1": "0xc71089ad...9e55",
    "rtmr2": "0x3f22d011...1a88",
    "rtmr3_weights": "0x7a8b9cf2...f4a1"
  },
  "execution": {
    "engine": "edge_npu",
    "compute_latency_ms": 3.6,
    "tokens_evaluated": 256,
    "prompt_sha256": "0x9f83...a12c"
  },
  "settlement": {
    "protocol": "x402",
    "settlement_rail": "multi_rail",
    "fee_micros": 400,
    "clearing_status": "settled"
  },
  "signature": {
    "alg": "Ed25519",
    "key_id": "edge_node_s1",
    "sig": "MEQCIF9v8...2a8b9=="
  }
}

Silicon-Sealed RTMR3:

Proves that the exact authorized neural network weights and model parameters executed the query, with zero prompt injection or tampering by the host.

Sub-Cent Direct Clearing:

Settles at fractions of a cent per inference directly into the node operator's self-custody wallet, eliminating 30% aggregator platform tolls.

Universal Multi-Rail Clearing:

Supports institutional settlement rails on equal footing with zero proprietary blockchain bias or synthetic token lock-in.

AGENT ECOSYSTEM COMPATIBILITY

Model Context Protocol (MCP) Tool Definition

Integrate Edge Blue silicon compute into any modern agent framework (Claude, Gemini, AutoGPT) via standard MCP declarations:

mcp_server.json // EDGE SILICON TOOL CONTRACT

{
  "name": "edge_infer_attested",
  "description": "Executes private neural inference on local Edge Blue NPU silicon with hardware attestation.",
  "parameters": {
    "type": "object",
    "properties": {
      "prompt": { "type": "string", "description": "Input prompt or document chunk to evaluate" },
      "model": { "type": "string", "enum": ["phi-4-mini", "llama-3.2-3b", "bge-micro-v2"] },
      "settlement_rail": { "type": "string", "description": "Preferred settlement rail for micro-fee voucher" }
    },
    "required": ["prompt", "model"]
  }
}

SILICON AWAKENING

Ready to Explore the Physical NPU Architecture?

See how a tiny, silent silicon matrix running at 15 Watts matches the inference throughput of screaming 700W server racks with zero prompt data egress.