{
  "schema": "voidly-pay-probe-attest-info/v1",
  "name": "Voidly Probe Attestation",
  "description": "Pay 0.5¢ (5,000 micro-credits) to receive a Voidly-signed attestation that a URL was reachable from N of M global probes at timestamp T. Useful for verifiable evidence in agent workflows: fact-checking, audit trails, anti-hallucination proofs, news verification.",
  "endpoint": "https://api.voidly.ai/v1/pay/probe-attest",
  "method": "GET",
  "query_params": {
    "domain": "Required. Hostname to attest (e.g. twitter.com).",
    "quote_id": "Optional on second call. The quote_id returned by the 402 challenge."
  },
  "pricing": {
    "amount_micro": 5000,
    "amount_usdc": 0.005,
    "currency": "voidly-credit",
    "recipient_did": "did:voidly:PBcsB2avN4ZfDC5yvEwBBT"
  },
  "flow": [
    "GET /v1/pay/probe-attest?domain=twitter.com → HTTP 402 + quote_id",
    "Pay the quote via /v1/pay/x402/verify or any x402 client",
    "GET /v1/pay/probe-attest?domain=twitter.com&quote_id=<id> → 200 + signed attestation"
  ],
  "schema_url": "https://api.voidly.ai/.well-known/voidly-probe-attest.json",
  "facilitator_key_url": "https://api.voidly.ai/v1/pay/x402/facilitator-key",
  "probe_network": {
    "nodes": 37,
    "domains_monitored": 62,
    "refresh_minutes": 5
  },
  "$why_unique": "Voidly is the only x402 facilitator with a global probe network. Stripe, Coinbase, ATXP, Dexter — none can produce signed probe attestations because they don't run probes."
}