SpendPreflight

unreachable

Spend preflight for AI agents. Send the x402 PaymentRequired body (v1 or v2) you received, or a cart, plus optional rules (per-payment max, hold threshold, daily cap, allowlists, new-domain days). Returns allow|hold|block with reasons, the cheapest acceptable payment option, and a receipt id. Read-only: never signs, settles, or holds funds. Use before every payment.

AIBasex402 v2exactpayee-check.payee-check.workers.dev ↗︎

Settled via Coinbase.

All recent payment-challenge probes failed.

Transactions · 30d
2
Volume · 30d
$0.03
Unique buyers · 30d
1
Uptime · 30d
0.0%
Latency p50
—
Reported calls · 30d
2

Endpoints (2 live)

  • POST /v1/preflight — Spend preflight for AI agents. Send the x402 PaymentRequired body (v1 or v2) you received, or a cart, plus optional rules (per-payment max, hold threshold, daily cap, allowlists, new-domain days). Returns allow|hold|block with reasons, the cheapest acceptable payment option, and a receipt id. Read-only: never signs, settles, or holds funds. Use before every payment. (0.02 USDC on Base)
  • GET /v1/check — Payee risk check. Screens a payee wallet address and name against the OFAC SDN sanctions list and checks the merchant domain's registration age and DNS. Returns risk low|medium|high|unknown with flags such as sanctioned_address, sanctioned_name_possible, new_domain. Use before paying an unfamiliar merchant or wallet. (0.01 USDC on Base)

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