← Back to discover
httppayai
Pay preflight
Pay preflight: one call runs the Arc payee check and, when resource, nonce and amount are all present, the duplicate check. Pass ?payee=<0x>. Optional &payer=<0x>, &amount= (a USDC decimal like 0.01, or atomic units such as 3000 for $0.003 only when resource and nonce are set), &resource=<https URL>, &nonce=<0x and 64 hex>, &window= seconds. Without resource and nonce the duplicate half is NOT_CHECKED and nothing is recorded.
Resource URL
https://apexfaucet.xyz/api/x402/pay-preflight
Payment options
exactBase (8453)
$0.01 USDC
Max amount
- Pay to
- 0xd334ab5151c624cada654854e2879903dc4217ed
- Timeout
- 300s
Tags
payee checkduplicate paymentx402arcpreflight
For agents
Prompt snippet for AI agents
Find and pay for this x402 resource: URL: https://apexfaucet.xyz/api/x402/pay-preflight Type: http Sources: payai