Gateway Nanopayments Primer
Circle Developer Notes / 0.002400 USDCreceipt evidence
0x59e92417...e15b95
creator amount0.002400USDC
accrued -> claimable on-chain
Circle Developer Notes
This receipt binds a source payment to the answer that used it; FeeRouter-routed receipts accrue into creator-claimable balances. The previous hash links it into the append-only attribution ledger.
payment statusaccrued -> claimable on-chain
settlement modeforum-routed
amount0.002400 USDC
receipt hash0x59e924171b61b9c41b44026285c359241a7e01b3b3c9128b2cd4aeb1d5e15b95
previous hash0xe079bb0ae22d540a288e021da8219173d72d7deed27564807ed93541629770b3
query id0x9c55ab5ef538960f
source idcircle-gateway-nano
creator wallet0x2222...2222
created at2026-07-05T12:40:02.566Z
payment resourceforum-fee-router:0xeff9bc359e8f2a5eabce55af3f1bb24f98eabf59
query payment hash0xb4f058dee3a8f42b2dc25995933d92e0f5d324c402a9e5c50d38b05a913502ac
payer0x4164F5B52ecc6F847f03071A287b0B59954cbcEe
Arc tx0xd4c3ec2e...eec1bc
FeeRouter split137
FeeRouter createSplit0x9248d6ef...e0a1c3
FeeRouter pay0xd4c3ec2e...eec1bc
contributorssingle recipient
canonical URLhttps://developers.circle.com/gateway/nanopayments
content fetched at2026-07-05T12:40:02.566Z
source content hash0x9fd77b6a90017a90fd32f0c99d8620a4004f869026e5cca235d0ad918d19760e
source excerpt hash0x040ead003a061a3df77b69f1231ee277069666b951ead02b685c8626bd888d00
ownership proofseed-demo
ownership signernot verified
answer context
What is x402 on Arc?
x402 is a payment protocol standard used on Arc that enables nanopayments and sub-cent value transfers. It works by batching signed EIP-3009 authorizations so payments can clear at very small denominations without incurring per-payment gas costs. x402 is used in agent-to-agent commerce scenarios where AI agents pay each other for specialized services.
Open answer evidencereader paymentx402 settled
amount0.010000 USDC
payer0x9d2d...f6b2
payment hash0xb4f058de...3502ac
creator payouts (reader-paid)0.005200 USDC
protocol retained (reader-paid)0.004800 USDC
budget utilization52.0%
Explicitly explains x402 payments via Circle Gateway with EIP-3009 batching for sub-cent settlement without per-payment gas. Highly relevant to Arc x402 mechanics.Seed/demo content from Circle Developer Notes. Title: Gateway Nanopayments Primer. Excerpt: Circle Gateway batches signed EIP-3009 authorizations so x402 payments can clear at sub-cent values without per-payment gas. Tags: circle, gateway, eip-3009, x402, usdc. Canonical URL: https://developers.circle.com/gateway/nanopayments.