x402 Settlement Schemes on Arc
Payments Protocol Notes / 0.001300 USDCreceipt evidence
0xae08170e...793b1a
creator amount0.001300USDC
accrued -> claimable on-chain
Payments Protocol 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
amount0.001300 USDC
receipt hash0xae08170e4843dafc74ec0d1af386bd01f497b0d633549fbd25410eb757793b1a
previous hash0x61a97e0834eebdf95da8d00549fcc637a7c35c3034ff56161737fd1ec7014cc4
query id0x27984b52693c30ec
source idx402-settlement-schemes
creator wallet0x7777...7777
created at2026-07-07T03:41:00.048Z
payment resourceforum-fee-router:0xeff9bc359e8f2a5eabce55af3f1bb24f98eabf59
query payment hashnot reader-paid
payer0x4164F5B52ecc6F847f03071A287b0B59954cbcEe
Arc tx0x5119af13...a0144b
FeeRouter split165
FeeRouter createSplit0x239b744b...443490
FeeRouter pay0x5119af13...a0144b
contributorssingle recipient
canonical URLhttps://x402.org/
content fetched at2026-07-07T03:41:00.048Z
source content hash0xdc469fbdb642f0e8e87a62996882832a6d2ec3698e42480181af4f33fc13c221
source excerpt hash0x73ba7ecb49bae825c4bbe8a00893c8c9fc983094c4b2ac78197903350c9cda90
ownership proofseed-demo
ownership signernot verified
answer context
How should AI agents pay creators per citation on Arc?
Based on the purchased sources, AI agents should pay creators per citation on Arc using one of two settlement approaches: (1) the 'exact' scheme, which settles payment directly on Arc as a single USDC transfer via EIP-3009 authorization, making each citation a verifiable on-chain transaction; or (2) the Circle Gateway-batched scheme, which pools multiple signed authorizations for gasless sub-cent settlement. To handle the volume of sub-cent citations efficiently, creators should use FeeRouter, which routes USDC through an on-chain split contract to the creator's wallet, accumulates sub-cent citations into a claimable balance, and allows the creator to withdraw all accrued citations with a single claim call—avoiding per-citation gas costs.
Open answer evidenceExplains x402 payment protocol and Arc settlement mechanics for citations. Essential technical grounding.Seed/demo content from Payments Protocol Notes. Title: x402 Settlement Schemes on Arc. Excerpt: x402 turns HTTP 402 into a real payment step: a resource returns payment requirements, the client signs an EIP-3009 USDC authorization, and the server settles it. The 'exact' scheme settles that authorization directly on Arc as a single USDC transfer, so the reader's debit is a verifiable on-chain transaction. The Circle Gateway-batched scheme instead pools many signed authorizations for gasless sub-cent settlement, referenced by a Gateway payment id rather than one Arc tx. Tags: x402, eip-3009, settlement, arc, usdc. Canonical URL: https://x402.org/.