Gateway Nanopayments Primer
Circle Developer Notes / 0.002400 USDCreceipt evidence
0x000940b9...0a807b
paid to creator0.002400USDC
local proof
Circle Developer Notes
This receipt binds a source payment to the answer that used it. The previous hash links it into the append-only attribution ledger.
receipt hash0x000940b93ba2fa999c913a840505c2f9beb4264064dc88347be0026bc30a807b
previous hash0x5d7b3c764bf62f8ffd7eca5f270efb4c9e5867de87fc83d2994ddc42807321cc
query id0xb3a83efb7d55abc3
source idcircle-gateway-nano
creator wallet0x2222...2222
created at2026-06-23T11:02:18.303Z
payment resource/api/sources/circle-gateway-nano
query payment hashnot reader-paid
payerlocal proof
transactionpending settlement
FeeRouter splitnot FeeRouter-routed
FeeRouter createSplitnot FeeRouter-routed
FeeRouter paynot FeeRouter-routed
answer context
How can a budgeted AI agent buy publisher citations without overspending?
The paying agent treated "How can a budgeted AI agent buy publisher citations without overspending?" as a source-backed answer, not a free scrape. Circle Developer Notes: Circle Gateway batches signed EIP-3009 authorizations so x402 payments can clear at sub-cent values without per-payment gas. Indie Researcher: A source payment should be tiny, automatic, visible to the creator, and tied to the answer that reused the work. Forum Protocol: Forum-style mandates bound an agent budget, publish receipts, and make spend controls enforceable instead of advisory. It bought the minimum useful bundle of sources, paid each cited creator in USDC atomic units, and wrote a receipt chain that ties the answer to the citations that earned.
Open answer evidenceSelected by semantic overlap with the question and payment policy.