Gateway Nanopayments Primer
Circle Developer Notes / 0.002400 USDCreceipt evidence
0xdb3b37c8...cc2a8b
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 hash0xdb3b37c8f6badbfff7bbc2197bb533f5c60d163aecf698940e4727d865cc2a8b
previous hash0x175d362a524f607dea0c8c6b257c0aa623fa8ab86078ec13d5f543d9b137e6c9
query id0x521b07453475f115
source idcircle-gateway-nano
creator wallet0x2222...2222
created at2026-06-21T14:30:52.676Z
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.