CitePay MCP Server — Claude Tool for Paid Citation Queries
CitePay Markets / 0.001400 USDCreceipt evidence
0xc242395d...003f1a
creator amount0.001400USDC
accrued -> claimable on-chain
CitePay Markets
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
amount0.001400 USDC
receipt hash0xc242395df43e686efa082533afbd3e6d347e6401eb54d91e395804d860003f1a
previous hash0x88d9cf3781723f80d498a340b188af2700608025b9eb1025795764037525f59f
query id0xfadf1071b2c4428b
source idcitepay-mcp-server-claude-tool-for-paid-citation-queries
creator wallet0x5389...f105
created at2026-06-24T14:42:37.444Z
payment resourceforum-fee-router:0xeff9bc359e8f2a5eabce55af3f1bb24f98eabf59
query payment hashnot reader-paid
payer0x4164F5B52ecc6F847f03071A287b0B59954cbcEe
Arc tx0x248061da...b8a4c7
FeeRouter split45
FeeRouter createSplit0x77af82d7...6a3f00
FeeRouter pay0x248061da...b8a4c7
contributorssingle recipient
canonical URLhttps://citepay-markets.vercel.app/mcp
content fetched atnot recorded
source content hashnot recorded
source excerpt hashnot recorded
ownership proofnot verified
ownership signernot verified
answer context
How do AI agents pay creators per citation using USDC on Arc Testnet?
AI agents pay creators per citation using USDC on Arc Testnet through Circle Gateway's x402 protocol. The CitePay Markets platform implements this workflow: agents call the CitePay MCP Server (a Claude-native tool interface) with cite_query requests. Each citation triggers a nanopayment in USDC via Circle Gateway's batched EIP-3009 authorizations, which clear sub-cent values without per-payment gas costs. Payments settle on Arc Testnet with sub-second finality. Every PAY decision generates an on-chain receipt with SHA-256 evidence hash and content integrity proof, visible to creators. Agents can operate under spend policies (max price per citation, relevance thresholds, session caps) enforced via Arc's app kits. For agents without pre-funded wallets, Shadow Float provides behavior-backed USDC spending lines so they can buy x402 services before their own wallet is funded, with repayment and overreach blocking tracked on-chain.
Open answer evidenceMechanism layer: explains the native MCP server interface agents use to trigger paid citations without custom integration, essential to the 'how' of the payment flow.No paid excerpt recorded.