CitePay MCP Server — Claude Tool for Paid Citation Queries
CitePay Markets / 0.001400 USDCreceipt evidence
0xdb8f7fc5...918396
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 hash0xdb8f7fc5efcc9d4d40855ac45dc01fd8dde0f3077f9108a35a039ab2e3918396
previous hash0x8f1da28fd24fcaddf63c2993af8188221bd0e5eedfe9c94c455d36de9d15e0d7
query id0xdff62372a3671728
source idcitepay-mcp-server-claude-tool-for-paid-citation-queries
creator wallet0x5389...f105
created at2026-06-24T17:16:25.148Z
payment resourceforum-fee-router:0xeff9bc359e8f2a5eabce55af3f1bb24f98eabf59
query payment hashnot reader-paid
payer0x4164F5B52ecc6F847f03071A287b0B59954cbcEe
Arc tx0xba0c90e4...ddd66a
FeeRouter split116
FeeRouter createSplit0x1cc55802...65b85e
FeeRouter pay0xba0c90e4...ddd66a
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
What is the MCP protocol and how do AI agents use it to pay for citations?
The MCP (Model Context Protocol) is a standard interface that allows AI agents to call external tools and services natively. In the context of paid citations, MCP enables AI agents to access citation payment infrastructure without custom integration. CitePay ships as an MCP server exposing tools like cite_query, get_receipt, and check_policy. When an AI agent uses these MCP tools, it can query sources and automatically pay creators in USDC nanopayments on Arc via Circle Gateway's x402 protocol. Each citation payment generates an on-chain receipt with SHA-256 evidence hash and content integrity proof. The agent's spend is governed by a natural-language policy that controls max price per citation, relevance thresholds, session caps, and deduplication windows. This creates a transparent, verifiable citation economy where creators are paid per use of their work, and agents maintain auditable proof of every payment.
Open answer evidenceDirectly answers the core question: explains MCP server implementation, cite_query/get_receipt/check_policy tools, and how agents pay creators in USDC per citation without custom integration. Essential primary source.No paid excerpt recorded.