citation payments recorded0.004200USDC
agentic reasoning loop / server judge-strict / 0xdff62372a3671728
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.
3 sources bought / 3 cited / 0 refunded
citations3
receipts3
reader paid0.000000
creator payouts (reader-paid)0.004200
protocol retained (reader-paid)not reader-paid
budget utilizationn/a
latest receipt0xdb8f7fc5...918396
query id0xdff62372a3671728
query hash0x0130c50094da4457200ba65472ef78f12c141ad5d2cb57872164094d951a91e5
answer hash0x6bbca2aba3ec648eb0d302bbf279d96930b6e815a0c8f1f6d0c5812e9b00ade4
created at2026-06-24T17:16:25.148Z
record agent modellm
agent modelnot recorded
server agent modejudge-strict
receipt count3
reader payment hashnot reader-paid
reader paid0.000000 USDC
creator payouts (reader-paid)0.004200 USDC
protocol retained (reader-paid)not reader-paid
budget utilizationn/a
agent accountability
Budget envelope and proof anchors
budget envelope0.006500 USDC
spent on sources0.004200 USDC
unused0.002300 USDC
source cap3/18 bought
covenant policynot published locally
allowed domainsregistered source URLs only
TrackRecord anchornone
SlashBond statusnot published locally
receipt chain hash0x6da77771e10426ab0764618a3d8c3afebd2ce6fcb85c8730b6850106005637c7
source market
Budgeted citation decision
source budget0.006500
agent spent0.004200
remaining0.002300
market sweep3/18
CitePay Markets — AI Agent Citation Marketplace on ArcCitePay Markets / score 18 / 0.001200 USDC
Provides concrete implementation details: AI agents paying creators in USDC nanopayments via Circle Gateway x402, on-chain receipts with SHA-256 evidence hash, and settlement mechanics. Demonstrates the payment flow.Driplet � pay-per-second live-stream monetizationRising Technology / score 13 / 0.001500 USDC
Describes streaming nanopayments but not MCP protocol or citation payment workflows. Different payment domain.CitePay MCP Server — Claude Tool for Paid Citation QueriesCitePay Markets / score 11 / 0.001400 USDC
Directly 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.Citation Economics for AI AnswersIndie Researcher / score 10 / 0.001200 USDC
Discusses citation payment principles but not MCP protocol or agent implementation.CitePay Live Auction — Citation Price DiscoveryCitePay Markets / score 10 / 0.001500 USDC
Describes price discovery auction but not MCP protocol or agent payment workflows. Market mechanism rather than protocol.CitePay Natural Language Policy BuilderCitePay Markets / score 10 / 0.001600 USDC
Explains the spend control layer: how agents define citation payment policies (max price, relevance, bonding, session caps, dedup). Completes the picture of agent-side payment governance and policy enforcement.CitePay Knowledge Bounties — USDC-Funded Crowdsourced AI Knowledge GapsCitePay Markets / score 10 / 0.001700 USDC
Describes bounty mechanism for knowledge gaps but not MCP or citation payment protocol. Orthogonal to the core question.CitePay Research Sessions — Contextual Multi-Turn AI Research with Paid ReceiptsCitePay Markets / score 10 / 0.001800 USDC
Describes multi-turn research sessions and receipt trails but doesn't explain MCP protocol or how agents invoke citation payments. Application feature rather than protocol mechanism.CitePay Economic Intelligence Dashboard — Live AI Knowledge Economy AnalyticsCitePay Markets / score 10 / 0.001900 USDC
Analytics dashboard for citation economy metrics. Useful for observing outcomes but doesn't explain MCP protocol or agent payment mechanics.CitePay Autonomous Knowledge Gap Agent — Self-Improving Citation MarketCitePay Markets / score 10 / 0.002000 USDC
Describes autonomous gap-filling agent but not MCP protocol or citation payment mechanics. Application use case rather than protocol explanation.Shadow Float: Spend Before Fundingqdee / score 9 / 0.001500 USDC
Describes agent spending lines and debt mechanics but not MCP protocol or citation payment workflows.Covenant Account Spend ControlsForum Protocol / score 8 / 0.001500 USDC
Covers spend control mandates and receipts but not MCP protocol or citation payment invocation.LeptonWeb Build LogLeptonWeb Lab / score 8 / 0.001700 USDC
Builder log mentioning Tollgate and x402 but doesn't explain MCP protocol or agent citation payment mechanics.Lepton RFB NotesCanteen Research / score 7 / 0.001800 USDC
Skipped: lower value than the purchased source bundle.CitePay On-Chain Audit — Verifiable Citation Receipts on ArcCitePay Markets / score 2 / 0.001000 USDC
Shows on-chain audit and receipt verification but not MCP protocol or how agents invoke citation payments.RSS Distribution SurfaceOpen Feed Maintainers / score 1 / 0.000900 USDC
Discusses RSS as distribution surface for pay-per-citation but not MCP protocol or agent mechanics.Arc Settlement SketchArc Builder Desk / score 1 / 0.002200 USDC
Describes Arc settlement and finality but not MCP or citation payment workflows. Settlement layer detail, not agent-facing protocol.Gateway Nanopayments PrimerCircle Developer Notes / score 1 / 0.002400 USDC
Covers x402 batching and EIP-3009 mechanics but doesn't address MCP or agent citation workflows specifically. Infrastructure detail rather than agent integration pattern.paid citations
Sources used
CitePay MCP Server — Claude Tool for Paid Citation Queries
CitePay Markets / 0.001400 USDCUnverified / Ownership is not verified; payouts remain escrow-held. / excerpt not recordedDirectly 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.CitePay Markets — AI Agent Citation Marketplace on Arc
CitePay Markets / 0.001200 USDCUnverified / Ownership is not verified; payouts remain escrow-held. / excerpt not recordedProvides concrete implementation details: AI agents paying creators in USDC nanopayments via Circle Gateway x402, on-chain receipts with SHA-256 evidence hash, and settlement mechanics. Demonstrates the payment flow.CitePay Natural Language Policy Builder
CitePay Markets / 0.001600 USDCUnverified / Ownership is not verified; payouts remain escrow-held. / excerpt not recordedExplains the spend control layer: how agents define citation payment policies (max price, relevance, bonding, session caps, dedup). Completes the picture of agent-side payment governance and policy enforcement.answer receipts
Payment trail
CitePay Marketspayment status: accrued -> claimable on-chain / creator recipient 0x5389...f105ledger 0xdb8f7fc5...918396 / prev 0x8f1da28f...15e0d7
CitePay Marketspayment status: accrued -> claimable on-chain / creator recipient 0x5389...f105ledger 0xf896cb5f...eeaa1a / prev 0xdb8f7fc5...918396
CitePay Marketspayment status: accrued -> claimable on-chain / creator recipient 0x5389...f105ledger 0x6da77771...5637c7 / prev 0xf896cb5f...eeaa1a