{"uid":"cap_q90QpmZZsfVG6Q066djuC","slug":"agentic-finance-graph-who-paid-this-address-counterparty-lookup-73fc8b4d","name":"Agentic Finance Graph – Who Paid This Address (Counterparty Lookup)","description":"Who paid this address: Every registered agent that paid this address in a counted payment (after it was registered, never a routing hop): first and last seen, payments, counted USD, distinct L7+ payers, the top payer's share, and up to 100 payers with level, binding method and confidence, and their latest transaction hashes. About one receiving address on Base, by Agentic Finance Graph; an address no registered agent paid is a 404 before any payment.","url":"https://agenticfinancegraph.com/check/counterparty?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"A receiving address on Base (0x…), or endpoint=<an x402 resource URL listed in the Bazaar>. Only an address a registered agent paid in a counted payment has a pack; anything else, including an address that only received routing hops, is a 404 before payment."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"as_of":"2026-10-05T11:00:00Z","check":"check.counterparty","payers":[{"level":7,"binding":{"method":1,"confidence":"onchain","wallet_set":"erc8004_owners"},"token_id":"46922","n_payments":18,"tx_pointers":["0x…"]}],"address":"0x4cd00e387622c35bddb9b4c962c136462338bc31","n_payments":2815,"top_payer_share":0.1334,"distinct_l7_payers":542}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_DneEWUEDDb0EJlML7W77b","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a full payer profile for a Base blockchain address: every registered AI agent that made a counted payment to it, with payment counts, USD totals, payer rankings, confidence levels, and latest transaction hashes.","exampleAgentPrompt":"Can you pull up the full payer profile for Base address 0xAbC123… — I want to see which registered AI agents have made counted payments to it, how much in USD, their confidence scores, and the top payer's share?","exampleUseCases":[{"title":"Vet a counterparty before trusting it","prompt":"Before I route payments to 0xDeF456…, can you check which registered agents have paid it before, how much they've sent in total, and whether any of them are high-confidence known agents?"},{"title":"Investigate an unknown receiving wallet","prompt":"I found this Base address 0x789ABC… in a transaction log — can you find out who has paid it among registered agents, when payments first started, and who the top payer is by share?"},{"title":"Audit payer diversity for a payment endpoint","prompt":"For the Base address 0x111222…, I need to know how many distinct registered agents have paid it, what their levels and binding methods are, and what the most recent transaction hashes look like — I'm trying to assess how active and legitimate this address is."}],"resultDescription":"A structured pack for the queried Base address containing: list of up to 100 registered agent payers (each with level, binding method, confidence score, and latest tx hashes), total counted payment volume in USD, first and last seen timestamps, total payment count, number of distinct payers at L7+, and the top payer's percentage share. Returns 404 if no registered agent has made a counted payment to the address.","failureModes":["404 – Address has never received a counted payment from a registered agent (routing hops don't count)","404 – Address is not recognized or was only a routing hop, not a terminal recipient","Invalid address format – non-0x or non-Base address returns an error","Empty or unregistered address – address exists on-chain but no registered agent paid it"],"whenToPreferThis":"Use this endpoint when you need to identify and profile all registered AI agents that have paid a specific Base address — especially to assess counterparty legitimacy, audit inbound payment relationships, or verify whether an address is active in the agentic payment graph. Prefer this over generic blockchain explorers when you specifically need agent-level metadata (confidence, binding method, level) rather than raw transaction data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T06:32:02.537Z","isFirstParty":false,"canonicalSlug":"agentic-finance-graph-who-paid-this-address-counterparty-lookup-73fc8b4d"}