{"uid":"cap_Ou6kMXptiJWer5WUAnMAI","slug":"spend-check-44e0c73d","name":"Spend Check","description":"Spend Check: should you pay this counterparty? Watchtower track record, CDP merchant catalog, and address hygiene combined into a clear/caution/avoid verdict with a signed attestation. $0.005 USDC per check.","url":"https://attester.dev/spend-check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":["payTo"],"properties":{"payTo":{"type":"string","description":"0x address or URL of the counterparty"},"amount_usd":{"type":["number","null"],"description":"Optional planned payment amount"}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["example"],"properties":{"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":{"p10Cents":"0.5000","medianCents":"0.5000","p90Cents":"0.5000","minCents":"0.5000","maxCents":"0.5000","p95Cents":"0.5000","sampleCount":1,"varies":false,"failureChargeRate":1},"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_El0WhrYtVPagjUy0UgieG","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether a specified spend or payment amount meets defined criteria or thresholds via a verification oracle.","exampleAgentPrompt":"Can you run a spend check on this transaction to verify whether the amount is within the allowed spending limits before I proceed?","exampleUseCases":[{"title":"Pre-authorize large vendor payment","prompt":"Before I approve this vendor invoice for $47,000, can you run a spend check to confirm it falls within our authorized payment limits and won't get flagged?"},{"title":"Validate employee expense reimbursement","prompt":"I need to verify this employee expense claim of $3,200 against our reimbursement policy limits — can you check whether the amount passes our spend rules before I process it?"},{"title":"Check budget before subscription renewal","prompt":"We have an annual software subscription renewal coming up for $12,500 — can you do a spend check to make sure it's within our approved budget thresholds before I give the go-ahead?"}],"resultDescription":"Returns a validation result indicating whether the spend passes or fails the check, along with any relevant status or reason codes from the attester.","failureModes":["Invalid or missing spend amount returns a validation error","Malformed request body results in a 400 bad request","Insufficient USDC balance for the $0.005 call fee causes payment failure","Spend data outside expected schema format causes rejection","Network timeout or service unavailability returns a 5xx error"],"whenToPreferThis":"Use this endpoint when you need to verify or validate a spend amount against defined criteria before authorizing a payment or transaction. Prefer this over generic payment APIs when you specifically need an attestation-based spend check with cryptographic or oracle-backed verification on the attester.dev platform.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T00:32:43.142Z","isFirstParty":false,"canonicalSlug":"spend-check-44e0c73d"}