{"uid":"cap_K3pFNNZnWCM4xxluuhzK-","slug":"kertivo-shield-full-history-address-check-612c274a","name":"Kertivo Shield Full-History Address Check","description":"Full-history address-poisoning check before you send USDC on Base. Same risk/lookalike/seenBefore logic as /address/check, but funding history comes from ONE Blockscout index call (x402, up to the sender's 500 most recent Base USDC transfers; v2 page fallback) so coverage is usually the sender's full Base USDC history. Body {from, to}. Not charged if the index is down. Cheap partial/RPC tier: POST /address/check ($0.001).","url":"https://kertivo.com/address/check/full?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"to":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"Intended recipient (aliases: recipient, toAddress)"},"from":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"Sender address (aliases: sender, fromAddress). Required for /full."},"chain":{"type":["string","integer"],"description":"Optional. Base only."},"token":{"type":"string","description":"Optional. USDC only."},"contacts":{"type":"array","items":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$"},"maxItems":50,"description":"Optional: up to 50 trusted addresses / address book (aliases: known_addresses, known)."}}},"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":null,"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_Um8OWyU3-3egzCEDztOi_","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":"Full-history address-poisoning detection for USDC sends on Base, pulling up to the sender's 500 most recent Base USDC transfers via Blockscout to check if the recipient is a lookalike or previously-unseen address.","exampleAgentPrompt":"Before I send USDC on Base to 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, run a full-history address-poisoning check — my sending address is 0x1234567890abcdef1234567890abcdef12345678 — and tell me if it's a lookalike or if I've never sent to it before.","exampleUseCases":[{"title":"Pre-send address poisoning screen","prompt":"I'm about to send USDC on Base to 0xDe3f2b9A1c4E7F0d2B6a9C3E8D1F4A7B0C5E2D9 from my wallet 0x9A8B7C6D5E4F3A2B1C0D9E8F7A6B5C4D3E2F1A0B — can you do a full-history poisoning check to make sure this isn't a lookalike address trying to steal my funds?"},{"title":"New payee verification for DeFi agent","prompt":"My DeFi automation agent is about to pay 0x4F3a2B1C0D9E8F7A6B5C4D3E2F1A0B9C8D7E6F5 from 0x1A2B3C4D5E6F7A8B9C0D1E2F3A4B5C6D7E8F9A0B — run the full Kertivo Shield check and flag it if this address has never appeared in my Base USDC history or looks suspiciously similar to one of my known contacts: 0xABC123def456ABC123def456ABC123def456ABC1."},{"title":"Post-clipboard paste recipient check","prompt":"I just pasted a recipient address 0xF1E2D3C4B5A6978869706154433221100FFEEDD into my wallet app — before I confirm the USDC send from 0x0A1B2C3D4E5F6A7B8C9D0E1F2A3B4C5D6E7F8A9B, use Kertivo's full-history check to tell me whether this address is new to my transaction history or matches any address-poisoning pattern."}],"resultDescription":"Returns a risk assessment indicating whether the recipient address is a likely address-poisoning attempt, including lookalike detection results, whether the address has been seen before in the sender's Base USDC transfer history (up to 500 most recent transactions via Blockscout), and an overall risk verdict. If the Blockscout index is unavailable, the charge is waived.","failureModes":["Blockscout index unavailable — call is not charged, but full history coverage is not provided","Invalid Ethereum address format for 'from' or 'to' fields — 400 validation error","Address not found in any Base USDC history — returns 'never seen before' flag rather than an error","Network timeout on Blockscout query — may fall back to v2 page or partial RPC tier","Payment failure via x402 protocol — call rejected before processing"],"whenToPreferThis":"Choose this endpoint over /address/check (the cheaper $0.001 partial/RPC tier) when you need maximum coverage of the sender's Base USDC transfer history — up to 500 transactions via Blockscout — and the additional accuracy is worth $0.005 per call. Ideal for high-value transfers, automated DeFi agents making recurring payments, or any scenario where address-poisoning risk is a serious concern and partial history is insufficient.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T06:41:46.751Z","isFirstParty":false,"canonicalSlug":"kertivo-shield-full-history-address-check-612c274a"}