{"uid":"cap_4XOdJgTRTogRsPSoS2HWQ","slug":"aiworker-data-wallet-check-0c252e1a","name":"aiworker-data Wallet Check","description":"Deterministic-first data for agents, paid per call in USDC over x402 v2: DeFi yields, Base token and wallet cards, Polymarket odds and backtests, news, fact checks, cited briefs. 20 routes, $0.005-$1","url":"https://aiworker.duckdns.org/v1/check/wallet","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"address":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"The 0x-prefixed 40-hex Base address to check"}}},"responseSchema":{"type":"json","example":{"kind":"eoa","flags":[],"address":"0x46f64bec31eaf281176f9bb5899107a80e932b45","sources":[{"ok":true,"url":"https://base.blockscout.com/api/v2/addresses/0x46f64bec31eaf281176f9bb5899107a80e932b45","name":"blockscout_address"}],"summary":"EOA on Base, first seen 2024-02-24, last active 2026-09-10, 412 transactions, 0.184213 ETH, 1 token holding.","holdings":[{"symbol":"BRETT","address":"0x532f27101965dd16442E59d40670FaF5eBB142E4","balance":"15200.5","decimals":18,"balance_usd":null}],"tx_count":412,"disclaimer":"on-chain facts only; no identity, no labels, no advice","first_seen":"2024-02-24T06:09:27.000Z","attribution":"Data: Blockscout (Base), Base RPC","eth_balance":"0.184213","generated_at":"2026-09-11T00:00:00.000Z","last_activity":"2026-09-10T18:41:03.000Z","token_transfer_count":1287}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_a5K-wTMfc9CT7jOp1jPT5","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns on-chain facts about a Base network wallet address: ETH balance, token holdings, transaction counts, and activity timeline","exampleAgentPrompt":"Can you pull up the on-chain profile for Base wallet 0x46f64bec31eaf281176f9bb5899107a80e932b45 — I want to see its ETH balance, token holdings, transaction count, and when it was last active?","exampleUseCases":[{"title":"Due diligence on a counterparty wallet","prompt":"Before I send funds, can you check the Base address 0x1234567890abcdef1234567890abcdef12345678 — how old is it, how many transactions has it made, and what tokens does it hold?"},{"title":"Portfolio snapshot for a tracked address","prompt":"Give me a quick on-chain summary of 0xabcdef1234567890abcdef1234567890abcdef12 on Base — ETH balance, any token holdings, and the last time it was active."},{"title":"Identify wallet type before interacting","prompt":"Is 0x46f64bec31eaf281176f9bb5899107a80e932b45 a regular wallet or a smart contract on Base, and what's its current ETH balance?"}],"resultDescription":"A JSON object containing: wallet kind (EOA or contract), ETH balance, list of token holdings with symbol/balance/decimals, total transaction count, token transfer count, first-seen timestamp, last-activity timestamp, any flags, a human-readable summary sentence, and attribution to Blockscout/Base RPC data sources.","failureModes":["Invalid address format (not 0x + 40 hex chars) returns a validation error","Address not found on Base returns empty or null holdings","Blockscout API downtime may cause upstream fetch failure","Smart contract addresses return kind='contract' but may have limited EOA-specific fields","Very new addresses with no transactions may return minimal data"],"whenToPreferThis":"Use this endpoint when you need deterministic, sourced on-chain facts about a specific Base network address — balances, activity history, and token holdings — rather than price feeds or identity/label lookups. It is paid per-call via USDC/x402, making it suitable for agent workflows that need verifiable blockchain data without running a full node or managing RPC infrastructure.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:30:45.215Z","isFirstParty":false}