{"uid":"cap_kXVqsj6XInjRT_nXEAFJa","slug":"whale-transfer-alerts-blockscout-da06e7ad","name":"Whale Transfer Alerts (Blockscout)","description":"Live whale alerts: the largest recent USDC / WETH / cbBTC / USDT / WBTC transfers on Base or Ethereum, with USD value, from/to wallets, counterparty labels (contract? verified? scam-flagged?), tx hash and age. The smart-money / whale-watching feed trading agents poll to front-run big flows — a Nansen-style whale alert without the subscription. Each whale wallet chains into /crypto/smart-money (what is this wallet doing?) and /crypto/wallet (what does it hold?).","url":"https://store.agentexchange.work/crypto/whales","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"],"type":"string"},"queryParams":{"type":"object","properties":{"chain":{"type":"string","description":"base|ethereum (default base)"},"limit":{"type":"number","description":"1-50, default 15"},"token":{"type":"string","description":"usdc|weth|cbbtc (base) or usdc|usdt|weth|wbtc (ethereum), or any ERC-20 contract 0x... (default usdc)"},"min_usd":{"type":"number","description":"Minimum transfer size in USD (default 10000)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"count":{"type":"number"},"whales":{"type":"array"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.09","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0r4QFiMPBp04IP3tWrdVu","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the largest recent large-cap token transfers on Base or Ethereum with USD value, wallet labels, and transaction metadata for whale-watching and smart-money flow monitoring.","exampleAgentPrompt":"Show me the 20 biggest USDC transfers on Ethereum in the last hour, only ones over $50,000, and flag which wallets are contracts or scam-tagged.","exampleUseCases":null,"resultDescription":"A JSON array of recent large token transfers, each including the USD value, sender and recipient wallet addresses with counterparty labels (contract, verified, or scam-flagged), the transaction hash, token symbol, and transfer age — ordered by transfer size descending.","failureModes":["Unsupported token symbol for the selected chain returns an error or empty result","min_usd set too high returns an empty whale list if no transfers qualify","Invalid chain value (not 'base' or 'ethereum') returns a validation error","limit out of range (>50 or <1) returns a schema validation error","Blockscout upstream outage causes 503 or timeout","ERC-20 contract address that is not indexed returns no results"],"whenToPreferThis":"Choose this endpoint when you need real-time, ready-parsed whale transfer data with labeled counterparties (scam flags, contract status, verified tags) for Base or Ethereum without needing a Nansen or Whale Alert subscription. Prefer it over raw on-chain RPC calls when you want USD-denominated filtering, human-readable wallet labels, and a structured feed suitable for trading signal pipelines or portfolio monitoring agents.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:49:51.433Z","isFirstParty":false}