{"uid":"cap_dkhTy9Ie5liT00Jwoagjg","slug":"cortexcloud-whale-alerts-063de984","name":"CortexCloud Whale Alerts","description":"Pay-per-call on-chain data API for AI agents: token prices, risk scoring, wallet intelligence, whale alerts, balances, tx history, cross-chain comparison — evidence-backed JSON, settled in USDC on Base via x402. No API keys, no signup.","url":"https://api.cortexcloud.org/v1/data/whale-alerts?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"chain":{"type":"string","default":"ethereum"},"limit":{"type":"integer","default":50,"maximum":100,"minimum":1},"address":{"type":"string","pattern":"^0x[0-9a-fA-F]{40}$","description":"Optional wallet to watch."},"min_usd":{"type":"number","default":100000}}},"responseSchema":{"type":"object","format":"application/json","example":{}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_tWjip3f6QQTCvy2K9_kWF","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns large on-chain token transfers (whale movements) above a specified USD threshold for a given blockchain, optionally filtered by wallet address.","exampleAgentPrompt":"Show me the 50 largest token transfers on Ethereum above $500,000 in the last fetch — I want to see if any whales are moving funds right now.","exampleUseCases":[{"title":"DeFi whale activity monitoring","prompt":"Pull the top 100 whale transactions on Ethereum worth at least $250,000 each — I want to see if any big wallets are repositioning before the market opens."},{"title":"Suspicious wallet outflow detection","prompt":"Check for any large transfers from wallet 0xAbCd1234567890abcdef1234567890abcdef1234 on Ethereum above $100,000 — I need to know if this address is moving funds."},{"title":"Cross-chain large transfer scan","prompt":"Show me up to 25 whale-sized transfers on the Base chain with a minimum value of $500,000 — I'm trying to spot unusual on-chain activity today."}],"resultDescription":"A JSON object containing a list of recent large on-chain transfers matching the specified chain, minimum USD value, and optional wallet filter. Each record typically includes sender/receiver addresses, transfer amount in USD, token details, and transaction metadata. Up to 100 results can be returned per call.","failureModes":["Invalid wallet address format (must match ^0x[0-9a-fA-F]{40}$) returns a validation error","Limit out of range (must be 1–100) returns a parameter error","Unsupported chain value may return empty results or an error","Insufficient USDC balance or failed x402 payment returns a 402 Payment Required response","No whale transfers found above the min_usd threshold returns an empty list"],"whenToPreferThis":"Use this endpoint when you need real-time detection of large on-chain token transfers (whale alerts) for blockchain monitoring, DeFi intelligence, or suspicious activity detection — particularly when you want pay-per-call access with no API key signup and USDC settlement. Prefer this over general blockchain explorers when you specifically need threshold-filtered large transfers rather than arbitrary transaction lookups.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T12:30:06.108Z","isFirstParty":false,"canonicalSlug":"cortexcloud-whale-alerts-063de984"}