{"uid":"cap_wVNWuNvIZu47pvKb248lu","slug":"onchaininja-whale-tracker-multi-chain-f8b7db11","name":"OnChaiNinja Whale Tracker — Multi-Chain","description":"Alpha signals, whale tracking, rug scanning, and MEV protection across Base, Solana, Arbitrum, and more.","url":"https://x402ninnin.vercel.app/api/whale/%7Bchain%7D","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"chain":"base","movements":[]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"2","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":"$2/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"2","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"2","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_qFbT-8HrPW2aFc9DpVgaH","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"2","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns whale wallet movement data and large transaction signals for a specified blockchain (Base, Solana, Arbitrum, etc.)","exampleAgentPrompt":"Show me the latest whale movements on Base — any big wallet transfers or alpha signals I should know about right now.","exampleUseCases":null,"resultDescription":"Returns a JSON object with the queried chain name and an array of whale movement records, which may include large wallet addresses, transaction sizes, and directional signals. Movements array may be empty if no significant activity is detected.","failureModes":["Unsupported chain identifier returns empty or error response","movements array is empty when no whale activity is detected","Invalid chain parameter may result in a 400 or malformed response","Payment not accepted results in 402 Payment Required","Rate limiting or service unavailability returns 5xx error"],"whenToPreferThis":"Use this endpoint when an agent needs to surface large wallet movement data or whale signals on a specific supported chain (Base, Solana, Arbitrum). Prefer this over generic block explorers when you want pre-filtered alpha-signal-style data rather than raw transaction history.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-11T06:44:33.583Z","isFirstParty":false}