{"uid":"cap_BnwUYq5vVOt14KAjArijX","slug":"onvexia-whale-transactions-ff8c7270","name":"Onvexia Whale Transactions","description":"Thousands of assets across ten chains, half a million analysed documents, labelled addresses and supply-age history reaching back to 2008 — fused into one reading per asset. REST, SQL, GraphQL and MCP.","url":"https://onvexia.com/v1/whales/transactions","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"type":"object","properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"limit":{"type":"string"},"symbol":{"type":"string"},"blockchain":{"type":"string"}}}},"additionalProperties":false},"output":{"type":"object","properties":{"example":{"type":"object","properties":{"data":{"description":"The result — an array or object depending on the endpoint. An empty array means no rows in range, never that the metric is unsupported."},"meta":{"type":"object","description":"Coverage and provenance: what was measured, and what is not held. A null label means no label is held, never that the subject is safe."}}}}}}},"responseSchema":{"type":"json","example":{"data":[],"meta":{"docs":"https://onvexia.com/openapi.json","endpoint":"/v1/whales/transactions"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_vERj8QotUHEQLxOmzRFi1","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","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 transactions (whale moves) for a given crypto asset and blockchain, filtered by symbol and limit.","exampleAgentPrompt":"Can you pull the latest whale transactions for ETH on Ethereum — show me the top 20 largest moves?","exampleUseCases":[{"title":"DeFi whale alert monitoring","prompt":"Show me the 50 largest on-chain transactions for SOL on Solana right now — I want to see if any whales are moving big bags."},{"title":"Pre-trade sentiment check","prompt":"Before I buy, can you check if there are any major whale transactions happening for BTC on Bitcoin in the last period? Pull up to 30 results."},{"title":"Cross-chain whale comparison","prompt":"Get me the top 10 whale transactions for MATIC on Polygon — I'm trying to see if big holders are accumulating or dumping."}],"resultDescription":"Returns a JSON object with a 'data' array of whale transaction records for the specified asset and blockchain, plus a 'meta' object containing coverage details, provenance notes, and a link to the full OpenAPI documentation. An empty data array means no whale transactions were found in range, not that the metric is unsupported.","failureModes":["Empty data array returned when no whale transactions meet the threshold for the given symbol/blockchain combination","Invalid or unsupported blockchain name results in an empty or error response","Missing required 'symbol' or 'blockchain' parameters may return an error or empty result","Rate limiting or payment failure (x402) if the USDC micro-payment is not processed","Unsupported asset symbol returns empty data rather than an explicit error"],"whenToPreferThis":"Choose this endpoint when you need real-time or recent large on-chain transaction data (whale moves) for a specific crypto asset across one of Onvexia's supported chains. It is ideal for trading signal generation, market surveillance, or DeFi risk monitoring where large holder behavior is a key input. Prefer this over generic block explorers when you need pre-filtered whale-level data without having to set your own thresholds.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-19T13:09:21.446Z","isFirstParty":false}