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Onvexia Whale Transactions
x402
Onvexia Whale Transactions is a paid API for AI agents from onvexia.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-19).
Returns large on-chain transactions (whale moves) for a given crypto asset and blockchain, filtered by symbol and limit.
Price / call$0.002
Success—
StatusUnknown
How this service works
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.
Output
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.
Example use cases
DeFi whale alert monitoring
“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.”
Pre-trade sentiment check
“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.”
Cross-chain whale comparison
“Get me the top 10 whale transactions for MATIC on Polygon — I'm trying to see if big holders are accumulating or dumping.”
Technical details
Endpoint
GEThttps://onvexia.com/v1/whales/transactionsWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": [],
"meta": {
"docs": "https://onvexia.com/openapi.json",
"endpoint": "/v1/whales/transactions"
}
}
}Tags
x402
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