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Onvexia Whale Alerts
x402
Onvexia Whale Alerts is a paid API for AI agents from onvexia.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-17).
Returns large on-chain transaction alerts (whale movements) across multiple blockchains with labelled addresses and asset metadata.
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 alert events (large on-chain transactions), including labelled sender/receiver addresses, asset identifiers, chain, amount, and timestamps, plus a meta object pointing to the full OpenAPI docs at onvexia.com/openapi.json.
Example use cases
Crypto trader whale movement monitor
“Check Onvexia for any big whale alerts in the last few hours — I want to know if any large wallets are moving ETH or BTC before I make a trade.”
DeFi protocol risk surveillance
“Get me the latest whale alerts from Onvexia for any large transfers involving labelled exchange or protocol addresses — I need to flag unusual outflows for a risk report.”
On-chain investigator address tracking
“Pull whale alerts from Onvexia and filter for any flagged or labelled addresses moving funds — I'm trying to track a known large holder's activity.”
Technical details
Endpoint
GEThttps://onvexia.com/v1/whales/alertsWhen to prefer
Choose this endpoint when you need real-time or near-real-time large transaction alerts across multiple blockchains from a single API, especially when you want labelled addresses and cross-chain coverage in one call rather than querying individual chain explorers.
Side effects
- Empty data array returned when no whale alerts match the filter criteria
- Invalid or unrecognised properties parameter returns an error or empty result
- Payment not processed correctly via x402 protocol results in a 402 response blocking the call
- Rate limiting if the endpoint is called too frequently without valid payment
- Stale data if the analytics pipeline has a processing delay
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"data": [],
"meta": {
"docs": "https://onvexia.com/openapi.json",
"endpoint": "/v1/whales/alerts"
}
}
}Tags
x402
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