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x402-gateway Whale Alerts
x402
x402-gateway Whale Alerts is a paid API for AI agents from x402.freeq.one, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-28).
Fetches large on-chain cryptocurrency transfer alerts (whale movements) across blockchain networks, paid per-call via x402 on Base.
Price / call$0.002
Success—
StatusUnknown
How this service works
Whale Alerts Scanner: Scan recent blocks for large ETH transfers involving an address. Filter by direction (in/out/both) and threshold. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/whale_alerts.
Output
Returns a list of large on-chain transfer events including transaction hashes, sender and receiver wallet addresses, token type, amount transferred, USD value, blockchain network, and timestamp. Useful for identifying market-moving wallet activity.
Example use cases
Real-time whale movement monitoring
“Show me any large ETH transfers over $500k that happened in the last 30 minutes so I can gauge market sentiment.”
Token-specific whale tracking for traders
“Are there any big USDC whale movements on-chain right now? I want to know if someone is moving tens of millions before I make a trade.”
DeFi bot whale signal detection
“Pull the latest whale alerts for BTC and ETH — anything above $2 million — so my trading bot can factor large transfers into its strategy.”
Technical details
Endpoint
POSThttps://x402.freeq.one/tools/whale_alerts?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time or near-real-time large on-chain transfer alerts and want to pay per-call with no subscription, using USDC on Base via x402. Prefer over scraping block explorers or subscribing to expensive whale-tracking SaaS when usage is intermittent.
Side effects
- Payment not received or x402 payment header missing — returns 402 Payment Required
- No whale alerts found for specified parameters — returns empty result set
- Invalid token symbol or unsupported chain — returns error or empty response
- Network timeout if upstream blockchain data provider is slow
- Rate limiting if too many calls in a short window
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| address | string | Ethereum address to monitor |
| direction | string | in, out, or both (default both) |
| min_value_eth | number | Minimum ETH value threshold |
Output
Schema · Response
{
"type": "json",
"example": {
"content": [],
"isError": false,
"structuredContent": {}
}
}Tags
x402
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