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Bitcoin Whale Mempool Transactions
x402
Bitcoin Whale Mempool Transactions is a paid API for AI agents from btcnode.uk, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Returns the last 50 unconfirmed Bitcoin mempool transactions over 100 BTC, enabling real-time tracking of large BTC transfers.
Price / call$0.005
Success—
StatusUnknown
How this service works
Bitcoin blockchain data, address portfolio, transaction tracing, fee forecasting, whale monitoring, SEC EDGAR filings, URL scraping, AI summarization, and Reddit API via x402 micropayments on Base.
Output
A list of the last 50 unconfirmed Bitcoin mempool transactions each exceeding 100 BTC, including transaction IDs, amounts, sender/recipient addresses, and timestamps for real-time whale activity monitoring.
Example use cases
Example prompt
“What large Bitcoin transactions are currently sitting unconfirmed in the mempool — show me the recent whale moves over 100 BTC.”
Technical details
Endpoint
GEThttps://btcnode.uk/api/whalesWhen to prefer
Use this endpoint when you need real-time visibility into large Bitcoin transfers that are pending confirmation — ideal for whale watching, on-chain analytics, market sentiment signals, or detecting large OTC-style movements. Prefer over blockchain explorers when you need fresh mempool data (not just confirmed transactions) and want cost-efficient programmatic access.
Side effects
- Node connectivity issues may return empty or stale mempool data
- If mempool is quiet, fewer than 50 transactions over 100 BTC may be available
- Network congestion may cause delayed response
- HTTP 402 if payment not included or insufficient
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
{
"count": 1,
"min_btc": 100,
"success": true,
"transactions": [
{
"time": "2026-06-10T04:27:33.000Z",
"txid": "b40333260967147b1cc580947ef911e650235aa8cb3fcc3e6d1c0fa14ef27bf7",
"vsize": 203,
"fee_sats": 244,
"addresses": [
"bc1qnx30tcf0g2l3f7yy9w0q34069tj0edmygacw8j",
"bc1qwtkfjhk82kktyfj0tem6hm5w2qtchsjuuulr40",
"bc1qjr95mqgmwhp42f479d530hdd04teyf0chgnsug"
],
"value_btc": 363.20988815000004
}
]
}Schema · Response
{
"type": "json",
"example": {
"count": 5,
"transactions": [
{
"txid": "000...",
"fee_sats": 2000,
"value_btc": 150
}
]
}
}Tags
x402
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