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Bitcoin Whale Transaction Feed (Carbon Cashmere)
x402
Bitcoin Whale Transaction Feed (Carbon Cashmere) is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Streams large Bitcoin transactions (>10 BTC by default) enriched with fee-rate, RBF flag, and ancestor-count metadata for on-chain whale activity monitoring.
Price / call$0.05
Success—
StatusUnknown
How this service works
Bitcoin whale transaction feed (>10 BTC default) with fee-rate, RBF flag, ancestor-count enrichment. ⚠️ output_btc includes change-outputs — activity proxy, not net transfer.
Output
A feed of large Bitcoin transactions (defaulting to >10 BTC threshold) enriched with fee-rate in sat/vB, an RBF (replace-by-fee) boolean flag, and ancestor-count per transaction. Note: output_btc includes change outputs and reflects activity volume, not net transfer amount.
Example use cases
Example prompt
“Pull the latest Bitcoin whale transaction feed and show me any transactions over 10 BTC, including the fee-rate, whether they have RBF enabled, and how many ancestor transactions they have.”
Technical details
Endpoint
GEThttps://api.carbon-cashmere.de/v1/btc-derivatives/whale-streamWhen to prefer
Use this endpoint when you need real-time Bitcoin whale transaction intelligence from a self-hosted node with enriched metadata (fee-rate, RBF, ancestor-count) rather than a generic blockchain explorer API. Ideal for agents monitoring large on-chain movements, detecting mempool congestion signals, or flagging high-fee replacement transactions.
Side effects
- No transactions returned if mempool is quiet or threshold is too high
- Truncated response for very high-volume periods (response size limit)
- Stale data if node is temporarily out of sync
- HTTP 402 if payment header is missing or insufficient (x402 protocol)
- Rate limiting or timeout under heavy load
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
{
"_truncated": true,
"_originalSize": 23662
}Schema · Response
{
"type": "json",
"example": {
"count": 4015,
"min_btc": 10,
"total_btc": 81243.7,
"since_hours": 24,
"transactions": [
{
"btc": 87.5,
"rbf": false,
"txid": "5c13094485f0...",
"ancestor_count": 1,
"fee_rate_sat_vb": 3.2
}
]
}
}Tags
x402
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