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BTC Node API — Mempool Pending Transactions
x402
BTC Node API — Mempool Pending Transactions is a paid API for AI agents from api.relai.fi, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Returns the list of pending (unconfirmed) transactions currently in the Bitcoin mempool
Price / call$0.005
Success—
StatusUnknown
How this service works
Mempool pending transactions
Output
A list or collection of pending Bitcoin transactions currently sitting in the mempool awaiting confirmation, likely including transaction IDs, fees, sizes, and other metadata about unconfirmed transactions on the Bitcoin network.
Example use cases
Example prompt
“Can you pull the current list of pending unconfirmed Bitcoin transactions from the mempool right now?”
Technical details
Endpoint
GEThttps://api.relai.fi/relay/1780781322365/api/mempoolWhen to prefer
Use this endpoint when you need real-time access to the Bitcoin mempool — specifically the set of unconfirmed transactions — for monitoring network congestion, fee estimation context, transaction tracking, or blockchain analytics. Prefer this over block-explorer scraping when you need a direct node-level view of pending transactions.
Side effects
- Node connectivity issues may return 503 or empty response
- Rate limiting may return 429 if called too frequently
- Payment of 0.005 USDC required via x402 protocol; missing payment returns 402
- Bitcoin node may be syncing, returning stale or incomplete mempool data
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
{
"success": true,
"mempool_mb": "21.72",
"pending_tx": 88165
}Tags
x402
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