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btcnode.uk Bitcoin Fee Rate Estimates
x402
btcnode.uk Bitcoin Fee Rate Estimates 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 current Bitcoin transaction fee rate estimates (sat/vB) for high, medium, and low priority confirmations from a live Bitcoin Core node
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 JSON object with integer sat/vB fee rates for high, medium, and low priority confirmation tiers, a success flag, and a timestamp indicating when the estimates were last updated (e.g. {"high": 15, "medium": 8, "low": 2, "unit": "sat/vB", "success": true, "updated_at": "2026-05-25T04:30:04.334Z"})
Example use cases
Optimize transaction fees for wallet
“Check the current Bitcoin network fees for me — I want to know the sat/vB rates for fast, standard, and slow confirmation so I can pick the right priority when I send my transaction without overpaying.”
Monitor mempool congestion in real-time
“How congested is the Bitcoin network right now? Give me the latest fee estimates from the node so I can tell if I should wait or send my transaction immediately.”
Set dynamic fees for payment processor
“Pull the current high, medium, and low priority Bitcoin fee rates from your node — I need fresh sat/vB estimates to automatically adjust fees for my customers' outgoing transactions.”
Technical details
Endpoint
GEThttps://btcnode.uk/api/feesWhen to prefer
Use this endpoint when you need real-time Bitcoin fee rate estimates sourced directly from a Bitcoin Core full node rather than third-party aggregators. Ideal for wallets, payment processors, or agents that need to dynamically set transaction fees without relying on centralized fee APIs like mempool.space or blockchain.info.
Side effects
- Node temporarily unreachable — may return error or stale data
- All three fee tiers return the same low value during low-congestion periods (not an error, just current state)
- updated_at timestamp significantly behind wall clock if node is syncing
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
{
"low": 2,
"high": 4,
"unit": "sat/vB",
"medium": 3,
"success": true,
"updated_at": "2026-06-03T04:32:37.501Z"
}Schema · Response
{
"type": "json",
"example": {
"low": 5,
"high": 42,
"unit": "sat/vB",
"medium": 18
}
}Tags
x402
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