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BTC Node API — Bitcoin Transaction Trace
x402
BTC Node API — Bitcoin Transaction Trace 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).
Traces a Bitcoin transaction by walking inputs and outputs through 2 hops to follow the flow of funds across the blockchain.
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
Returns a JSON object containing the transaction ID, a list of inputs (sources of funds), a list of outputs (destinations of funds), total value in, and total value out — traced up to 2 hops for fund-flow analysis.
Example use cases
Investigate suspicious whale fund movements
“I noticed a large Bitcoin transaction from a whale address. Can you trace transaction 7c4e2a9f1b through multiple hops and show me all the intermediate addresses and amounts? I want to understand where these funds originated and where they're being moved to.”
Track Bitcoin mixing service activity patterns
“We think someone used a mixing service to obscure their transaction trail. Can you trace this transaction hash 9d5c3a1e7f and walk through all the inputs and outputs for 2 hops? I need to see the full fund flow to understand if there's a pattern of obfuscation.”
Analyze exchange deposit source origins
“A deposit just came into our exchange from a transaction we don't recognize. Can you trace the fund flow for transaction 2b8f6e4d3a going back through the chain? I want to see where those Bitcoin originally came from before they reached us.”
Technical details
Endpoint
GEThttps://btcnode.uk/api/trace/%7Btxid%7DWhen to prefer
Use this endpoint when you need to do chain analysis or transaction forensics on a specific Bitcoin transaction — particularly when you want to trace fund flows 2 hops deep rather than just seeing direct inputs/outputs. Prefer this over generic block explorers when you need structured, machine-readable data for automated analysis.
Side effects
- Invalid or malformed txid returns an error
- Transaction not found on the Bitcoin network
- Unconfirmed or very recent transactions may not be fully traceable
- Network timeout if the Bitcoin node is temporarily unavailable
- Payment failure if x402 micropayment on Base is not completed
Output
Schema · Response
{
"type": "json",
"example": {
"txid": "0000...",
"inputs": [],
"outputs": [],
"total_in": 10,
"total_out": 10
}
}Tags
x402
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