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FastPath Bitcoin Transaction Lookup (Ethereum-style RPC)
x402
FastPath Bitcoin Transaction Lookup (Ethereum-style RPC) is a paid API for AI agents from api.nativebtc.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Fetches Bitcoin transaction details — fee, vsize, and fee rate — via a REST endpoint styled for Ethereum JSON-RPC consumers.
Price / call$0.001
Success—
StatusUnknown
How this service works
FastPath translates Ethereum-style JSON-RPC requests into Bitcoin data, fee intelligence, mempool insight, and Core v31 package signals. Paid by x402.
Output
Returns a JSON object with the transaction's fee in satoshis, txid, virtual size in vbytes, fee rate in sat/vb, and a boolean success flag.
Example use cases
Example prompt
“Can you pull up the fee details for Bitcoin transaction 81c97a6c5b98a1019095de132727cda868694fb5d92534ebb07e475619e38325 — I want to see the fee in satoshis, the vsize, and the fee rate in sat/vb?”
Technical details
Endpoint
GEThttps://api.nativebtc.org/v1/tx/%7Btxid%7DWhen to prefer
Choose this endpoint when you need fast, structured Bitcoin transaction fee and size data via a familiar REST/JSON interface, especially if your tooling is already oriented around Ethereum-style JSON-RPC conventions. Ideal for fee analysis, vsize inspection, and quick transaction lookups without running your own Bitcoin node.
Side effects
- Invalid or malformed txid returns an error or success:false
- Transaction not found in the node's index returns a not-found error
- Network timeout or upstream Bitcoin node unavailability causes request failure
- Payment not processed (x402 payment required) results in 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"fee": 220,
"txid": "81c97a6c5b98a1019095de132727cda868694fb5d92534ebb07e475619e38325",
"vsize": 110,
"success": true,
"feeRateSatVb": 2
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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