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FastPath API - Bitcoin Block Height
x402
FastPath API - Bitcoin Block Height is a paid API for AI agents from api.nativebtc.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns the current Bitcoin blockchain block height as both a hex string and decimal integer
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 current Bitcoin block height as a hex string (e.g. '0xe9bb8'), the same height as a decimal integer (e.g. 957400), and a boolean success flag indicating whether the request succeeded.
Example use cases
Monitor Bitcoin chain tip for sync
“Check the current Bitcoin block height so I can tell if my node is fully synced with the network.”
Cross-chain block tracking dashboard
“Pull the latest Bitcoin block number for my crypto dashboard — I need the current height in hex and decimal so I can display it alongside Ethereum block data.”
Trigger alert on new Bitcoin block
“Get the current Bitcoin block height so I can compare it to the last one I recorded and alert me if a new block has been mined.”
Technical details
Endpoint
GEThttps://api.nativebtc.org/v1/block-heightWhen to prefer
Choose this endpoint when you need the current Bitcoin block height quickly and cheaply ($0.001 USDC per call), especially if your stack is already Ethereum/JSON-RPC-oriented and you want Bitcoin data in a familiar format. Prefer it over raw Bitcoin node RPC calls when you lack a full Bitcoin node or want a pay-per-use model without infrastructure overhead.
Side effects
- Payment not provided or invalid x402 payment header — returns 402 Payment Required
- Network or node unavailability — may return 503 or timeout
- Malformed request — returns 400 Bad Request
- Upstream Bitcoin node sync lag — height may be slightly behind the true tip
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"hex": "0xe9bb8",
"height": 957400,
"success": true
}
}Tags
x402
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