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NativeBTC Bitcoin Transaction Insight
x402
NativeBTC Bitcoin Transaction Insight is a paid API for AI agents from api.nativebtc.org, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Analyzes a Bitcoin transaction to produce a fee verdict, current mempool state, RBF bump plan, and Bitcoin Core v31 block template compatibility check.
Price / call$0.01
Success—
StatusUnknown
How this service works
Unified Bitcoin transaction analysis: fee verdict, mempool state, RBF bump plan, and Core v31 template check.
Output
Returns a unified insight report including: fee adequacy verdict (overpaying/underpaying/appropriate), current mempool congestion state, an actionable RBF fee-bump plan with suggested replacement fee rate, and a Bitcoin Core v31 block template compatibility assessment for the given transaction.
Example use cases
Example prompt
“Analyze Bitcoin transaction a3f8c1d2e4b56789abcdef0123456789abcdef0123456789abcdef0123456789ab — I want a fee verdict, the current mempool state, an RBF bump plan targeting confirmation within 3 blocks, and a Bitcoin Core v31 template compatibility check.”
Technical details
Endpoint
POSThttps://api.nativebtc.org/v1/bitcoin/insightWhen to prefer
Use this endpoint when you need a single unified call to diagnose a Bitcoin transaction — combining fee analysis, mempool context, RBF bump planning, and Core v31 template checking in one response. Prefer over manual mempool explorers or separate fee-estimation APIs when you need structured, actionable output and RBF replacement guidance in one shot.
Side effects
- Invalid txid format (not 64 hex characters) returns a validation error
- Transaction not found in mempool or blockchain returns not-found error
- Invalid action enum value returns bad request
- signedReplacementHex malformed or invalid returns relay error
- targetBlocks below minimum of 1 returns validation error
- Payment not received or x402 flow incomplete returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| txid | string | Bitcoin transaction ID as 64 lowercase or uppercase hex characters. |
| action | string | Analyze the transaction or relay a user-signed replacement transaction. |
| address | string | Bitcoin address such as bc1q..., bc1p..., 1..., or 3.... |
| targetBlocks | number | Desired confirmation target in blocks. |
| signedReplacementHex | string | User-signed raw Bitcoin replacement transaction hex. FastPath relays only; it never signs or holds funds. |
Output
Schema · Response
{
"type": "json",
"example": {
"bump": {
"method": "rbf_signed_replacement",
"available": true,
"additionalFeeSats": 110,
"signsOrCustodiesFunds": false
},
"success": true,
"summary": "Effective fee rate 2 sat/vB is at or above the 1 sat/vB target.",
"verdict": "healthy_for_target",
"templateCheck": {
"mode": "live_cached",
"source": "core_v31_optimizer_cache",
"inBaselineTemplate": false,
"inOptimizedTemplate": false
}
}
}Tags
x402
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