Unified Bitcoin transaction analysis
Unified Bitcoin transaction analysis: fee verdict, mempool state, RBF bump plan, and Core v31 template check.
Answeringour last check, 2026-10-19
1 of 1checks answered this week
809 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.nativebtc.org/v1/bitcoin/insight
| Category | Everything else |
|---|---|
| Provider host | api.nativebtc.org |
| Networks | eip155:137, eip155:42161, eip155:480, eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-19 | valid payment request | 402 | $0.01 | 809 ms |
Example input (from the provider)
{
"body": {
"action": "analyze",
"targetBlocks": 6,
"txid": "81c97a6c5b98a1019095de132727cda868694fb5d92534ebb07e475619e38325"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"action": {
"description": "Analyze the transaction or relay a user-signed replacement transaction.",
"enum": [
"analyze",
"broadcast_signed_replacement"
],
"type": "string"
},
"address": {
"description": "Bitcoin address such as bc1q..., bc1p..., 1..., or 3....",
"type": "string"
},
"signedReplacementHex": {
"description": "User-signed raw Bitcoin replacement transaction hex. FastPath relays only; it never signs or holds funds.",
"type": "string"
},
"targetBlocks": {
"description": "Desired confirmation target in blocks.",
"minimum": 1,
"type": "number"
},
"txid": {
"description": "Bitcoin transaction ID as 64 lowercase or uppercase hex characters.",
"pattern": "^[0-9a-fA-F]{64}$",
"type": "string"
}
},
"required": [
"txid"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}