FastPath Bitcoin API.

POST https://api.nativebtc.org/v1/bitcoin/insight ↗

Unified Bitcoin transaction analysis: fee verdict, mempool state, RBF bump plan, and Core v31 template check.

Eligibility: unprobeable
Failures: 0
Last quote: —
Last probe: —

Payment requirements / accepts[] 4 options

State	Network	Scheme	Atomic amount	Asset	payTo / untrusted
active	eip155:8453	exact	10000	0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913	0x0300E73759B357ceeE5A248d1801eCb8abf7A1d4
active	eip155:137	exact	10000	0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359	0x0300E73759B357ceeE5A248d1801eCb8abf7A1d4
active	eip155:42161	exact	10000	0xaf88d065e77c8cC2239327C5EDb3A432268e5831	0x0300E73759B357ceeE5A248d1801eCb8abf7A1d4
active	eip155:480	exact	10000	0x79A02482A880bCE3F13e09Da970dC34db4CD24d1	0x0300E73759B357ceeE5A248d1801eCb8abf7A1d4

All advertised payment options are stored. Base (`eip155:8453`) is the operational network for ranking and canaries; non-Base options remain visible for transparency.

Probe evidence 0 recent

No probe attempts recorded yet. Coverage runs prioritize never-probed endpoints.

Machine contract

Schemas.

InputJSON

{
  "body": {
    "action": "analyze",
    "targetBlocks": 6,
    "txid": "81c97a6c5b98a1019095de132727cda868694fb5d92534ebb07e475619e38325"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
}

OutputJSON

{
  "example": {
    "bump": {
      "additionalFeeSats": 110,
      "available": true,
      "method": "rbf_signed_replacement",
      "signsOrCustodiesFunds": false
    },
    "success": true,
    "summary": "Effective fee rate 2 sat/vB is at or above the 1 sat/vB target.",
    "templateCheck": {
      "inBaselineTemplate": false,
      "inOptimizedTemplate": false,
      "mode": "live_cached",
      "source": "core_v31_optimizer_cache"
    },
    "verdict": "healthy_for_target"
  },
  "type": "json"
}