Bitcoin transaction normalization API

Normalize a Bitcoin txid into inputs/outputs, total value, fee, fee-rate (sat/vB), confirmations, and block details via the keyless mempool.space API. The value-add is the derived metrics: fee-rate computed from fee/vsize and confirmations derived against the live chain tip, plus a clean input/output list. Answers 'details of this Bitcoin transaction', 'fee of this BTC tx', 'how many confirmations does this txid have', 'what is the fee rate of this transaction'.

Price$0.01per request

MethodPOST

Route/v1/osint/bitcoin-tx

StatusLive

MIME typeapplication/json

Rate limit60/minute

Cache3600s public

osintbitcoinbtctransactiontxidfeeblockchainmempool

API URLhttps://x402.hexl.dev/v1/osint/bitcoin-tx

Integration docs

Example request

{
  "txid": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"
}

Example response

{
  "txid": "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b",
  "confirmed": true,
  "confirmations": 6,
  "blockHeight": 800000,
  "feeSats": 2000,
  "feeBtc": 0.00002,
  "feeRateSatPerVb": 10,
  "vsize": 200,
  "totalInputSats": 1000000,
  "totalOutputSats": 998000,
  "inputCount": 1,
  "outputCount": 1
}

Input schema

{
  "type": "object",
  "required": [
    "txid"
  ],
  "properties": {
    "txid": {
      "type": "string",
      "examples": [
        "4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}