Get raw transaction hex.

GET

https://kmdbook.nownodes.io/api/rawtx/{txid}

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

ApiKeyAuthApiKeyAuth

X-API-Key string

NOWNodes API key passed in the api-key header.

Unversioned public endpoint exposed by Blockbook for raw transaction data.

Load estimate: Medium; payload size grows with raw transaction size.

live-verified behavior:

The deployed build does not route this path: requests fall through to the /api/ index handler and return HTTP 200 with the status object (live capture, valid txid). Use /api/v2/tx-specific/ {txid} and read its hex field for raw transaction data on KMD.

Parameters

txidstringrequiredpath

Transaction id/hash.

Response

200OK

Raw transaction hex as a JSON string.

401Unauthorized

Missing or invalid API key (plain text).

Get raw transaction hex.

curl -X GET 'https://kmdbook.nownodes.io/api/rawtx/{txid}'

const response = await fetch('https://kmdbook.nownodes.io/api/rawtx/{txid}', {
  method: 'GET',
});

const data = await response.json();

require 'net/http'
require 'json'

uri = URI('https://kmdbook.nownodes.io/api/rawtx/{txid}')
request = Net::HTTP::Get.new(uri)

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }
data = JSON.parse(response.body)

import requests

response = requests.get('https://kmdbook.nownodes.io/api/rawtx/{txid}')
data = response.json()

const response = await fetch('https://kmdbook.nownodes.io/api/rawtx/{txid}', {
  method: 'GET',
});

const data = await response.json();

const endpoint = "https://kmdbook.nownodes.io/api/rawtx/{txid}";
const apiKey = "YOUR_API_KEY";

async function nownodesRequest(payload) {
  const response = await fetch(endpoint, {
    method: "GET",
    headers: {
      "Content-Type": "application/json",
      "api-key": apiKey,
    },
    body: JSON.stringify(payload),
  });

  return response.json();
}

const result = await nownodesRequest({});
console.log(result);

const response = await fetch('https://kmdbook.nownodes.io/api/rawtx/{txid}', {
  method: 'GET',
});

const data = await response.json();

import requests

response = requests.get('https://kmdbook.nownodes.io/api/rawtx/{txid}')
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://kmdbook.nownodes.io/api/rawtx/{txid}')
request = Net::HTTP::Get.new(uri)

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }
data = JSON.parse(response.body)

"0400008085202f890b2890d1aab1b13bb57d0fedf7b1201e078c5109f0610b49b67d0e21f95b040015000000006b4830..."

{
  "blockbook": {
    "coin": "Komodo",
    "host": "267994aa4e7a",
    "version": "devel",
    "gitCommit": "1d8497b",
    "buildTime": "2022-11-01T12:31:35+00:00",
    "syncMode": true,
    "initialSync": false,
    "inSync": true,
    "bestHeight": 5090571,
    "lastBlockTime": "2026-09-05T19:38:42.278300899Z",
    "inSyncMempool": true,
    "lastMempoolTime": "2026-09-05T19:39:58.770225346Z",
    "mempoolSize": 0,
    "decimals": 8,
    "dbSize": 46210933032,
    "about": "Blockbook - blockchain indexer for Trezor wallet https://trezor.io/. Do not use for any other purpose."
  },
  "backend": {
    "chain": "main",
    "blocks": 5090571,
    "headers": 5090571,
    "bestBlockHash": "000000385fe73f359d1a95f3c85deb925d9db9f781eb0bcd8d66977a84b4aed6",
    "difficulty": "1808088.97486791",
    "version": "90252",
    "subversion": "/MagicBean:0.9.2-2(komodo)/",
    "protocolVersion": "170014"
  }
}

Unknown API_key