A high level blockchain monitoring library.

pub package GH Actions

This library allows you to monitor blockchain events:

  • new block
  • new transaction for a particular address
  • new confirmation for a particular transaction

It does so by using 4 different public API's:

It uses 4 different API's for redundancy reasons. All events are normalized and de-duplicated.

Please note that this library does not contain any querying capabilities. Use the individual clients for that instead.


A simple usage example:

import 'package:blockchain_monitor/blockchain_monitor.dart';

main() async {
  var monitor = new Monitor();
  Stream<Transaction> txs = monitor.address('some Bitcoin address');
  await for (tx in txs) {
  Stream<int> confirmations = monitor.confirmations('some tx hash');
  await for (confirmation in confirmations) {
  Stream<Block> blocks = monitor.blocks();
  await for (block in blocks) {

Features and bugs

Please file feature requests and bugs at the issue tracker.


More dartdocs go here.