<p>Here are a couple strategies I've used:</p>

<p><strong>Run a bitcoin node:</strong> bitcoind has a <code>-blocknotify</code> flag you can run that will allow you to execute a command with each new block. You can then use JSON-RPC to query your node for all transactions/addresses in the block. It will take a bit of work to set this up, but it will work</p>

<p><strong>Use a service:</strong> I've used <a href="https://www.blockcypher.com/" rel="nofollow noreferrer">https://www.blockcypher.com/</a> which works well, but it can be pricey. <a href="https://blockchainwebhooks.com" rel="nofollow noreferrer">https://blockchainwebhooks.com</a> is much more affordable, but not as many features.</p>

<p>Hope this helps! Let me know if you have any questions</p>

CC BY-SA 4.0
2018-07-10T00:09:43.080Z
2018-08-03T17:52:08.460Z
2018-08-03T17:52:08.460Z
sizzlecookie
<p>If you want an android app to watch the balance of addresses, you can use Sentinal.  It's created by the Samourai wallet guys, it's awesome.</p>

CC BY-SA 4.0
2018-08-03T20:52:17.957Z
2018-08-03T20:52:17.957Z
ooomid
<p>I need to watch many wallet addresses for new bitcoin transactions as they enter new blocks. I also need this transaction data to make updates on my end</p>

<p>What are my options?</p>

<bitcoind>
How to watch lots of wallet addresses for new bitcoin transactions?
TShaw123
# How to watch lots of wallet addresses for new bitcoin transactions?

(Asked by: username_0 on 2018-07-10)

I need to watch many wallet addresses for new bitcoin transactions as they enter new blocks. I also need this transaction data to make updates on my end

What are my options?

**Tags:** bitcoind


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## 2 answers

### Answer by username_1 on 2018-07-10. Score: 0 | Accepted answer

Here are a couple strategies I've used:

**Run a bitcoin node:** bitcoind has a `-blocknotify` flag you can run that will allow you to execute a command with each new block. You can then use JSON-RPC to query your node for all transactions/addresses in the block. It will take a bit of work to set this up, but it will work

**Use a service:** I've used <https://www.blockcypher.com/> which works well, but it can be pricey. <https://blockchainwebhooks.com> is much more affordable, but not as many features.

Hope this helps! Let me know if you have any questions


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### Answer by username_2 on 2018-08-03. Score: 0

If you want an android app to watch the balance of addresses, you can use Sentinal. It's created by the Samourai wallet guys, it's awesome.


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