user20835: How do I get the balance of an arbitrary address using Bitcoin RPC calls? From the RPC calls I can see you are required to have the private key or an account to use the RPC.
For illustrations sake, if you could demo querying this address:
1HB5XMLmzFVj8ALj6mfBsbifRoD4miY36v
That would be great. Here is the actual balance for this address. 

user-1: This has already been answered here:

Calculating address balance
How to get an address's balance with the bitcoin client?

The pull request for this feature (support for watch-only addresses) can be found at: https://github.com/bitcoin/bitcoin/pull/4045

20835: <p>How do I get the balance of an arbitrary address using Bitcoin RPC calls? From the RPC calls I can see you are required to have the private key or an <code>account</code> to use the RPC.</p>

<p>For illustrations sake, if you could demo querying this address:</p>

<p><code>1HB5XMLmzFVj8ALj6mfBsbifRoD4miY36v</code></p>

<p>That would be great. <a href="https://blockchain.info/address/1HB5XMLmzFVj8ALj6mfBsbifRoD4miY36v" rel="nofollow">Here</a> is the actual balance for this address. </p>
 -1: <p>This has already been answered here:</p>

<ul>
<li><a href="https://bitcoin.stackexchange.com/questions/10895/calculating-address-balance">Calculating address balance</a></li>
<li><a href="https://bitcoin.stackexchange.com/questions/10090/how-to-get-an-addresss-balance-with-the-bitcoin-client">How to get an address&#39;s balance with the bitcoin client?</a></li>
</ul>

<p>The pull request for this feature (support for watch-only addresses) can be found at: <a href="https://github.com/bitcoin/bitcoin/pull/4045" rel="nofollow noreferrer">https://github.com/bitcoin/bitcoin/pull/4045</a></p>
