user1311: The Bitcoin URI scheme allows for the creation of single-click payment request, using the format
bitcoin:<address>&amount=<amount>

such as
bitcoin:1AzGoMQfrQ7fYaE12dAvEVkke8111rxwCm&amount=0.01

Does the URI scheme also allow multiple payments to multiple destination addresses?

user11253: No, this is not possible according to BIP 0021. The BNF grammar for the bitcoin: URI scheme starts with:

bitcoinurn     = "bitcoin:" bitcoinaddress [ "?" bitcoinparams ]


Since bitcoinparams has no address information, this means that exactly one output address is required.

1311: <p>The <a href="https://bitcoin.stackexchange.com/questions/4987/bitcoin-url-scheme">Bitcoin URI scheme</a> allows for the creation of single-click payment request, using the format</p>

<pre><code>bitcoin:&lt;address&gt;&amp;amount=&lt;amount&gt;
</code></pre>

<p>such as</p>

<pre><code>bitcoin:1AzGoMQfrQ7fYaE12dAvEVkke8111rxwCm&amp;amount=0.01
</code></pre>

<p>Does the URI scheme also allow multiple payments to multiple destination addresses?</p>
 11253: <p>No, this is not possible according to <a href="https://github.com/bitcoin/bips/blob/master/bip-0021.mediawiki" rel="nofollow">BIP 0021</a>. The BNF grammar for the <code>bitcoin:</code> URI scheme starts with:</p>

<blockquote>
<pre><code>bitcoinurn     = "bitcoin:" bitcoinaddress [ "?" bitcoinparams ]
</code></pre>
</blockquote>

<p>Since <code>bitcoinparams</code> has no address information, this means that exactly <em>one</em> output address is required.</p>
