user37390: A few weeks ago, I would retrieve unconfirmed utxos from Blockchain.info doing API call https://blockchain.info/unspent?active=$address. 
That enabled me to successfully make a micropayment channel (MPC) for instance. 
Since last week however, an API call for an address with unconfirmed utxos only yields:
{
    "notice" :"Some funds are pending confirmation and cannot be spent yet (Value 0.00412834 BTC)",
    "unspent_outputs":[

    ]
}

(I know it s just a matter of time before these utxos are confirmed and the issue is sorted but ... )
which implies my MPC will not work anymore. 
Why such a change? 
or have I gotten something wrong?
I am considering this address. We can see the unconfirmed balance is not null, but the API returns no (unconfirmed) UTXO. 
Thank you

user23123: This is most likely something on blockchain.info's end. You have a very similar call available via API to blockcypher.com here:
https://dev.blockcypher.com/#address-endpoint
unspentOnly=true will get you what you want.

37390: <p>A few weeks ago, I would retrieve <strong>unconfirmed</strong> utxos from Blockchain.info doing API call <a href="https://blockchain.info/unspent?active=" rel="nofollow">https://blockchain.info/unspent?active=</a>$address. 
That enabled me to successfully make a micropayment channel (MPC) for instance. </p>

<p>Since last week however, an API call for an address with unconfirmed utxos only yields:</p>

<pre><code>{
    "notice" :"Some funds are pending confirmation and cannot be spent yet (Value 0.00412834 BTC)",
    "unspent_outputs":[

    ]
}
</code></pre>

<p>(I know it s just a matter of time before these utxos are confirmed and the issue is sorted but ... )</p>

<p>which implies my MPC will not work anymore. </p>

<p><strong>Why such a change?</strong> 
or <strong>have I gotten something wrong?</strong></p>

<p>I am considering <a href="https://blockchain.info/address/19ScG5PughZ3wNVRv1PtWsfSH7NDG4Jg5M" rel="nofollow">this</a> address. <strong>We can see the unconfirmed balance is not null, but the API returns no (unconfirmed) UTXO.</strong> </p>

<p>Thank you</p>
 23123: <p>This is most likely something on blockchain.info's end. You have a very similar call available via API to blockcypher.com here:</p>

<p><a href="https://dev.blockcypher.com/#address-endpoint" rel="nofollow">https://dev.blockcypher.com/#address-endpoint</a></p>

<p>unspentOnly=true will get you what you want.</p>
