i am going to lunch a new service for merchants to use my service API to receive payments directly in their wallets through xpub key , now i have installed bitcoin core is this possible with bitcoin core or i need as well electrum server

    //replace with your BIP32 extended public key
    $xpub = "xpub661MyMwAqRbcGTFHLp4c7j2hByE3qAZdN37FqJHTAmSPE2vfL4GAQ4mZvGZz4bVzpfdwoeoEBXWV5g2vWwP";
    $url = "https://api.smartbit.com.au/v1/blockchain/address/".$xpub;
    $fgc = json_decode(file_get_contents($url), true);
    $next = $fgc["address"]["extkey_next_receiving_address"];

    <!DOCTYPE html>
    <script type="text/javascript" src="js/jquery.min.js"></script>
    <script type="text/javascript" src="js/qrcode.js"></script>
    <div id="qrcode"></div>
      <script type="text/javascript">
      new QRCode(document.getElementById("qrcode"), "<?php echo $next; ?>");
    <br><?php echo $next;?><br>

  • Is that the entire xpub? It seems too short. Also, I can't get it to validate. – Nick ODell Mar 15 '17 at 16:16
  • so here you are not for answer you only want to test xpub ? , i asked how to do this on bitcoin core without any api , so what ???? – Adeel Nawaz Mar 16 '17 at 7:17
  • 1
    I think the reason that you're having trouble is that the xpub isn't valid. That means that you'll have trouble no matter what library you use. – Nick ODell Mar 16 '17 at 16:20

There are php libraries that you can use. For example the ones in my plugin bitcoin address in the includes/libs directory. These libraries were originally created by the authors of the bitcoin payments for woocommerce plugin.

There is also the bitwasp php library but it is a lot larger and does more things than merely deriving addresses from xpubs.

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