1.0Fast2SMShttps://www.fast2sms.com/helpFast2SMShttps://www.fast2sms.com/help/author/poorvi/rich600338<blockquote class="wp-embedded-content" data-secret="RM4Vm6pAnP"><a href="https://www.fast2sms.com/help/free-whatsapp-business-api/">Free Whatsapp Business API (WABA)</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.fast2sms.com/help/free-whatsapp-business-api/embed/#?secret=RM4Vm6pAnP" width="600" height="338" title="“Free Whatsapp Business API (WABA)” — Fast2SMS" data-secret="RM4Vm6pAnP" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); /* ]]> */ </script> Redefine your customer communication using Free Whatsapp Business API (WABA) service of Fast2SMS. We, at Fast2SMS enable businesses to scale their brands and automate interactions using our Free Whatsapp Business API or WABA. In this post, we will discuss what is Whatsapp Business API, and how to maximise conversions using the services of Fast2SMS. What is […]https://www.fast2sms.com/help/wp-content/uploads/2026/01/Signup-test-WhatsApp-API-for-FREE.png