Developers
Build on the inbox your customers already use
Connect your store, CRM or app to Wetarseel and send WhatsApp messages, templates and media from your own code.
Send from your systems
Order updates, invoices and reminders with one authenticated request.
Keep your CRM in sync
Push leads from website forms and checkouts, with tags and lists.
Sent by your integrationHi! Has my order shipped yet? 10:02
Yes! Order #1042 left our warehouse this morning and arrives Thursday. 10:02
Perfect, thank you 10:03
Guides
Start building
Start with the API reference. More guides open here as they're published.
Quickstart
Get your API key, then send your first WhatsApp message with one request.
API reference
Every endpoint, its parameters, and examples in cURL, JavaScript and Python.
Message templates
Send Meta-approved WhatsApp templates at any time, with or without a file.
Buttons & lists
Reply inside an open conversation with up to 3 buttons or a list menu.
CRM leads
Create or update contacts with tags, lists and your own metadata.
Webhooks
Get new messages, orders, leads and delivery updates posted to your server.
From developers
Built on Wetarseel
Placeholder quotes: replace them in lib/developer.ts before launch.
“Replace with a real quote about how quickly the integration went live.”
Developer nameCTO, an online store“A second real quote: the docs, the webhooks, or the support team.”
Developer nameEngineer, a logistics company“A third quote, ideally with a number: hours saved or messages sent.”
Developer nameFounder, an agency
Web chat
Add web chat to your site
Embed a floating WeTarseel chat widget on your site. Conversations appear in live chat under the Website Chat channel.
<script>
(function(w,d,s,o){w[o]=w[o]||function(){(w[o].q=w[o].q||[]).push(arguments)};
var j=d.createElement('script');j.async=1;j.src='https://app.wetarseel.ai/embed/webchat.js';
d.head.appendChild(j);})(window,document,'script','wtChat');
wtChat('init', { widgetKey: 'YOUR_WIDGET_KEY' });
</script>