RICH MESSAGING
Get an edge on competitors with RCS and WhatsApp
Exchange images and video content, include quick replies, activate chatbots and more with rich messaging for businesses. It offers all the same great features you know and love but is a more engaging and conversational way of doing business.

Why use rich messaging channels?
91%
Companies with omnichannel customer engagement strategies retain on average 89% of their customers, compared to a customer retention rate of 33% for companies with weak omnichannel customer engagement.
73%
73% of customers prefer to use multiple channels when shopping. Connecting with your customers on their preferred channel such as RCS or WhatsApp increases your chances of engagement.
40%
Heating engineering company Vaillant increased their customer engagement rate from 2% to 40% by using a combination of RCS and SMS landing pages.
Built by developers, for developers. Integrate our APIs for simple, real-time communication
Use our API documentation to integrate Esendex’ services into your systems within minutes. Here’s how to send an SMS:
// The POST v1/messages endpoint allows you to send a message to a single contact in one request.
// The message can also be sent via different channels; including SMS, Whatsapp and RCS.
curl -X POST 'https://api.esendex.co.uk/v2/messages' -H 'X-Api-Key: {{your-key-here}}' -H 'Content-Type: application/json' -d
{
"accountReference": "EXxxxxxxxx",
"name": "name",
"characterSet": "characterSet",
"channel": "channel",
"from": "from",
"validity": "2025-07-30T09:38:04.4517739+00:00",
"messageType": "messageType",
"body": {
"text": "text",
"templateId": "templateId"
},
"recipients": [
{
"msisdn": "msisdn",
"variables": {},
"metaData": {}
}
],
"addressBook": {
"contacts": [
{
"id": "id"
}
]
},
"metaData": {}
}
No commitment, 30 day free trial
Begin your journey by opening a free Esendex account today and get 100 SMS credits.
Ready? Set? Go!
Learn how to get your service up and running with our simple quickstart guides.
Let’s start sending, together.
Discover the full power of our mobile messaging platform.
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