Send text

Prerequisites

To send messages, you’ll need to:

Create a project API key in the Kapso dashboard under Integrations → API keys
Connect a WhatsApp number under WhatsApp → Phone numbers

Send a text message

import { WhatsAppClient } from '@kapso/whatsapp-cloud-api';

const client = new WhatsAppClient({
  baseUrl: 'https://api.kapso.ai/meta/whatsapp',
  kapsoApiKey: process.env.KAPSO_API_KEY!
});

await client.messages.sendText({
  phoneNumberId: '647015955153740',
  to: '15551234567',
  body: 'Hello! Your order #12345 has been shipped.'
});

curl -X POST 'https://api.kapso.ai/meta/whatsapp/v24.0/647015955153740/messages' \
  -H 'X-API-Key: YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
    "messaging_product": "whatsapp",
    "to": "15551234567",
    "type": "text",
    "text": {
      "body": "Hello! Your order #12345 has been shipped."
    }
  }'

Send to a BSUID

Use recipient when you only have a BSUID or parent BSUID.

REST API

curl -X POST 'https://api.kapso.ai/meta/whatsapp/v24.0/647015955153740/messages' \
  -H 'X-API-Key: YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
    "messaging_product": "whatsapp",
    "recipient_type": "individual",
    "recipient": "US.13491208655302741918",
    "type": "text",
    "text": {
      "body": "Hello! Your order #12345 has been shipped."
    }
  }'

Non-template messages still require an open 24-hour customer service window. Use an approved template to start or reopen a conversation. See business-scoped user IDs.

Getting started

WhatsApp

For your team

Onboard customers

Automations

Prerequisites

Send a text message

Send to a BSUID

​Prerequisites

​Send a text message

​Send to a BSUID

Prerequisites

Send a text message

Send to a BSUID