> ## Documentation Index
> Fetch the complete documentation index at: https://help.convertalk.com/llms.txt
> Use this file to discover all available pages before exploring further.

# POST Send Message API

> Use this API to send a WhatsApp message.

#### **API Endpoint**

```
<https://api.v7. Convertalk.com/whatsapp-automation/wa/send-message?apiKey=*API KEY*>
```

#### **Request Headers**

| **Header**   | **Value**        |
| ------------ | ---------------- |
| apiKey       | *API KEY*        |
| Content-Type | application/json |

### **Error Codes**

Refer to the [official documentation](https://developers.facebook.com/docs/whatsapp/on-premises/errors) for more information on error codes.