sendMsg | Single
POST
https://api.whatsiplus.com/sendMsg/APIKEY
When sending outbound messages via our API, please ensure that the total size of the content remains below the maximum limit allowed by the channel.
If a request includes media or multiple media files whose combined size exceeds the limit, the API will return an error.
For WhatsApp, the maximum supported size is 100MB.
In addition to the existing URL-based media sending method, our API now supports two new direct upload parameters:
• file — Upload a media file directly to our server and have it delivered to the recipient through WhatsApp.
• base64_file — Send media as a raw Base64-encoded string without any MIME prefix.
Request
Body Params multipart/form-data
Responses
Request Request Example
Shell
JavaScript
Java
Swift
curl --location --request POST 'https://api.whatsiplus.com/sendMsg/APIKEY' \
--form 'phonenumber="447400733413"' \
--form 'message="This is a test message"' \
--form 'schedule="1724160037"' \
--form 'link="https://example.com/image.jpg"' \
--form 'file=@""' \
--form 'base64_file=""'Response Response Example
{
"success": "true",
"message": "Added to the message queue",
"messageId": 565
}Modified at 2025-11-25 10:09:22