Send Bulk SMS

POST

https://api.withallo.com/v1/sms/bulk

Send bulk SMS to European numbers with Allo’s reliable infrastructure.
You can currently send up to 20 messages per day. To enable this feature and request your API key (or to increase your limit), please contact our team at support@withallo.com.

Request

Authorization

Add parameter in header

Authorization

Example:

Authorization: ********************

Body Params application/json

Examples

Responses

🟢200Success

application/json

Body

🟠400Daily Limit Reached

Request Example

Shell

JavaScript

Java

Swift

curl --location --request POST 'https://api.withallo.com/v1/sms/bulk' \
--header 'Authorization: <api-key>' \
--header 'Content-Type: application/json' \
--data-raw '{
    "to_numbers": [
        "string"
    ],
    "message": "string"
}'

Response Example

200 - Example 1

{}

Modified at 2025-09-03 23:51:10

Send SMS