Send Text Notification from your Synology NAS with Free Mobile (SMS)

This article is for you if you own a Synology NAS and your Mobile provider is Free Mobile.

Free Mobile API

Free Mobiles provides an API endpoint to send text messages to yourself when you have a phone subscription. The feature has been available since June 2014. However, it is not documented officially.

You must make a GET request to the following the API endpoint:

Details of each query parameter:

$user: Your Free login

$pass: Your API key

$to: Your phone number

$message: The message URL encoded.

The API returns the following code responses:

To get your API key, log in to your Free Account, then click on the “My Option” link on the left. Then activate the option Notifications par SMS, your API key will appear:

Synology Text Notifications

Log in to your Synology NAS, then open the “Control Panel” > “Notifications” > “Webhooks”.

In the middle of the screen, click on “Add”, you will get the following view. For the provider option, select “Custom”, and for the rule, it’s up to you: it defines which notifications are send, you may select “critical”.

Then, the popup displays a form with configurations:

For the Provider Name, write “Free Mobile”.
For the Subject, write any subject your want.
For the Webhook URL, write the Free API endpoint and replace the $user, $pass and $to with their corresponding values.

The last step asks the HTTP method to make sure the GET is selected:

Finally, click on the Apply button to save the new Text message notification. A new webhook element will appear on the Synology notification interface:

To verify whether it works, click the “Send Text Message” button, and you must receive the following message on your phone:

Voilà, now you will receive notification from your Synology NAS through Text Messages, Cheers! 🍻