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When you sign up, Wavix places your account in the sandbox while the team reviews it. The Wavix portal shows when sandbox API access is active. The sandbox gives you access to the Wavix API before you choose an account level or add funds. Use it to test your integration and learn how the API works. Sandbox messages and calls use live providers and can be sent only to the verified number on your account. Responses, delivery reports, and call behavior are the same as on a paid account.
Sandbox API access is rolling out gradually, so it isn’t available to every new account yet.
For the full account setup flow, see Create a Wavix account.

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What’s available

When your sandbox becomes active, Wavix adds a free phone number to your account. This number is your sender: the Sender ID for SMS and the Caller ID for voice. You can find it on the Numbers & trunks page in the Wavix portal.
While your account is in the sandbox, you may see a different Sender ID or Caller ID than the free phone number added to your account. This is a sandbox limitation.
In the sandbox, you can:
  • Send and receive SMS messages.
  • Make and receive voice calls.
These are the main flows to test, but most of the API is available. You can explore other endpoints, such as listing your numbers or checking delivery reports. Endpoints that require a selected account level return an error (see What’s not available). The sandbox uses the same API endpoints and API key as a paid account. There’s no separate sandbox URL or test key, so the same code works after you select an account level. To start testing, send to your verified number. You can do this two ways:

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Restrictions

The sandbox is for testing your own integration, not for reaching real recipients. These restrictions apply:
  • Verified number only: Calls and messages are limited to the phone number you verified during sign-up. The platform rejects any request that targets a different number.
  • Marked as test traffic: Sandbox SMS messages are prefixed with [WAVIX TRIAL]. The prefix is removed when you upgrade to a paid account.
  • Lower rate limits and volume caps: The sandbox applies lower rate limits and usage caps than a paid account.

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What’s not available

Some features and endpoints depend on a selected account level and aren’t available in the sandbox, such as purchasing numbers or sending traffic to anyone other than your verified number.

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Leave the sandbox

To leave the sandbox and use the full platform, select an account level. You don’t need to change any code, since the sandbox uses the same endpoints and API key as a paid account. For the steps and what becomes available, see Go live.