# Getting started

Before you can start using the In-app Calling SDKs, you need an account and your access keys.

## Sign up for the Sinch Build Dashboard

You can get an account by [signing up for a Sinch account](https://dashboard.sinch.com/signup). When you sign up for a trial account, you are automatically given a free test number you can use for 14 days.

## Get your access credentials

You use the access keys to authenticate calls in your applications with the SDKs. You can get your access keys in the [dashboard](https://dashboard.sinch.com/settings/access-keys).

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