First you need to create or select a project in the Google Cloud Platform Console and enable the API. Using this link guides you through the process and activates the Google Translate API automatically. Alternatively, you can activate the Google Translate API yourself in the Cloud Platform Console from this page Credentials page. In either case, you end up on the Credentials page and can create your project's credentials from here.
Important: Google Translate API v2 requires billing information for all accounts before you can start using the service. See instructions below on how to enable billing. To enable billing for your project, do the following:
- Go to the project settings page. If prompted, select a project or create a new one.
- In the Billing section, click Enable billing.
- If you do not have a billing account, create one.
- Select your location, fill out the form, and click Submit and enable billing.
Now you may get Api Key and past it to Gloal Translator settings.