Next you need to check the checkbox near the "Maps".
Enter some name for this project. For example "TourDash project". And select "Yes" in an agreement field.
Click "Create billing account".
Enter a name for the billing account. For example "TourDash billing account".
In the next steps you need to enter your personal information.
You can chose the type of the account: Individual or Business (if you have a registered company).
Next you need to select a payment method. To learn more about changes to Google products, pricing, and support go here https://cloud.google.com/maps-platform/user-guide.
After linking to your bank card you can generate your own API key.
Your API key will be in the marked field. Copy and save it in some secure place to have a quick access to it for further usage.
After getting the API key you need to secure credentials.
In an application restriction tab check "HTTP referrers (websites)" and enter the address https://live.tourdash.com/*
Now you can add the API key to your TourDash account. Just head over to https://live.tourdash.com/settings and enter the key in the corresponding field.
That is it!