Creating the API key:
The API key is a unique identifier that authenticates requests associated with your project for usage and billing purposes. You must have at least one API key associated with your project.
To create an API key:
- Go to the Google Maps Platform > Credentials page.
- On the Credentials page, click Create credentials > API key.
- The API key created dialog displays your newly created API key.
- Click Close.
- The new API key is listed on the Credentials page under API keys.