Step 1: First, we need to create new project in Google developer console account using your google account.
Step 2: Create new google account, if you don’t have one.
Step 3: Navigate to google developer console page using below link using your google account.
Step 4: Create New Project under the Library. Refer to the below screenshot,
Step 5: Give the Project name and click Create button. Here I have used Project name as “Sample Project”.
Step 6: Once new project created, you can move to that project by selecting in project selection drop-down. Refer screenshot,
Step 7: Under Library tab, you can create API key for any google service. Using this API key, you can access google services in application level.