Hot to get a Bing Search API key v5
Step 1: Go to the Microsoft Azure Cognitive Services Marketplace.
Step 2: Click on the "Search" tab and then on the "Get API Key" button:
Step 3: On the next screen, agree to Microsoft's TOS, select your country and click the "Next" button:
Step 4: If you are asked to login, please login to your Microsoft account.
If you don't have a Microsoft account, you can signup for free, here.
Step 5: Visit your Microsoft APIs page and scroll down to find "Key 1".