https://ammblog.azurewebsites.net/2018/07/02/enhanced-security-update-for-bing-maps-api-keys/
Enhanced Security Update for Bing Maps API Keys | Mashford's Musings
Jul 2, 2018 - As announced on May 24, the Bing Maps Developer portal shipped a new feature allowing you to restrict access on
bing maps apienhanced securityupdate
https://learn.microsoft.com/en-us/bingmaps/rest-services/imagery/?redirectedfrom=MSDN
Imagery API - Bing Maps | Microsoft Learn
An overview page for the Bing Maps Imagery API section with links to articles that describe how to get static maps and Bing Maps imagery information.
bing mapsimageryapimicrosoftlearn