Thanks for reaching out to us. A 404 error means that the API endpoint you are trying to access is not found. Here are some potential reasons for this issue:
Endpoint URL: Double-check that you are using the correct URL for the endpoint you are trying to access. Bing Search API has multiple endpoints, including Web Search, Image Search, Video Search, News Search, and more. Make sure you are using the correct endpoint URL for the type of search you are trying to perform.
API Key: Verify that your API key is still valid and has not expired. You can check your API key status in your Azure portal.
Quota Limits: Make sure that you have not exceeded your quota limits. Bing Search API has usage limits and if you exceed them, you may receive a 404 error.
Permissions: Ensure that you have the correct permissions to access the Bing Search API. If you are using a new Azure account or have recently updated your subscription, you may need to update your permissions.
Network Issues: Check if there are any network issues that may be preventing you from accessing the Bing Search API. Try to access the API from a different network or location to see if the issue persists.
Based on my personal experience, you may need to double check on your endpoint URL. Please let me know if none of above works, we are happy to help further.
-Please kindly accept the answer and vote 'Yes' if you feel helpful to support the community, thanks a lot.