I understand you are looking for ways to check API calls that are made using TLS 1.0. From the information provided on this StackExchange link[1 -- the thread is pulling information from a GKE pod], it is possible to Query the Stackdriver Trace API on your project. The output of running a Curl command for verbose information on particular trace ID would return the TLS version that the SSL connection is using.
I hope that info would be helpful. [1]https://serverfault.com/questions/858839/unable-to-get-stackdriver-trace-information-in-google-cloud-console -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/84dd40f2-ba6a-452a-afac-a66d0f4685f5%40googlegroups.com.
