The curl -v command performs an HTTP request and displays detailed information (verbose mode) about each step of the request and server response. This command is useful for debugging network problems, monitoring and analyzing the interaction between client and server when making HTTP requests. In this Curl -v example, we request the ReqBin echo URL. Click Run to execute the Verbose Mode online and see the result. The C#/.NET code was automatically generated for the Curl -v Flag example.