log4net - log4net is a tool to help the programmer output log statements to a variety of output targets.
Postman - The Collaboration Platform for API Development
Serilog - Backend Development and Utilities
DreamFactory - DreamFactory is an API management platform used to generate, secure, document, and extend APIs.
Logmatic - Logmatic is a log centralization, analytics & visualization platform to improve software & business performance.
AWS CloudTrail - AWS CloudTrail is a web service that records AWS API calls for your account and delivers log files to you.