AWS CloudTrail - AWS CloudTrail is a web service that records AWS API calls for your account and delivers log files to you.
Postman - The Collaboration Platform for API Development
Graylog - Graylog is an open source log management platform for collecting, indexing, and analyzing both structured and unstructured data.
DreamFactory - DreamFactory is an API management platform used to generate, secure, document, and extend APIs.
Timber.io - Timber.io is the best logging platform for ruby, node, elixir and much more.
Timber - Open source material design music player