Timber - Open source material design music player
API List - A collective list of APIs. Build something.
Graylog - Graylog is an open source log management platform for collecting, indexing, and analyzing both structured and unstructured data.
Abstract APIs - Simple, powerful APIs for everyday dev tasks
AWS CloudTrail - AWS CloudTrail is a web service that records AWS API calls for your account and delivers log files to you.
Phantombuster - A marketplace of simple to use no-code APIs