- https://www.blackfire.io
- https://newrelic.com
- Site24x7 - https://www.site24x7.com/help/apm.html
- https://github.com/elastic/apm-agent-php
- https://www.atatus.com/
- https://stackify.com/retrace/
- https://pinpoint-apm.github.io/pinpoint/
- https://tideways.com/