## APM user guide

Learn how to use APM in the Observability guide.

To view APM documentation for versions before 8.12, go to the APM guide instead.

## APM agents

- Android Agent Reference
- Go Agent Reference
- iOS Agent Reference
- Java Agent Reference
- .NET Agent Reference
- Node.js Agent Reference
- PHP Agent Reference
- Python Agent Reference
- Ruby Agent Reference
- Real User Monitoring JavaScript Agent Reference

## APM extensions

- APM AWS Lambda extension
- APM attacher