> Markdown version of [Observability Kit](https://vaadin.com/docs/v24/tools/observability). Section index: [llms.txt](https://vaadin.com/docs/v24/tools/llms.txt)

# Observability Kit

> **Note: Commercial Feature**
>
> A commercial Vaadin subscription is required to use Observability Kit in your project.
>
> - [Start Trial](https://vaadin.com/pro/validate-license)
>
> - [See Pricing](https://vaadin.com/pricing)

Observability Kit provides integration with industry-leading Application Performance Monitoring (APM) and observability tools to provide insight into both the frontend and backend of an application.

At its core, Observability Kit is a custom Java agent that runs with a Vaadin Flow application to collect telemetry data, including traces, metrics, and logs.

> **Tip: New in Vaadin 24.1**
>
> Starting with Vaadin version 24.1, you can use Observability Kit [to observe the frontend](https://vaadin.com/docs/v24/tools/observability/configuration.md#frontend-observability-configuration) of your application.

## <a id="topics"></a>Topics

- [Getting Started](https://vaadin.com/docs/v24/tools/observability/getting-started.md): Step-by-step guide on how to use Observability Kit in an application.
- [Configuration](https://vaadin.com/docs/v24/tools/observability/configuration.md): How to configure Observability Kit and what are its default settings.
- [Customization](https://vaadin.com/docs/v24/tools/observability/customization.md): How to add custom instrumentation traces and metrics to an application.
- [Integrations](https://vaadin.com/docs/v24/tools/observability/integrations.md): Observability Kit can be used with any vendor that natively supports the OpenTelemetry standard.
- [Reference](https://vaadin.com/docs/v24/tools/observability/reference.md): Details on traces, metrics that Observability Kit provides, and their attributes.

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