> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lerian.studio/llms.txt
> Use this file to discover all available pages before exploring further.

# Fees Engine via Helm

> Helm chart installation and version reference for the Fees Engine plugin.

The Fees Engine plugin provides fee calculation and simulation capabilities for Midaz transactions.

<Note>
  Fees Engine requires an Enterprise license. Contact Lerian for access to plugin images and deployment credentials.
</Note>

<Warning>
  Fees Engine is only available for Midaz v3 and later. It is not compatible with Midaz v2.
</Warning>

## Prerequisites

***

* A running Midaz deployment (v3.x or later).
* Enterprise license and registry credentials.

## OCI registry

***

```bash theme={null}
oci://registry-1.docker.io/lerianstudio/plugin-fees-helm
```

## Installation

***

```bash theme={null}
helm install plugin-fees oci://registry-1.docker.io/lerianstudio/plugin-fees-helm --version <version> -n midaz-plugins --create-namespace
```

## Version compatibility

***

| Chart version | Backend | UI    | Midaz Helm chart compatibility |
| :------------ | :------ | :---- | :----------------------------- |
| 4.1.2         | 3.0.8   | 3.0.0 | v3.x, v4.x, v5.x               |
| 3.5.1         | 3.0.5   | 3.0.0 | v3.x, v4.x, v5.x               |
| 3.4.7         | 3.0.3   | 3.0.0 | v3.x, v4.x                     |

For the full cross-product compatibility matrix, see [Version compatibility](/en/platform/helm/helm-version-compatibility).

## Resources

***

* [Fees Engine documentation](/en/midaz/plugins/fees-engine/fees-engine-overview)
* [Helm chart repository](https://github.com/LerianStudio/helm)