> ## 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.

# Infrastructure via Helm

> Helm charts for Lerian infrastructure components — OTEL Collector, Fetcher, Flowker, Tracer, and Underwriter.

Lerian provides Helm charts for infrastructure components that support the core platform. These charts handle telemetry collection, data synchronization, workflow orchestration, transaction validation, and risk assessment. Each is deployed independently with its own versioning.

## Prerequisites

***

* A running Midaz deployment (most infrastructure components connect to Midaz services).
* Kubernetes 1.30+ and Helm 3+.

## OTEL Collector Lerian

***

OpenTelemetry Collector configured for Lerian's observability stack. Collects, processes, and exports telemetry data from Lerian services.

**OCI registry:**

```bash theme={null}
oci://registry-1.docker.io/lerianstudio/otel-collector-lerian
```

| Chart version | OTEL  |
| :------------ | :---- |
| 2.2.1         | 2.1.0 |

## Fetcher

***

Fetcher is a data retrieval and synchronization service for the Lerian platform.

**OCI registry:**

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

| Chart version | appVersion |
| :------------ | :--------- |
| 2.0.3         | 1.2.0      |

## Flowker

***

Flowker handles workflow orchestration and event processing within the Lerian platform.

**OCI registry:**

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

| Chart version | appVersion |
| :------------ | :--------- |
| 1.0.0         | 1.0.0      |

## Tracer

***

Tracer provides transaction validation, rule enforcement, and spending limit management for the Lerian platform.

**OCI registry:**

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

| Chart version | appVersion |
| :------------ | :--------- |
| 1.0.0         | 1.0.0      |

## Underwriter

***

Underwriter handles risk assessment and underwriting processes within the Lerian platform.

**OCI registry:**

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

| Chart version | appVersion |
| :------------ | :--------- |
| 1.0.1         | 1.0.0      |

## Resources

***

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

* [Helm chart repository](https://github.com/LerianStudio/helm)