---
title: "Typha"
description: "Reference content for Typha in Calico Open Source, the fan-out daemon that scales Felix connections to the Kubernetes API datastore."
product: "Calico Open Source"
version: "3.32 (latest)"
section: "Reference"
canonical_url: "https://docs.tigera.io/calico/latest/reference/typha/"
---

# Typha

## [📄️Typha overview](https://docs.tigera.io/calico/latest/reference/typha/overview.md)

[Reference overview of the Typha daemon in Calico Open Source explaining how it reduces datastore load and scales Felix to large clusters.](https://docs.tigera.io/calico/latest/reference/typha/overview.md)

## [📄️Configuring Typha](https://docs.tigera.io/calico/latest/reference/typha/configuration.md)

[Reference for Typha configuration parameters in Calico Open Source covering environment variables and config file options for scaling the Kubernetes datastore.](https://docs.tigera.io/calico/latest/reference/typha/configuration.md)

## [📄️Monitoring Typha with Prometheus](https://docs.tigera.io/calico/latest/reference/typha/prometheus.md)

[Prometheus metrics reference for Typha in Calico Open Source covering connection counts, cache health, and fan-out metrics.](https://docs.tigera.io/calico/latest/reference/typha/prometheus.md)