---
title: Telegraf Controller reference documentation
description: Reference documentation for Telegraf Controller, the application that centralizes configuration management and provides information about the health of Telegraf agent deployments.
url: https://docs.influxdata.com/telegraf/controller/reference/
estimated_tokens: 435
publisher: InfluxData
canonical: https://docs.influxdata.com/telegraf/controller/reference/
date: '2026-01-05T21:31:03-07:00'
lastmod: '2026-01-05T21:31:03-07:00'
---

Use the reference docs to look up Telegraf Controller configuration options,
APIs, and operational details.

## [Telegraf Controller release notes](/telegraf/controller/reference/release-notes/)

Important features, bug fixes, and changes in Telegraf Controller releases.

## [Telegraf Controller configuration options](/telegraf/controller/reference/config-options/)

Telegraf Controller lets you customize startup behavior using command-line flags, environment variables, or a `.env` file.

## [Telegraf Controller API](/telegraf/controller/reference/api/)

Use the Telegraf Controller HTTP API to manage agents, configurations, and tokens programmatically. Learn how to authenticate API requests and explore the interactive API reference served by your Telegraf Controller instance.

## [Telegraf Controller architecture](/telegraf/controller/reference/architecture/)

Architectural overview of the Telegraf Controller application.

## [Authentication and authorization](/telegraf/controller/reference/authentication-authorization/)

Reference for how Telegraf Controller verifies user identity, decides what each user can do, and protects API endpoints. Covers authentication providers, user roles, API tokens, and endpoint-level authentication.

## [Agent status evaluation](/telegraf/controller/reference/agent-status-eval/)

Reference documentation for Common Expression Language (CEL) expressions used to evaluate Telegraf agent status.

## [Telegraf Controller glossary](/telegraf/controller/reference/glossary/)

Definitions of terms used in Telegraf Controller and the broader Telegraf ecosystem.

## [Telegraf Controller EULA](/telegraf/controller/reference/eula/)

Architectural overview of the Telegraf Controller application.