---
title: "Services.yaml"
manual: "TYPO3 Explained"
version: "11.5"
permalink: "https://docs.typo3.org/permalink/t3coreapi:extension-configuration-services-yaml@11.5"
source: "ExtensionArchitecture/FileStructure/Configuration/ServicesYaml.rst"
rendered: "2026-10-21T15:30:00+00:00"
---

> [!WARNING]
> **Attention**
>
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> is no longer being maintained. Use the version switcher on the top
> left of this page to select documentation for a supported version of TYPO3.
>
> Need more time before upgrading?
> You can purchase Extended Long Term Support (ELTS) for TYPO3 v11 here:
> [TYPO3 ELTS](https://typo3.com/services/extended-support-elts).

# `Services.yaml` {#extension-configuration-services-yaml}

Services can be configured in this file. TYPO3 uses it for:

-   [Dependency Injection](https://docs.typo3.org/permalink/t3coreapi:configure-dependency-injection-in-extensions@11.5)
-   [Event Listeners](https://docs.typo3.org/permalink/t3coreapi:eventdispatcherregistration@11.5)
-   Command Controllers (see [Feature: #89139 - Add dependency injection
    support for console commands](https://docs.typo3.org/c/typo3/cms-core/main/en-us/Changelog/10.3/Feature-89139-AddDependencyInjectionSupportForConsoleCommands.html))
-   [Registering a widget with the dashboard](https://docs.typo3.org/c/typo3/cms-dashboard/11.5/en-us/Configuration/WidgetRegistration.html#register-new-widget)

**EXT:my_extension/Configuration/Services.yaml**

```yaml
services:
  _defaults:
    autowire: true
    autoconfigure: true
    public: false

  T3docs\Examples\:
    resource: '../Classes/*'
    exclude: '../Classes/Domain/Model/*'

  MyVendor\MyExtension\LinkValidator\LinkType\ExampleLinkType:
    tags:
      -  name: linkvalidator.linktype

```