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Integrate with Outline

Support level: Community

What is Outline?​

Your team's knowledge base.

-- https://www.getoutline.com

Preparation​

The following placeholders are used in this guide:

  • outline.company is the FQDN of the Outline installation.
  • authentik.company is the FQDN of the authentik installation.
info

This documentation lists only the settings that you need to change from their default values. Be aware that any changes other than those explicitly mentioned in this guide could cause issues accessing your application.

authentik configuration​

Redirect URI changes in authentik 2026.5

In authentik versions earlier than 2026.5, all Redirect URIs are automatically treated as Authorization type. If you are using one of these older authentik versions, add only the Authorization URL to your Redirect URIs and do not configure a Post Logout URI.

To support the integration of Outline with authentik, you need to create a scope mapping and an application/provider pair in authentik.

Create an email verification scope mapping​

Outline requires the email scope to return a value of email_verified: True. As of authentik 2025.10, the default behavior is to return email_verified: False, so a custom scope mapping is required for Outline to allow authentication.

Refer to Email scope verification for instructions on how to create the required custom scope mapping.

Create an application and provider​

  1. Log in to authentik as an administrator and open the authentik Admin interface.

  2. Navigate to Applications > Applications and click New Application to open the application wizard.

    • Application: provide a descriptive name, an optional group for the type of application, the policy engine mode, and optional UI settings. Note the Slug value because it is required later.
    • Choose a Provider type: select OAuth2/OpenID Connect as the provider type.
    • Configure the Provider: provide a name (or accept the auto-provided name), the authorization flow to use for this provider, and the following required configurations.
      • Note the Client ID and Client Secret values because they are required later.
      • Add a Redirect URI of type Strict Authorization as https://outline.company/auth/oidc.callback.
      • Under Advanced protocol settings:
        • Set the Subject Mode to Based on the User's username.
        • Add OAuth Mapping: OpenID 'email' with "email_verified" to the Selected Scopes.
        • Remove the authentik default OAuth Mapping: OpenID 'email' scope.
    • Configure Bindings (optional): you can create a binding (policy, group, or user) to manage the listing and access to applications on a user's Application Dashboard page.

  3. Click Submit to save the new application and provider.

Outline configuration​

To configure Outline to use authentik, add the following variables to your Outline environment file:

.env
OIDC_CLIENT_ID=<Client ID from authentik>
OIDC_CLIENT_SECRET=<Client Secret from authentik>
OIDC_AUTH_URI=https://authentik.company/application/o/authorize/
OIDC_TOKEN_URI=https://authentik.company/application/o/token/
OIDC_USERINFO_URI=https://authentik.company/application/o/userinfo/
OIDC_LOGOUT_URI=https://authentik.company/application/o/<application_slug>/end-session/
OIDC_DISPLAY_NAME=authentik

Restart Outline to apply the changes.

Configuration verification​

To confirm that authentik is properly configured with Outline, open Outline and log in with authentik.

Resources​