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Integrate with n8n

Support level: Community

What is n8n?​

n8n is a workflow automation platform that combines AI capabilities with business process automation.

-- https://n8n.io/

Preparation​

The following placeholders are used in this guide:

  • n8n.company is the FQDN of the n8n 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.

n8n requirements

n8n OIDC SSO requires an Enterprise plan. You also need to be an n8n instance owner or administrator to configure SSO.

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 n8n with authentik, you need to create an application/provider pair in authentik.

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 create an application and provider pair. (Alternatively you can first create a provider separately, then create the application and connect it with the provider.)

    • Application: provide a descriptive name, an optional group for the type of application, the policy engine mode, and optional UI settings. Take note of 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 will be required later.
      • Add a Redirect URI of type Strict Authorization as https://n8n.company/rest/sso/oidc/callback.
      • Select any available signing key.
    • 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.

Configure role claims (optional)​

n8n can provision instance roles and project roles from OIDC claims. Use application entitlements to keep n8n-specific role assignment scoped to this application.

  1. Open the n8n application that you just created in the authentik Admin interface.

  2. Click the Application entitlements tab.

  3. Create one entitlement for each n8n role value that authentik should send, such as global:admin or global:member.

  4. To provision project roles, create entitlements in the format <project_id>:<role>, such as <project_id>:editor.

  5. Bind the appropriate users or groups to each entitlement.

  6. Navigate to Customization > Property Mappings and click Create. Create a Scope Mapping with the following settings:

    • Name: choose a descriptive name, such as authentik n8n OAuth Mapping: OpenID 'n8n'.

    • Scope name: n8n

    • Expression:

      instance_roles = {"global:member", "global:admin", "global:chatUser"}
      entitlement_names = {
          entitlement.name
          for entitlement in request.user.app_entitlements(provider.application)
      }

      claims = {
          "n8n_instance_role": "global:member",
          "n8n_projects": [],
      }
      for role in instance_roles:
          if role in entitlement_names:
              claims["n8n_instance_role"] = role
              break

      claims["n8n_projects"] = sorted(
          name
          for name in entitlement_names - instance_roles
          if ":" in name
      )

      return claims

  7. Click Finish.

  8. Navigate to Applications > Providers and edit the n8n provider.

  9. Under Advanced protocol settings > Selected Scopes, add the scope mapping that you just created.

  10. Click Update.

n8n configuration​

  1. Log in to n8n as an instance owner or administrator.
  2. Navigate to Settings > SSO.
  3. Under Select Authentication Protocol, select OIDC.
  4. Confirm that the redirect URL shown by n8n is https://n8n.company/rest/sso/oidc/callback.
  5. Configure the following settings:
    • Discovery Endpoint: https://authentik.company/application/o/<application_slug>/.well-known/openid-configuration
    • Client ID: Client ID from authentik
    • Client Secret: Client Secret from authentik
  6. Click Save settings.
  7. Set OIDC to Activated.

If n8n is running behind a load balancer or reverse proxy and shows an internal redirect URL, set N8N_EDITOR_BASE_URL to the public n8n URL, then re-check the redirect URL before saving the SSO configuration.

Enable role provisioning (optional)​

If you configured the optional n8n scope mapping in authentik, use n8n's SSO role assignment settings to consume those claims.

Existing n8n access

When SSO role provisioning is enabled, n8n re-evaluates roles on every login and can remove access that is not reflected in the IdP response.

  1. In n8n, navigate to Settings > SSO.
  2. Set Additional scopes to n8n.
  3. Set Role assignment to Instance roles via SSO or Instance and project roles via SSO.
  4. Set Role mapping method to Map rules on your IdP.
  5. Click Save settings.

Configuration verification​

To confirm that authentik is properly configured with n8n, log out of n8n and sign in again using SSO. You should be redirected to authentik and returned to n8n after authentication.

If you enabled role provisioning, sign in with a user that has an n8n application entitlement and verify that n8n assigned the expected instance role or project role.

Resources​