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Add Slack as a social connection

You will learn the following:

  • Use Slack to authenticate users with OAuth

Before you start

Enabling OAuth with Slack allows your users to sign up and sign in to your Clerk app with their Slack account.

Configure for your development instance

For development instances, Clerk uses preconfigured shared OAuth credentials and redirect URIs—no other configuration is needed.

  1. In the Clerk Dashboard, navigate to the SSO connections page.
  2. Select Add connection and select For all users.
  3. In the Choose provider dropdown, select Slack.
  4. Select Add connection.

Configure for your production instance

For production instances, you must provide custom credentials which involves generating your own Client ID and Client Secret using your Slack account.

To make the setup process easier, it's recommended to keep two browser tabs open: one for the Clerk Dashboard and one for your Slack's API Platform.

Enable Slack as a social connection in Clerk

  1. In the Clerk Dashboard, navigate to the SSO connections page.
  2. Select Add connection and select For all users.
  3. In the Choose provider dropdown, select Slack.
  4. Ensure that both Enable for sign-up and sign-in and Use custom credentials are toggled on.
  5. Save the Redirect URI somewhere secure. Keep the modal and page open.

Create a Slack app

  1. In the Slack API Platform, navigate to the Your Apps page and select Create an App.
  2. A modal will open. Depending on your app needs, select either From a manifest for From scratch. For more information on which to choose, refer to Slack's doc on manifests.
  3. After following the respective steps for either option, you'll be redirected to the App Credentials page. Save the Client ID and Client Secret somewhere secure. Keep this page open.
  4. In the sidebar, navigate to the OAuth & Permissions page.
  5. Scroll down to the Redirect URLs section and paste the Redirect URI you saved from the Clerk Dashboard. Select Add, then select Save URLs.

Set the Client ID and Client Secret in the Clerk Dashboard

  1. Navigate back to the Clerk Dashboard where the modal should still be open. Paste the Client ID and Client Secret values that you saved into the respective fields.
  2. Select Add connection.

Note

If the modal or page is not still open, navigate to the SSO connections page in the Clerk Dashboard. Select the Slack connection. Under Use custom credentials, you can paste the Client ID and Client Secret into their respective fields.

Test your OAuth

The simplest way to test your OAuth is to visit your Clerk app's Account Portal, which is available for all Clerk apps out-of-the-box.

  1. In the Clerk Dashboard, navigate to the Account Portal page.
  2. Next to the Sign-in URL, select Visit. The URL should resemble:
  • For development – https://your-domain.accounts.dev/sign-in
  • For production – https://accounts.your-domain.com/sign-in
  1. Sign in with your Slack account.

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