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This guide walks you through enabling Okta SSO for your Dune team using OIDC.

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Prerequisites

You’ll need:
  • Admin access for your Dune team
  • Admin access for your Okta tenant
  • Access to your domain’s DNS provider (to add TXT records)

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Step 1 — Add and verify your SSO domain(s)

  1. In Dune, go to Settings → Security & Privacy → Okta authentication.
  2. Under Configure SSO domains, click Add domains.
  3. Enter the email domain(s) your team uses (for example, company.com).

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Verify the domain (DNS TXT record)

After adding a domain, it may show as Pending. Dune will display DNS instructions like:
  • Host: dune-verification
  • Type: TXT
  • Value: a unique verification token
Add a TXT record in your DNS provider:
  • Name / Host: dune-verification (some providers require the full name like dune-verification.company.com)
  • Type: TXT
  • Value: (paste the token from Dune exactly)
Then return to Dune and click Verify next to the domain.
Tip DNS changes can take time to propagate. If verification fails, double-check the host/name formatting in your DNS provider and try again after propagation.

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Step 2 — Create an Okta OIDC app (Web)

In Okta:
  1. Go to Applications → Create App Integration.
  2. Choose OIDC - OpenID Connect.
  3. Choose Web Application.
  4. In the app settings, add the Sign-in redirect URIs shown in Dune.
  5. Save the app.
Note Use the redirect URIs exactly as shown in Dune. A mismatch is the most common cause of Okta sign-in errors.

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Step 3 — Copy Okta credentials into Dune

Back in Dune (Settings → Security & Privacy → Okta authentication), fill in:
  • Client ID: from your Okta OIDC application
  • Client secret: from your Okta OIDC application
  • Okta domain: your Okta org URL, for example:
    • https://your-domain.okta.com

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Step 4 — Enable Okta SSO

  1. Make sure at least one domain shows as Verified.
  2. Toggle Enable Okta SSO on.
  3. Click Enable.
Important
  • Existing members with non-matching domains must be removed before enabling.
  • Users cannot change their email while Okta SSO is enforced.
  • Users with email/password accounts will be prompted to log in with Okta SSO.