Authdog

Yahoo

Last updated Aug 15, 2026
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Yahoo signs users in with their Yahoo account. Its user base skews toward long-lived consumer email addresses, which makes it a useful secondary connector on mainstream products.

Copy the redirect URI

In the Authdog console, select the project and environment, open Authentication > Providers, find Yahoo, and click Enable. Copy the redirect URI shown in the form:

https://identity.authdog.com/api/v1/callback/<connectionId>

Create the application

  1. Open the Yahoo Developer Network app page and create an app.
  2. Set the Application Type to Web Application.
  3. Set the Redirect URI to the redirect URI from Authdog — Yahoo requires HTTPS.
  4. Under API Permissions, enable Profiles (Social Directory) read access.
  5. Copy the Client ID (Consumer Key) and Client Secret (Consumer Secret).

Configure Authdog

Field Value
Client ID The client identifier from the provider
Client Secret The client secret from the provider

Save, then toggle the connection active.

What Yahoo returns

Authdog requests the openid profile email scopes and reads the profile from https://api.login.yahoo.com/openid/v1/userinfo.

The userinfo endpoint returns the sub identifier, name, email, and email verification flag.

Yahoo rejects plain HTTP redirect URIs outright, so local development needs a public HTTPS host.

Test it

  1. Open your environment's hosted sign-in page, or link to https://identity.authdog.com/api/v1/signin/<connectionId>.
  2. Select the Yahoo button and complete the flow.
  3. Confirm the user appears under Users in the console with a Yahoo identity linked.

Troubleshooting

Symptom Cause
INVALID_REDIRECT_URI The redirect URI is not HTTPS, or does not match
invalid_client Consumer key and secret come from different apps
Redirect or callback URL error The URI registered with the provider does not match Authdog's exactly
Works in one environment only Each environment has its own connectionId, and so its own redirect URI to register
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