- PayPal supports HS256 https://www.paypalobjects.com/.well-known/openid-configuration
- Yahoo supports ES256 https://api.login.yahoo.com/.well-known/openid-configuration
RS256 only:
- GitHub - https://token.actions.githubusercontent.com/.well-known/openid-configuration
- GitLab - https://gitlab.com/.well-known/openid-configuration
- Google - https://accounts.google.com/.well-known/openid-configuration
- Intuit - https://developer.api.intuit.com/.well-known/openid_configuration
- Microsoft - https://login.microsoftonline.com/fabrikamb2c.onmicrosoft.com/v2.0/.well-known/openid-configuration