For US based integrations, you will need to complete the following steps:
Request Production access from Plaid: Production access is a prerequisite for supporting OAuth. Plaid will contact you once your account has been enabled for Production.
Complete the registration requirements: Before implementing support for OAuth institutions, be sure to complete the registration requirements in the Plaid Dashboard. This includes providing application display information, company information, agreeing to the Plaid Master Services Agreement, and completing the Plaid security questionnaire.
You can view the Oauth Institutions page on the dashboard to see the current status of your registration.
For Europe based integrations, you will need either Development or Production access in order to use our OAuth institutions.