YNAB authentication

YNAB uses a customer-owned OAuth app

The current ynab toolkit supports OAuth2 and requires a YNAB application's client ID and client secret. Create the app under YNAB's developer settings, register the exact redirect URI shown by the current Composio auth-config flow, and connect through that custom config.

If YNAB reports that an application is restricted, review the YNAB app's current review and access-token restrictions. An app intended only for its owner and an app distributed to unrelated users can have different provider review requirements. Do not promise a provider approval date.