Amazon OAuth endpoints and related development resources
Amazon authorization endpoint
https://www.amazon.com/ap/oa
The endpoint to redirect users to in order to grant your application access to their account.
Amazon token endpoint
https://api.amazon.com/auth/o2/token
The endpoint to exchange the authorization code or refresh token for an access token and a refresh token.
Amazon userinfo endpoint
https://api.amazon.com/user/profile
The standardized OAuth endpoint that returns authenticated user profile information, including claims about the current user based on the scope of access token.