It has endpoints for managing user accounts and for registering OAuth2 clients ... in Spring Security OAuth that can do the heavy lifting if your client is Java.

One strategy that might help you is becoming an authorized user on someone else’s credit card account. Research shows that nearly half of authorized users typically have a credit score of 680 or ...

However, if you become an authorized user on someone else's credit card or plan on adding someone as an authorized user, you should be aware that some credit bureaus include the primary cardholder ...