Can I integrate with 'just' the MFA services?

Tried to ask this question using the sales form a week ago but still no response so I hope to have better luck here. Our tech stack is angular 14 on the front and spring-boot/java in the back. We currently handle authentication with 2FA and authorization / user management ourselves. As a first step we are looking into refactoring our 2FA implementation and are wondering if we could integrate just that part with the Okta MFA Services. If so, is there some documentation available I can look at to get an idea of the level of effort that would take?