Hello, at this time we do not offer the SailPoint Certifications to those who are not associated with SailPoint as either a customer or partner. This may change in the future but we do not have an official timeline for this update at the moment.
are there any partners that provide certification?
As far as I know, the answer is no. You have to complete the training path in SailPoint University before signing up for an exam.
With your personal creds, you cant get access to SailPoint things.
If you work for a client who is the partner\customer to SailPoint or if your employer is the partner\customer to SailPoint then you can get access to SailPoint things like training, exam, certifications etc.
Hope this info replies to your question.