how to create customer site level contact address using soap/rest api

Summary:

need guidance on add address for contact on customer account site level using api.

Content (please ensure you mask any confidential information):

i am able to create the contact at customer account site level using soap webservice. But not able to find any api to add the address for the contact

Version (include the version you are using, if applicable):

25C

Code Snippet (add any code snippets that support your topic, if applicable):