Please refer to this documentation in OpenAPI format to manage proxy users via Public API. The API allows you to create, delete, and modify proxy users, set their limits, see current usage, and disable and enable them.
If you want to use your own backconnect entry node DNS name, you can point your subdomain/domain to our entry node. To do that, you need to add a DNS
pr.oxylabs.ioas the target. This is how such setup looks on Cloudflare DNS manager for