How to configure website without nameservers

Hi team,
we have a challenge without nameservers we needs to configure website in Cloudflare.
we have TXT record and A record and all

I guess you are asking to use Cloudflare without using Cloudflare nameservers?

If so, you need to use a Partial Setup. A Business or Enterprise Plan is required…

If not that, can you explain what you are trying to achieve?

yes, we have business plan
we need to setup WAF and Cache is that possible?

If we go with partial setup

WAF & CDN will work with this