Wordfence: We've detected CloudFlare blocking our requests to your site.

[Corsac]

Trying to add a D.T site to the Wordfence Central and seeing this error?

The error message says cloudflare is blocking the request.
This is actually due to Disciple.Tools blocking unrestricted rest endpoints.

To enable go to WP Admin > Settings (D.T) > Security > API Whitelist.
Add these urls to the box and save:

wp-json/wordfence/v1
wp-json/wordfence/v1/authenticate
wp-json/wordfence/v1/config
wp-json/wordfence/v1/disconnect
wp-json/wordfence/v1/scan
wp-json/wordfence/v1/scan/issues
wp-json/wordfence/v1/scan/issue