With WordPress this is fairly easy to handle both COPPA + FTC + Facebook (along with other Ad Network) requirements.
Write up your boilerplate text for all your disclosures.
Write a wp-cli script to inject all the various documents as individual named posts.
Some of my clients have me go one step more + actually generate a boilerplate footer with a menu of all these items.
Since this is in script form, you can also run it against any existing site + if... say... your TOS post is missing, then add it.
If you only have one Website, just search for COPPA boilerplates.
It would be helpful to understand a bit more about the problem you're trying to solve.
You want this software/API/plugin/etc to audit your own website for COPPA compliance? You want user-generated content to comply?
I am happy to help, but additional details on what you're actually trying to solve are needed.