I know just enough to be dangerous. I know APIs package functionality, and there’s something called Ajax, JSON and RESTful, but I don’t grok it. I can usually figure out how to insert canned HTML, like Google Maps generates.

I’d like to offer passphrases like on MakeMeAPassword to generate readable passphrases at point of use.

The KeePass plugin allows you to add mutators- caps, numbers, symbols, etc.
There’s an API for this, written in C++, which even I know isn’t HTML. Here’s the documentation for the API https://readablepassphrase.codeplex.com/wikipage?title=Public%20API&referringTitle=Documentation

It generates passphrases like,

the hailstorm mitigates a witty vote
the canvas proclaimed the wombat will solder the emulator
her imperial shipmate deduced a splicer
the haul telephones the node
a sling was outgrowing until the hothead
his guard-dog wondered a vitamin was feeding my enchanted kiloton

I don’t know enough to know whether this is ridiculously easy or ridiculously hard.