Yup, it's another alternative to using the regular API. The issue was that a lot of the providers required you to build their libs and caused a lot of friction running on standalone vanilla JS. This aims to compile all those solutions and package it.
Meta's new prompt-guard-86M normally flags almost everything as a jailbreak, but apparently spacing out letters makes it see prompts as harmless. Pretty weird way they found this - instead of hammering it with jailbreaks, they just compared embedding weights with the non fine-tuned model.