All JavaScript included with Kittybox is licensed as free software, most of it under AGPL-3.0.

onboarding.js AGPL-3.0 onboarding.ts (Kittybox source code)
indieauth.js AGPL-3.0 indieauth.ts (Kittybox source code)
lib.js AGPL-3.0 lib.ts (Kittybox source code)
indieauth.js AGPL-3.0 indieauth.ts (Kittybox source code)