Fetch Kaikki is a simple TypeScript client + response types for Wiktionary data fetched from Kaikki.org. The data was generated with Tatu Ylonen's wiktextract.
The response type strcture (see types.ts) is based on wiktextract's documentation, as well as personal observations and corrections. Feel free to suggest edits!
This client is used by my custom dictionary app Dictus.
Note: as of now, you need to disable cross-origin restrictions to fetch Wiktionary data (from Kaikki.org), since the website doesn't set Access-Control-Allow-Origin. A workaround is in development.