JoinerBuild Experiences, Chat & More

Real-time, multi-user experiences with offline support and AI integration — all running inside Joiner.

Activity Creator

AI-first skill that scaffolds, implements, tests, and deploys a Joiner activity from a natural-language prompt.

Real-time multi-user data sync. Mutations apply instantly, sync in the background, and work offline.

Set up stores, query data, stream AI responses, call tools, and embed child activities — all from your frontend code.

Define schemas, mutators, and server-side actions with platform system tables pre-wired.