assistant-ui Cloud

Always consult assistant-ui.com/llms.txt for the latest API.

Assistant Cloud is a hosted service that adds thread persistence, message history, auto-generated titles, message feedback, and file uploads to any React chat UI. One AssistantCloud client backs the assistant-ui runtime, AuiConfig thread integration, and LangGraph Cloud.

Contents

• References | Install | Quick start: useChatRuntime | AuiConfig hosts: AISDKThreads | Migrate from Cloud AI SDK | LangGraph | Message feedback | Authentication | Client API | Environment variables | Common Gotchas | Related Skills

References

• ./references/persistence.md -- the thread, message, file, and run client API in full, verified against source
• ./references/authorization.md -- the three auth modes and direct provider integrations (Clerk, Auth0, Supabase, Firebase)
• ./references/custom-persistence.md -- CloudMessagePersistence and createFormattedPersistence, for a custom ThreadHistoryAdapter backed by cloud message storage
• ./references/auth-integrations.md -- non-cloud auth gating with Auth.js (next-auth), Clerk, and better-auth, plus pairing AssistantCloud with a backend token endpoint

Install