Model-connected feature
Add AI Chat to your React app.
BTST adds streaming APIs, model integration, conversation history, routes, and customizable chat UI while your app controls access and provider costs.
Best for
React teams that already know which AI SDK model provider they want and need chat history, tools, and product UI inside their app.
- Requires
- An AI SDK language model; A database adapter with isolated transaction support for authenticated persistence
- External service boundary
- The adopter-selected AI model provider receives prompts and generates responses
- Ownership boundary
- You select and pay the model provider. Authenticated history stays in your database, and ejected chat pages become editable application code while streaming and data behavior remain packaged.
BTST supplies
- Streaming chat APIs with typed tool, attachment, and lifecycle boundaries
- Conversation and message models for authenticated history
- SSR-aware conversation list and chat routes
- Customizable chat pages, hooks, and prompt UI
You supply
- An AI SDK model provider, credentials, usage policy, and provider billing
- A database adapter with isolated transactions for authenticated history
- Authorization rules for authenticated access, tools, and attachments
- An upload implementation when file attachments are enabled
You own and customize
You select and pay the model provider. Authenticated history stays in your database, and ejected chat pages become editable application code while streaming and data behavior remain packaged.
Compatibility and dependencies
- Maintained integrations
- Next.js 15+ App Router · React Router v7 · TanStack Start
- Requires
- An AI SDK language model; A database adapter with isolated transaction support for authenticated persistence
- External services
- The adopter-selected AI model provider receives prompts and generates responses
From registration to result
The shipped workflow
This is the feature path BTST supplies—not a claim that your app needs no integration work.
Choose a model
Pass an AI SDK model and keep its credentials in your server environment.
Set access
Use authenticated persistence with typed rules or choose explicit stateless public mode.
Stream
Run prompts, tools, and optional attachments through the supplied chat route.
Keep context
Store identity-scoped conversations in your database when authenticated mode is enabled.
Continue your task