A powerful, type-safe AI SDK for building AI-powered applications.
- Provider-agnostic adapters (OpenAI, Anthropic, Gemini, Ollama, etc.)
- Multimodal content support - Send images, audio, video, and documents
- Chat completion, streaming, and agent loop strategies
- Headless chat state management with adapters (SSE, HTTP stream, custom)
- Isomorphic type-safe tools with server/client execution
- Enhanced integration with TanStack Start - Share implementations between AI tools and server functions
TanStack AI works with any framework (Next.js, Express, Remix, etc.).
With TanStack Start, you get a bonus: share implementations between AI tools and server functions with createServerFnTool:
import { createServerFnTool } from '@tanstack/ai-react'
// Define once, get AI tool AND server function (TanStack Start only)
const getProducts = createServerFnTool({
name: 'getProducts',
inputSchema: z.object({ query: z.string() }),
execute: async ({ query }) => db.products.search(query),
})
// Use in AI chat
chat({ tools: [getProducts.server] })
// Call directly from components (no API endpoint needed!)
const products = await getProducts.serverFn({ query: 'laptop' })No duplicate logic, full type safety, automatic validation. The serverFn feature requires TanStack Start. See docs for details.
- We welcome issues and pull requests!
- Participate in GitHub discussions
- Chat with the community on Discord
- See CONTRIBUTING.md for setup instructions
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We're looking for TanStack AI Partners to join our mission! Partner with us to push the boundaries of TanStack AI and build amazing things together.
LET'S CHAT- TanStack Config – Tooling for JS/TS packages
- TanStack DB – Reactive sync client store
- TanStack Devtools – Unified devtools panel
- TanStack Form – Type‑safe form state
- TanStack Pacer – Debouncing, throttling, batching
- TanStack Query – Async state & caching
- TanStack Ranger – Range & slider primitives
- TanStack Router – Type‑safe routing, caching & URL state
- TanStack Start – Full‑stack SSR & streaming
- TanStack Store – Reactive data store
- TanStack Table – Headless datagrids
- TanStack Virtual – Virtualized rendering
… and more at TanStack.com »