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🔌TanStack AI

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TanStack/ai · homepage ↗

🤖 Type-safe, provider-agnostic TypeScript AI SDK for streaming chat, tool calling, agents, and multimodal apps across OpenAI, Anthropic, Gemini, React, Vue, Svelte, and Solid.

⭐ Popular: 3k stars, gaining about 22 a week

View on GitHub ↗

repo profile

language TypeScript
license MIT

momentum

total stars 3k
stars added last week +22
commits / week 10 cooling · -66% vs prior mo
contributors 89
release cadence weekly
last activity today

durability

backing community / independent sponsor-funded (T. Linsley)
openness permissive
bus factor 2 concentrated
top-author share 28% 6 mo

bus factor = how many people it takes to cover more than half the commits (6 months). 1 is a solo project; higher means the work is spread across a team. top-author share is the single busiest author's slice of those commits.

why it's a big deal

  • A provider-agnostic AI SDK from the TanStack team, so moving between OpenAI, Anthropic and Gemini is a config change rather than a rewrite.
  • Brings TanStack's type-safety-first approach to the AI layer: streaming chat, tool calling and agents with end-to-end TypeScript types.
  • Positioned to become the default AI toolkit for the large TanStack ecosystem, meeting React and full-stack developers where they already are.

under the hood

  • Type-safe TypeScript SDK covering streaming chat, tool and function calling, agents and multimodal apps.
  • One interface over adapters for OpenAI, Anthropic and Gemini, shipped as scoped @tanstack/ai-* packages.
  • Includes an Ollama adapter, so the same code can run fully local models alongside hosted providers.

our take from PR#38, 2026-07-15

star history

PR#38 · 3k3k now Oct 2025Jul 2026
  1. PR#38 3k 2026-07-15
  2. now 3k + 40 since first covered

curve is sampled from GitHub's star history, plus our own daily readings since we covered it; the dashed stretch is before we first covered it, the solid line since. figures at coverage are the numbers we printed then (approx.), current count is live.

understory

Deep in the understory, shipping hard, still flying under the radar.

+28 understory score output 84 · clout 56
Aug 2025 Jul 2026
  • output, commits & releases
  • clout, star velocity

output = commits & releases; clout = star velocity, both 0 to 100 monthly indices; the gap where output runs above clout is the understory. The understory →

covered in

  • PR#38 2026-07-15 below the radar

    a type-safe, provider-agnostic AI SDK

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