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Vercel AI SDK

TypeScript toolkit for AI apps and agents with a unified provider API, streaming, UI hooks and a wrapper for running established agent harnesses.

Harness by Vercel

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Install

From the package registry. Read the repository before you give any tool access to your data.

npm install ai

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About

The AI SDK is a TypeScript toolkit with three main parts: AI SDK Core for generating text, structured objects and tool calls and building agents, AI SDK UI with framework-agnostic hooks for chat and generative interfaces, and AI SDK Harnesses for running agent harnesses such as Claude Code, Codex and Pi through HarnessAgent. It works with React, Next.js, Vue, Svelte and Node.js, and lets developers switch model providers by changing a model string. It installs from npm as ai and is compatible with the Vercel AI Gateway.

Use cases: frontend-development, agent-orchestration

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Fact sheet

Languages
TypeScriptai-sdk.dev
Packages
ai (npm)ai-sdk.dev
Streaming
Yesai-sdk.dev
Model providers
openai, anthropic, google, xai, azure-openai, aws-bedrockai-sdk.dev
Maturity
Stablegithub.com

Facts extracted by Claude Sonnet 5.5 from the linked sources on Oct 24, 2026; reviewed Oct 24, 2026. Wrong fact? Tell us.

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Featured in

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Stars
27,492
Forks
5,428
Open issues
497
Last commit
Oct 23, 2026 (8 days ago)
Last release
Oct 23, 2026 (8 days ago)

From GitHub (fetched Oct 24, 2026).

Details

Packages
npm ai
License
Other
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Chalk Labs is a two-founder AI and growth studio. We build AI agents, CRMs and MVPs for Web3 and AI companies, and have shipped 50+ product and token launches.

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Rahil Jain, Co-founder, Chalk Labs. Ex-Goldman Sachs engineer. You talk to the person who builds it.

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Cite this page

Vercel AI SDK. Agent Mart. https://agentmart.dev/harnesses/vercel-ai-sdk (last updated 2026-10-24)