Vercel AI SDK
TypeScript toolkit for AI applications and agents
Vercel's AI SDK is a TypeScript toolkit that provides text generation, structured output, tool calls and agents through a unified API for many model providers. AI SDK UI offers hooks for chat interfaces in React, Next.js, Vue and Svelte, and telemetry runs on OpenTelemetry. Multiple agents are built with subagents: the parent agent delegates work via a tool, the subagent works with its own context window and returns a result or a summary; this enables parallel research and orchestrator-worker setups. The SDK is open source under Apache-2.0.
Good fit if
Focus: TypeScript and web developers embedding agents directly in web applications
- your project is about Chat and agent features in web apps, Parallel research with subagents or Orchestrator-worker agents
- someone on your team writes code
- you want to get started quickly (learning curve: flat)
Probably not if
- nobody on your team writes code (1/5 for use without developers)
Key figures
- Usable without developers
- 1/5
- Scalability
- 4/5
- Integrations
- 4/5
- Versioning
- 2/5
- Observability
- 3/5
Editorial rating on a scale from 1 to 5. Methodology
Fact sheet
- Category
- Developer
- Type
- TypeScript toolkit for AI applications and agents
- Licence
- Open Source (Apache-2.0)
- Pricing
- Open SourceSDK without license fee (Apache-2.0). Costs arise for the models used at the respective provider and for the chosen hosting.
- Deployment
- Cloud, Self-Hosted, Any
- Models
- OpenAI, Anthropic, Google, Google Vertex, xAI, Mistral, Cohere, DeepSeek, Groq, Hugging Face
- RAG
- Yes
- Multi-Agent
- Yes
- SSO, roles (RBAC)
- SSO no, RBAC no
- Latest version
- 7.0.137 (npm ai, 09.10.2026)
- GitHub stars
- 27,227
Key features
- Unified API for many model providers
- Subagents as tools of the parent agent
- AI SDK UI for chat interfaces
- Streaming and structured output
- Telemetry via OpenTelemetry
Typical use cases
- Chat and agent features in web apps
- Parallel research with subagents
- Orchestrator-worker agents
- Generative user interfaces
Market notes
Changes to Vercel AI SDK by email
We let you know when the status, pricing or license of Vercel AI SDK changes, together with the weekly market notes.
Implementation
Get Vercel AI SDK implemented
Free for you. Partners only pay for requests they accept.
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