Vercel AI SDK
Open-source TypeScript toolkit for building AI apps with streaming UI support.
About Vercel AI SDK
Open-source TypeScript toolkit for building AI-powered applications. Provides unified API for working with multiple LLM providers, streaming UI components, and tools for building chatbots and generative interfaces.
Key Features
- Multi-provider LLM support
- Streaming UI
- React/Next.js integration
- Tool calling
- Structured output
- Edge runtime support
Pricing
free
Free and open source. LLM provider costs apply separately.
Pros
- Free and open source
- Great developer experience
- Multi-provider support
- Excellent documentation
Cons
- JavaScript/TypeScript only
- Vercel ecosystem focused
- Requires own API keys