Vercel AI SDK
Free open-source TypeScript toolkit for building AI-powered applications with a unified API supporting 15+ providers including OpenAI, Anthropic, Google, and more. Created by the makers of Next.js for seamless AI integration.
About this tool
Overview
The Vercel AI SDK is a free, open-source TypeScript toolkit that simplifies building AI applications by providing a unified API to interact with various large language models. Created by the team behind Next.js.
Features
- Unified API: Single interface for 15+ LLM providers
- Provider Support: OpenAI, Anthropic, Google, Azure OpenAI, Bedrock, Cohere, Mistral, Groq, and more
- TypeScript-First: Built for type safety and developer experience
- Streaming Support: Built-in streaming responses
- React Integration: Hooks and components for React applications
- AI Gateway: Vercel AI Gateway for unified access
- Reasoning Support: Claude Opus 4 and Sonnet 4 reasoning capabilities
- Web Search: Provider-defined web search tools
Anthropic Claude Integration
Supports Claude models with thinking/reasoning features, effort levels (high/medium/low), and provider-defined web search tools. Use model strings like 'anthropic/claude-opus-4.5'.
Use Cases
- Next.js AI applications
- Multi-provider AI applications
- Streaming chat interfaces
- AI-powered web applications
- Production AI products
Integration
Seamless integration with Next.js, React, and other JavaScript frameworks. Works with vector databases for RAG applications.
Pricing
Free and open-source. Pay only for underlying LLM API usage.
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