Scales efficient language processing with open-source accessibility.
357M visits/mo+1%#2 Coding & Development
AI SDK
Open-source TypeScript SDK for building LLM apps and agents with a unified API, streaming, tool calling, and 100+ model support.
$0.01Starting price
392KMonthly visits
43Popularity
About AI SDK
AI SDK is an open-source TypeScript toolkit designed for developers building AI-powered web applications and agents. It supports frameworks like React, Next.js, Vue, Svelte, and Node.js, providing a consistent API to access over 100 models and enabling multi-model workflows. The SDK enables streaming generation with streamText for real-time UI updates and chat-style experiences. It supports structured outputs using generateObject with Zod schemas for validated typed JSON responses. Tool calling and function execution allow for agentic workflows, while fallbacks enhance reliability. The tool is framework-agnostic, making it easier to switch providers and standardize LLM integration without rewriting application logic. Developed by Vercel, the creators of Next.js, it simplifies the process of integrating LLMs into applications while maintaining flexibility and scalability.
Key features
- Provider-agnostic model access with 100+ supported models
- Streaming generation for real-time UI updates
- Structured outputs with Zod schema validation
- Tool calling and function execution for agentic workflows
- Multi-model workflows and fallbacks for reliability
- Framework-agnostic integration with React, Next.js, Vue, Svelte, and Node.js
- Unified API for consistent LLM integration
- Open-source and free to use
- Developed by Vercel
Use cases
- Building AI-powered web applications
- Creating chatbots and agentic workflows
- Developing AI features with structured outputs
Pros
- Supports over 100 models across multiple providers with a unified API
- Enables real-time streaming responses for dynamic UI updates
- Provides structured output generation using Zod schemas for validated JSON
- Includes built-in fallbacks and reliability features for production use
- Offers framework-agnostic integration with React, Next.js, Vue, Svelte, and Node.js
Cons
- Requires familiarity with TypeScript and modern JavaScript frameworks
- Beta status for Python SDK may limit stability for some use cases
- Multi-provider switching may introduce complexity in provider-specific configurations
Frequently asked questions about AI SDK
What is the AI SDK?
The AI SDK is an open-source TypeScript toolkit for building AI-powered applications and agents. It provides a unified API for text generation, structured outputs, tool calling, and streaming, supporting frameworks like React, Next.js, Vue, Svelte, and Node.js.
Who should use the AI SDK?
The AI SDK is designed for developers building AI-native applications, chatbots, agents, or workflows. It suits both frontend and backend use cases, particularly those requiring multi-model support, streaming, or structured outputs.
How does the AI SDK handle multiple AI providers?
The AI SDK supports over 100 models across multiple providers and allows switching providers with minimal code changes. It also integrates with Vercel AI Gateway for unified access without managing multiple API keys.
Can the AI SDK be used for real-time applications?
Yes, the AI SDK includes built-in streaming capabilities for real-time responses, enabling chat-style experiences and live UI updates without custom parsing.
Does the AI SDK support structured outputs?
Yes, the AI SDK supports structured outputs using Zod schemas with the generateObject function, allowing validated typed JSON responses for applications requiring data consistency.
How do I get started with the AI SDK?
You can start by installing the AI SDK via npm and following the provided templates or recipes. The documentation offers step-by-step guides for building chatbots, Slackbots, or SQL agents.
AI SDK traffic & engagement
ai-sdk.dev · third-party estimates from Similarweb
Data as of Sep 2026Full AI website ranking →
Monthly visits · Sep 2026392K-15.8% MoM12-month high 556K (Jun 2026)
Rank among AI websites#893▼ 80 vs last monthof 8,652 tools on aitoolnavio™
Top marketUnited States17%Top 5 countries bring 39% of visits
Average visit1m 5sLonger than 63% of AI sites
Pages per visit2.88More than 76% of AI sites
Bounce rate45%Leave after one page · lower is better
Traffic trend
Last 4 months · grows by one month every month
- Jun 2026556K
- Jul 2026532K−4.2%
- Aug 2026466K−12.5%
- Sep 2026392K−15.8%
Top countries
Share of visits · estimated visits
Other countries: 61.3%
Visits sent by AI assistants
How people reach this site from other AI tools
2.3K a month · 0.6% of all visits
Compared with similar tools
Coding & Development · Sep 2026
Traffic figures are third-party estimates, good for scale and trends; they can differ from a company's own numbers. Updated monthly.
