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Vercel AI SDK Alternatives

Open-source TypeScript toolkit for building AI applications with streaming, tool calling, and agents

The Vercel AI SDK is a TypeScript toolkit for building AI-powered applications.

Explore 20 alternatives to Vercel AI SDK across 1 category. Each tool listed below shares at least one category with Vercel AI SDK.

🏗️ Frameworks & Stacks

Dify

Easily build and operate generative AI applications. Create Assistants API and GPTs based on any LLMs.

Open Source Free Trial

DSPy

Framework for programming, not prompting, language models with automatic prompt optimization

Open Source

Google ADK

Open-source agent development kit from Google for building multi-agent systems

Open Source Free Trial

Haystack

The Production-Ready Open Source AI Framework.

Open Source

Hugging Face

The open-source AI platform with 500K+ models, inference endpoints, and fine-tuning tools

Open Source Free Trial

Instructor

Structured data extraction from LLMs using Pydantic models with automatic validation and retries

Open Source

LangChain

LangChain gives developers a framework to construct LLM‑powered apps easily.

Open Source Free Trial

LangGraph

Low-level framework for building stateful, long-running AI agents with graph-based orchestration

Open Source Free Trial

Langroid

Multi-agent LLM framework using message-based task delegation inspired by the Actor model

Open Source

LiteLLM

Unified OpenAI-compatible proxy for 100+ LLM providers with cost tracking and load balancing

Open Source Free Trial

LlamaIndex

LlamaIndex is a simple, flexible data framework for connecting custom data sources to large language models.

Open Source

LLM Browser

Enable your AI agents to access any website without worrying about captchas, proxies and anti-bot challenges

Open Source Free Trial

Mastra

TypeScript-first AI framework for building agents, RAG pipelines, and workflows

Open Source Free Trial

Modular

We rebuilt the modern AI software stack, from the ground up, to boost any AI pipeline, on any hardware.

Free Trial

Ollama

Run large language models locally with a single command

Open Source Free Trial

phidata

Build an AI App in minutes using pre-built templates.

Open Source Free Trial

Pydantic AI

Type-safe Python agent framework with Pydantic validation, tool calling, and dependency injection

Open Source

Semantic Kernel

Microsoft's SDK for building and orchestrating AI agents in .NET, Python, and Java

Open Source

Spring AI

Spring framework for building AI-powered Java applications with portable model and vector store abstractions

Open Source

Stagehand

AI-powered browser automation framework with natural language actions, extraction, and observation

Open Source

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