Open source
Strands Agents
Open source toolkit for production AI agents in Python and TypeScript
Agent FrameworksAWS open source agent SDK
Alternatives to Vercel AI SDK
12 tools like Vercel AI SDK, chosen by what they do. About Vercel AI SDK
Open source
Genkit
Open source toolkit from Google for building AI apps and agents
Agent FrameworksFull stack AI app framework
Open source
Semantic Kernel
Microsoft SDK for AI agents in C#, Python and Java
Agent FrameworksMicrosoft AI orchestration SDK
Curated
Pydantic AI
Type-safe Python agent framework with many model providers
Agent FrameworksType safe Python agents
Open source
VoltAgent
TypeScript framework for AI agents with built-in observability
Agent FrameworksTypeScript AI agent framework
Open source
OpenAI Agents SDK
Lightweight Python SDK for agents, handoffs and guardrails
Agent FrameworksOpenAI lightweight agent SDK
Open source
Agno
Platform and framework for building agent teams in your own cloud
Agent FrameworksBuild and run agent teams
Open source
AutoGen
Microsoft's open source framework for building multi-agent AI apps
Agent FrameworksMicrosoft multi-agent toolkit
Curated
Mastra
TypeScript framework for agents with tools, memory and workflows
Agent FrameworksTypeScript agent framework
Open source
Instructor
Library for getting structured, validated data from LLM output
Agent FrameworksStructured outputs from LLMs
Open source
Mem0
Memory layer that helps AI apps remember users across sessions
Agent FrameworksMemory layer for AI agents
Open source
Google Agent Development Kit
Open source framework for multi-agent systems in several languages
Agent FrameworksGoogle Agent Development Kit