Agent frameworks

PraisonAI

Low-code multi-agent framework with handoffs and workflow patterns

VoltAgent

Open-source TypeScript agent framework with observability console

CopilotKit

Frontend stack for agentic applications and generative UI

elizaOS

TypeScript framework and product stack for autonomous agents

ChatDev

Zero-code multi-agent platform born from agent software companies

Atomic Agents

Modular, schema-first framework for predictable agent pipelines

AP✓ Attested

Apache Burr

State machine framework for stateful AI applications

BeeAI Framework

Linux Foundation-hosted toolkit for agents in Python and TypeScript

AG✓ Attested

AgentKit

Inngest's TypeScript framework for multi-agent systems with tools

Pipecat

Open-source framework for voice agents and realtime multimodal AI

LiveKit Agents

Realtime framework for voice, video, and physical AI agents

Langflow

Visual low-code builder for AI agents and MCP servers

Agent frameworksFreemium

Dify

Low-code platform for production agentic workflows and RAG

Agent frameworksFreemium

AutoGPT

Platform for building, deploying, and running autonomous agents

Griptape

Python framework for secure, structured AI agent workflows

Agent Squad

Lightweight orchestrator that routes queries across multiple AI agents

Strands Agents

AWS-backed model-driven SDK for production agents

AgentScope

Production-ready agent framework with ReAct loops and sandboxed tooling

MetaGPT

Multi-agent framework that simulates a software company

CAMEL

Multi-agent research framework for studying agent scaling laws

Letta

Platform for stateful agents with self-editing memory

Agno

Python framework and runtime for building and operating agent platforms

DSPy

Framework for programming, not prompting, language models

AI SDK

Vercel's provider-agnostic TypeScript toolkit for AI apps and agents

Mastra

TypeScript framework for AI agents and graph-based workflows

Haystack

Open-source AI orchestration framework for production-grade agents and RAG

LlamaIndex

Framework for agentic applications over data and documents

smolagents

Hugging Face's minimal library for code-writing agents

Pydantic AI

Type-safe Python agent framework from the Pydantic team

Claude Agent SDK

Anthropic's SDK for building agents on the Claude Code harness

Agent Development Kit (ADK)

Google's open-source framework for building and deploying agents at scale

OP✓ Attested

OpenAI Agents SDK

OpenAI's lightweight SDK for agents, handoffs, and guardrails

Semantic Kernel

Model-agnostic SDK for embedding AI agents into applications

Microsoft Agent Framework

Microsoft's unified framework for production AI agents in Python and .NET

AG2

Community-driven agent framework continuing the original AutoGen line

AU✓ Attested

AutoGen

Microsoft's framework for conversational multi-agent AI systems

CrewAI

Python framework for orchestrating role-based multi-agent crews

LangChain

Framework for building agents and LLM-powered applications

LangGraph

Low-level orchestration framework and runtime for stateful AI agents