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Best AI Agents Frameworks

138 ai agents frameworks compared side by side — filter by pricing, open-source availability and API access to find the one that fits your workflow.

Catalog data sourced from AI Agents Directory.

138 agents

FastAgency logo51

Free

FastAgency

The fastest way to bring multi-agent workflows to production.

AI Agents FrameworksOpen source
CrewAI logo47

Free

CrewAI

Platform for Multi AI Agents System for complex task execution.

AI Agents FrameworksOpen source
Bee Agent Framework logo31

Free

Bee Agent Framework

Open-source framework for building, deploying, and serving powerful agentic workflows at scale

AI Agents FrameworksOpen source
Agno logo22

Free

Agno

Build AI agents with Python using a powerful and flexible framework.

AI Agents FrameworksOpen source
Vic SEO Specialist logo21

Paid

Vic SEO Specialist

Automated SEO audits and AI visibility checks for website owners.

AI Agents FrameworksAPI
AutoGen logo19

Free

AutoGen

An Open-Source Programming Framework for Agentic AI

AI Agents FrameworksOpen source
n8n logo17

Freemium

n8n

Workflow automation platform combining AI with business processes. Connect anything to everything.

AI Agents FrameworksOpen source
Agent Zero logo17

Free

Agent Zero

A dynamic, general-purpose framework for creating custom AI Agents.

AI Agents FrameworksOpen source
BaseAI.dev logo16

Free

BaseAI.dev

The easiest open-source way to build Serverless autonomous AI agents with memory and tools.

AI Agents FrameworksOpen source
PraisonAI logo15

Free

PraisonAI

Multi AI Agents Framework to Automate Tasks

AI Agents FrameworksOpen source
Crab logo13

Free

Crab

Framework for building LLM agent benchmark environments in a Python-centric way.

AI Agents FrameworksOpen source
LM-Kit SDK logo12

Freemium

LM-Kit SDK

Build Smarter Apps with Language Models

AI Agents Frameworks
Flowise AI logo10

Free

Flowise AI

An open-source low-code platform for building AI agents.

AI Agents FrameworksOpen source
LangChain logo9

Freemium

LangChain

A framework for building and deploying applications powered by large language models (LLMs).

AI Agents FrameworksOpen source
Griptape logo9

Freemium

Griptape

Framework for creating AI agents with minimal coding.

AI Agents FrameworksOpen source
AGiXT logo9

Free

AGiXT

Automate AI tasks with adaptive memory and plugins

AI Agents FrameworksOpen source
AgentKit logo8

Free

AgentKit

A TypeScript library to create and orchestrate AI Agents.

AI Agents FrameworksOpen source
Portia AI logo8

Freemium

Portia AI

Build agents that are predictable, controllable and authenticated.

AI Agents FrameworksOpen source
AutoGPT logo7

Free

AutoGPT

AI agent that autonomously performs tasks by breaking them down into subtasks.

AI Agents FrameworksOpen source
Burr Framework logo6

Free

Burr Framework

Build applications that make decisions (chatbots, agents, simulations, etc...).

AI Agents FrameworksOpen source
upsonicAI logo6

Free

upsonicAI

Task-oriented AI agent framework for digital workers and vertical AI agents

AI Agents Frameworks
SmolAgents logo5

Free

SmolAgents

Lightweight AI agent development framework for rapid creation of powerful agents

AI Agents FrameworksOpen source
Agent Genesis logo5

Free

Agent Genesis

Build custom RAG flows and AI agents using open-source, copy-paste components.

AI Agents FrameworksOpen source
MetaGPT logo5

Free

MetaGPT

AI-driven multi-agent framework for automated software development and project management

AI Agents FrameworksOpen source
PydanticAI logo5

Free

PydanticAI

Python Agent Framework for building production-grade Generative AI applications

AI Agents FrameworksOpen source
AG2 logo5

Free

AG2

Framework for orchestrating, optimizing, and automating LLM workflows with multi-agent systems.

AI Agents Frameworks
ElizaOS logo4

Free

ElizaOS

Powerful multi-agent simulation framework for creating and managing autonomous AI agents.

AI Agents FrameworksOpen source
Julep logo4

Free

Julep

Framework for creating AI agents that remember past interactions and can perform complex tasks

AI Agents FrameworksOpen source
BAML logo4

Free

BAML

A DSL for building production ready applications powered by LLMs

AI Agents FrameworksOpen source
CAMEL logo4

Free

CAMEL

Multi-agent systems, synthetic data generation, task automation, world simulation.

AI Agents FrameworksOpen source
Agience logo4

Freemium

Agience

Intelligent Agents for Everyone

AI Agents FrameworksOpen source
Mini LLM Flow logo4

Free

Mini LLM Flow

Minimalist LLM Framework in 100 Lines. Enable LLMs to Program Themselves.

AI Agents FrameworksOpen source
InstAgent logo4

Free

InstAgent

Build AI Multi-Agent Systems in Seconds — No Code, Just Ideas!

AI Agents FrameworksOpen source
Semantic Kernel logo4

Free

Semantic Kernel

SDK for integrating and orchestrating AI models with conventional programming languages.

AI Agents FrameworksOpen source
Rig logo3

Free

Rig

Build powerful, modular LLM applications in Rust with unified interfaces and high performance.

AI Agents FrameworksOpen source
NeMo Guardrails logo3

Free

NeMo Guardrails

Toolkit for adding programmable guardrails to LLM-based conversational AI

AI Agents FrameworksOpen source
ChatDev logo3

Free

ChatDev

Virtual software company that operates through various intelligent agents holding different roles

AI Agents FrameworksOpen source
LaVague logo3

Free

LaVague

Large Action Models framework to build AI Web Agents

AI Agents FrameworksOpen source
Lyzr-automata logo3

Free

Lyzr-automata

A low-code multi-agent automation framework

AI Agents FrameworksOpen source
Agentflow logo3

Free

Agentflow

Powerfully simple AI agent framework.

AI Agents FrameworksOpen source
LlamaIndex logo3

Freemium

LlamaIndex

LlamaIndex is the leading data framework for building LLM agents

AI Agents FrameworksOpen source
LiveKit Agents logo3

Freemium

LiveKit Agents

Framework for building real-time, multimodal AI agents

AI Agents FrameworksOpen source
Qauntalogic logo3

Free

Qauntalogic

A ReAct Agent framework that seamlessly integrates with GPT-4, Claude 3.5, and DeepSeek

AI Agents FrameworksOpen source
Multi-GPT logo3

Free

Multi-GPT

An experimental multi-agent system enabling collaboration between specialized AI experts.

AI Agents FrameworksOpen source
Dendrite logo3

Freemium

Dendrite

The world's first developer toolkit that makes any website fully accessible to AI Agents.

AI Agents FrameworksAPI
KaibanJS logo3

Free

KaibanJS

KaibanJS -> Kanban for AI Agents. JavaScript Framework for Building Multi-Agent Systems.

AI Agents FrameworksOpen source
Thynk Forward logo3

Paid

Thynk Forward

Your business. Smarter. Faster.

AI Agents Frameworks
Mirascope logo3

Free

Mirascope

An OSS Python toolkit for building AI agents and apps with abstractions that aren't obstructions.

AI Agents FrameworksOpen source

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