Best Open-source AI Agent Frameworks tools

Explore curated open-source tools in the AI Agent Frameworks category. Compare technologies, see alternatives, and find the right solution for your workflow.

20+ projects · Page 1 of 1

Agno logo

Agno

Fast, private, scalable framework for building multi-agent AI systems

Stars
41,330
License
Apache-2.0
Last commit
8 hours ago
PythonActive
PraisonAI logo

PraisonAI

Build, coordinate, and run multi‑AI agents with low‑code simplicity

Stars
8,502
License
MIT
Last commit
8 hours ago
PythonActive
Microsoft Agent Framework logo

Microsoft Agent Framework

Unified framework for building, orchestrating, and deploying AI agents

Stars
12,278
License
MIT
Last commit
8 hours ago
PythonActive
Kortix logo

Kortix

Build, manage, and train autonomous AI agents with Kortix

Stars
20,009
License
Last commit
9 hours ago
TypeScriptActive
Mastra logo

Mastra

TypeScript framework for building scalable AI agents and workflows

Stars
26,397
License
Last commit
9 hours ago
TypeScriptActive
Pydantic AI logo

Pydantic AI

Build type-safe, observable GenAI agents the FastAPI way

Stars
18,699
License
MIT
Last commit
9 hours ago
PythonActive
LangGraph logo

LangGraph

Orchestrate resilient, stateful language agents with graph‑based workflows

Stars
37,759
License
MIT
Last commit
10 hours ago
PythonActive
Composio logo

Composio

Unified SDKs to empower AI agents with real‑world tools

Stars
29,307
License
MIT
Last commit
10 hours ago
TypeScriptActive
Skyvern logo

Skyvern

AI-driven visual browser automation that adapts to any website

Stars
22,538
License
AGPL-3.0
Last commit
11 hours ago
PythonActive
CrewAI logo

CrewAI

Lightning‑fast Python framework for autonomous multi‑agent automation

Stars
55,901
License
MIT
Last commit
13 hours ago
PythonActive
Agent Browser logo

Agent Browser

Fast CLI for AI-driven headless browser automation

Stars
38,902
License
Apache-2.0
Last commit
20 hours ago
RustActive
Browser Use logo

Browser Use

LLM-driven, stealth-enabled browser automation with cloud scaling

Stars
105,878
License
MIT
Last commit
1 day ago
PythonActive
Claude Code Plugins logo

Claude Code Plugins

Modular AI agents and plugins for end-to-end software development

Stars
38,105
License
MIT
Last commit
2 days ago
PythonActive
Atomic Agents logo

Atomic Agents

Build modular AI agents with predictable, reusable components.

Stars
6,055
License
MIT
Last commit
3 days ago
PythonActive
smolagents logo

smolagents

Run sandboxed code agents with minimal code and any LLM

Stars
28,468
License
Apache-2.0
Last commit
7 days ago
PythonActive
VoltAgent logo

VoltAgent

TypeScript framework for production-ready AI agents with observability

Stars
10,109
License
MIT
Last commit
8 days ago
TypeScriptActive
Letta logo

Letta

Build stateful AI agents with persistent, self‑editing memory

Stars
23,903
License
Apache-2.0
Last commit
18 days ago
PythonActive
Auto Claude logo

Auto Claude

AI-driven multi-agent framework that builds and validates code autonomously

Stars
14,472
License
AGPL-3.0
Last commit
1 month ago
TypeScriptActive
AutoGen logo

AutoGen

Build autonomous multi-agent AI applications with a flexible framework

Stars
59,873
License
CC-BY-4.0
Last commit
3 months ago
PythonStable
Pocket Flow logo

Pocket Flow

Build AI apps with a 100‑line, dependency‑free framework

Stars
11,007
License
MIT
Last commit
3 months ago
PythonStable
SuperAGI logo

SuperAGI

Easily build, manage, and run autonomous AI agents

Stars
17,632
License
MIT
Last commit
1 year ago
PythonDormant