Top 23 multi-agent Open-Source Projects

1. deer-flow

   1 15 70,440 9.9 Python

   An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours.

   

   Project mention: DeerFlow 2.0 – Deep Exploration and Efficient Research Flow | news.ycombinator.com | 2026-05-17

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3. MetaGPT

   2 39 68,492 9.1 Python

   🌟 The Multi-Agent Framework: First AI Software Company, Towards Natural Language Programming

   

   Project mention: Backlog.md – CLI that auto-generates task files (took my Claude success to 95 %) | news.ycombinator.com | 2025-07-06

4. CowAgent

   3 1 45,060 9.7 Python

   Open-source super AI assistant & Agent Harness. Plans tasks, runs tools and skills, autonomously grows with memory and knowledge. Multi-model, multi-channel. Lightweight, extensible, one-line install. (formerly chatgpt-on-wechat)

   

5. AionUi

   4 8 27,715 9.9 TypeScript

   Free, local, open-source 24/7 Cowork app for OpenClaw, Hermes Agent, Claude Code, Codex, OpenCode, Gemini CLI and 20+ more CLI | Customize your assistants | Star if you like it!

   

   Project mention: AionUi: Open-Source AI Cowork Platform for Claude Code, Codex and Gemini | news.ycombinator.com | 2026-05-27

6. agentscope

   5 4 26,238 9.6 Python

   Build and run agents you can see, understand and trust.

   

   Project mention: All Data and AI Weekly #207: 15 Sept 2025 | dev.to | 2025-09-15

   GitHub Link: https://github.com/agentscope-ai/agentscope Summary: Agentscope is an agent-oriented programming library that makes it easier to build LLM applications. It's designed to be "developer-centric" with features like asynchronous execution, parallel tool calls, and real-time steering. It offers a transparent approach where prompt engineering and API invocation are fully visible and controllable. Why it's important: Agentscope, along with its related libraries like agentscope-runtime and agentscope-studio, provides a comprehensive toolkit for not only developing but also deploying and visualizing agent-based applications.

7. agents-towards-production

   6 2 20,597 9.1 Jupyter Notebook

   End-to-end, code-first tutorials for building production-grade GenAI agents. From prototype to enterprise deployment.

   

   Project mention: Show HN: GibRAM an in-memory ephemeral GraphRAG runtime for retrieval | news.ycombinator.com | 2026-01-17

   GraphRAG's approach certainly makes sense for regulation-heavy documents, where interconnected references can be critical for retrieval quality. The challenge you mentioned about separate systems for graph storage and vector indexing resonates with what we've seen in the field. In practice, this separation often adds unnecessary complexity for ephemeral analysis tasks. One thing we've explored is using a dual-memory architecture, which might be relevant here even in an in-memory context. It allows you to effectively manage recent context and longer-term semantic connections without the overhead of persistent storage. If you're interested in seeing how this approach could be integrated into production systems, I wrote up some patterns that might be useful: https://github.com/NirDiamant/agents-towards-production.

8. adk-python

   7 57 19,995 9.9 Python

   An open-source, code-first Python toolkit for building, evaluating, and deploying sophisticated AI agents with flexibility and control.

   

   Project mention: I Built an Autonomous AI Agent with Google ADK + Gemini 2.0 Flash That Spots Trends and Drafts Dev.to Articles for Me | dev.to | 2026-06-02

   Google ADK. (Check out the Google ADK Docs if you need help installing).

9. nanobrowser

   8 11 13,088 9.4 TypeScript

   Open-Source Chrome extension for AI-powered web automation. Run multi-agent workflows using your own LLM API key. Alternative to OpenAI Operator.

   

   Project mention: ChatGPT Atlas | news.ycombinator.com | 2025-10-21

   Try search on a browser extension store for "AI Chat website" or similar. Also you can check out https://github.com/nanobrowser/nanobrowser.

10. agent-framework

    9 17 11,058 9.9 Python

    A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.

    

    Project mention: Microsoft Foundry Just Added CI/CD for AI Agents. Here's What That Actually Changes. | dev.to | 2026-05-25

    For teams already using Microsoft Agent Framework, the v1.0 release is now stable across Python and .NET, unifying the enterprise-grade foundations of Semantic Kernel with the multi-agent orchestration from AutoGen. It ships with native MCP, A2A, and OpenAPI support out of the box.

11. PraisonAI

    10 3 8,036 9.9 Python

    PraisonAI 🦞 — Hire a 24/7 AI Workforce. Stop writing boilerplate and start shipping autonomous self-improving agents that research, plan, code, and execute tasks. Deployed in 5 lines of code with built-in memory, RAG, and support for 100+ LLMs.

    

12. agent-orchestrator

    11 4 7,404 9.9 TypeScript

    Agentic orchestrator for parallel coding agents — plans tasks, spawns agents, and autonomously handles CI fixes, merge conflicts, and code reviews.

    

    Project mention: Dynamic Workflows in Claude Code | news.ycombinator.com | 2026-05-28

13. openagent

    12 7 5,150 9.8 Go

    ⚡️next-generation personal AI assistant powered by LLM, RAG and agent loops, supporting computer-use, browser-use and coding agent, demo: https://demo.openagentai.org

    

    Project mention: I Built a Single-File AI Agent in Go — Zero Dependencies, Double-Click to Run | dev.to | 2026-05-18

    GitHub: github.com/the-open-agent/openagent ⭐

14. solace-agent-mesh

    13 2 4,784 9.9 Python

    An event-driven framework designed to build and orchestrate multi-agent AI systems. It enables seamless integration of AI agents with real-world data sources and systems, facilitating complex, multi-step workflows.

    

    Project mention: Ditch the Monolith: Build Scalable AI Teams with Solace Agent Mesh | dev.to | 2025-10-10

    View the Project on GitHub

15. ag2

    14 9 4,638 9.6 Python

    AG2 (formerly AutoGen): The Open-Source AgentOS.Join us at: https://discord.gg/sNGSwQME3x

    

    Project mention: Give Your AG2 Agents a UI with AG‑UI and CopilotKit | dev.to | 2026-02-26

    AG2 (formerly AutoGen) changes that. It provides a shared runtime where specialized agents with defined roles, tools and conversation patterns can collaborate as one coordinated team across models and even frameworks.

16. awesome-openclaw-agents

    15 1 3,517 8.4 HTML

    162 production-ready AI agent templates for OpenClaw. SOUL.md configs across 19 categories. Submit yours!

    

    Project mention: 📬 Claude Code Finds 500 Zero-Days, Meta Redefines "Open," CISA Deadline Hits | dev.to | 2026-04-08

    Source: GitHub | GitHub (awesome-openclaw-agents) | DEV Community

17. rlcard

    16 5 3,429 2.6 Python

    Reinforcement Learning / AI Bots in Card (Poker) Games - Blackjack, Leduc, Texas, DouDizhu, Mahjong, UNO.

    

18. goclaw

    17 3 3,223 9.1 Go

    GoClaw - GoClaw is OpenClaw rebuilt in Go — with multi-tenant isolation, 5-layer security, and native concurrency. Deploy AI agent teams at scale without compromising on safety.

    

    Project mention: 🔮 Hermes Agent 🤖: The Self-Improving Agent Framework — and How It Compares to OpenClaw & GoClaw 📊 | dev.to | 2026-05-18

    ⚔️ How it compares with two adjacent open-source projects: OpenClaw and GoClaw — when to pick which

19. agentUniverse

    18 1 2,264 9.1 Python

    agentUniverse is a LLM multi-agent framework that allows developers to easily build multi-agent applications.

    

20. gym-pybullet-drones

    19 4 2,035 7.4 Python

    PyBullet Gymnasium environments for single and multi-agent reinforcement learning of quadcopter control

    

21. on-policy

    20 12 1,970 4.2 Python

    This is the official implementation of Multi-Agent PPO (MAPPO).

    

22. DreamServer

    21 5 1,896 9.8 Shell

    Turn your PC, Mac, or Linux box into an AI server. LLM inference, chat UI, voice, agents, workflows, RAG, and image generation.

    

    Project mention: Turn your PC, Mac, or Linux box into an AI server | news.ycombinator.com | 2026-05-31

23. awesome_ai_agents

    22 1 1,797 6.9

    🤖 A comprehensive list of 1,500+ resources and tools related to AI agents.

    

24. MAgent

    23 2 1,761 0.0 Python

    A Platform for Many-Agent Reinforcement Learning

    

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