Browse free open source Multi-Agent Systems and projects below. Use the toggles on the left to filter open source Multi-Agent Systems by OS, license, language, programming language, and project status.
Agentic orchestrator for parallel coding agents
Harness LLMs with Multi-Agent Programming
A framework for the creation of autonomous agent services
agentUniverse is a LLM multi-agent framework
PraisonAI application combines AutoGen and CrewAI or similar framework
A framework for autonomous economic agent (AEA) development
Finding the Scaling Law of Agents. A multi-agent framework
JS-native framework for building and managing multi-agent systems
A lightweight, powerful framework for multi-agent workflows
No-code multi-agent framework to build LLM Agents, workflows
VMAS is a vectorized differentiable simulator
Designed to facilitate the deployment of multiple LLM-based agents
A framework for open autonomous economic agent (AEA) development
Build high-performance AI models with modular building blocks
Extensible AGI Framework
A fast and lightweight framework for creating decentralized agents
Multi agent system for AI-driven software development
SwarmZero's SDK for building AI agents, swarms of agents and much more
The Multi-Agent Framework
MuA multi-agent reinforcement learning environment
An LLM-based Multi-agent Framework of Web Search Engine
An Autonomous LLM Agent for Complex Task Solving
AI Multi-Agent Framework in .NET
Enterprise AI Agent Orchestration & Governance Platform.
Open source multi-agent systems are collections of intelligent agents that work together to complete tasks, solve problems, and coordinate decisions across shared workflows. Each agent is typically designed with a specific responsibility, allowing the overall system to divide complex objectives into manageable activities. Because the underlying source code is publicly available, organizations can examine how the system operates, modify capabilities, and tailor deployments to meet operational requirements. This flexibility has made open source multi-agent systems an attractive option for businesses seeking greater control over AI-driven automation.
These systems are used across a wide range of industries to support research, customer service, business operations, software development, data analysis, and process orchestration. Agents can exchange information, assign work to one another, and collaborate to achieve goals that would be difficult for a single agent to accomplish efficiently. Organizations can also integrate these systems with existing applications, databases, APIs, and cloud environments to extend automation across multiple business functions while maintaining consistent workflows.
As AI adoption continues to expand, open source multi-agent systems are becoming increasingly valuable for organizations looking to build scalable and adaptable solutions. Their modular architecture allows new agents, capabilities, and workflows to be introduced without redesigning the entire environment. With active community contributions, ongoing innovation, and broad customization opportunities, these systems provide a practical foundation for businesses that want to develop advanced AI solutions while maintaining transparency and operational flexibility.
The cost of open source multi-agent systems can vary widely depending on deployment requirements, infrastructure, and the level of customization needed. While the underlying open source technology is often available without licensing fees, organizations should still budget for implementation, configuration, testing, and ongoing maintenance. Small teams with in-house technical expertise may deploy these systems at a relatively low cost, whereas larger organizations with complex workflows may require a more significant investment in infrastructure and development resources.
Additional expenses may include cloud computing, storage, monitoring, security, staff training, and integration with existing business tools. Organizations that require advanced capabilities, high availability, or enterprise-grade support may also choose to purchase commercial support services from third-party providers. Evaluating both upfront and long-term operational costs helps businesses determine the total investment required to successfully deploy and maintain open source multi-agent systems.
Open source multi-agent systems can integrate with customer relationship management platforms, enterprise resource planning solutions, project management tools, communication platforms, data warehouses, analytics platforms, cloud infrastructure services, workflow automation tools, identity and access management solutions, and database platforms. They can also connect with application programming interfaces, messaging services, knowledge management platforms, document management systems, monitoring tools, and business intelligence solutions.
These integrations allow agents to exchange information, automate business processes, coordinate tasks, retrieve organizational knowledge, monitor operations, and generate insights across multiple business functions. Many organizations also connect multi-agent systems with machine learning platforms, search technologies, and collaboration tools to improve decision-making and streamline workflows. Selecting integrations should depend on security requirements, scalability goals, data accessibility, and compatibility with existing technology investments.
Selecting the right open source multi-agent systems starts with identifying the goals the system must achieve and the complexity of the workflows it will support. Consider whether it is intended for research, automation, customer interactions, data processing, or collaborative decision-making, since different options emphasize different strengths.
Evaluate how well the system supports scalability, interoperability, and customization. Review available documentation, community activity, update frequency, and licensing terms to understand long-term viability. Integration capabilities are equally important, especially if the system must connect with business applications, cloud services, databases, APIs, or AI models.
Performance, security, and deployment flexibility should also influence your decision. Determine whether the system can operate on your preferred infrastructure, supports monitoring and debugging, and includes tools for managing multiple agents efficiently. Testing several options with realistic workloads before making a final decision helps confirm that the chosen system meets technical requirements, operational expectations, and future growth plans.