Open source multi-agent-systems projects

Every project in the registry tagged multi-agent-systems, ranked by real GitHub adoption.

projects 3 combined stars ★ 18K refresh nightly
01 Eigent ★ 15K

Desktop multi-agent workforce for automating real tasks

last push12 hours ago languageTypeScript licenseApache-2.0
02 mantis ★ 1.6K

A modular, stack-agnostic toolkit of security review skills for AI coding agents to autonomously find, reproduce, and patch vulnerabilities.

last push5 days ago languagePython licenseApache-2.0
03 KaibanJS ★ 1.5K

KaibanJS is a JavaScript-native framework for building and managing multi-agent systems with a Kanban-inspired approach.

last push4 months ago languageTypeScript licenseMIT

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Frequently asked questions

How many open source multi-agent-systems projects are there?

This registry tracks 3 projects tagged multi-agent-systems, with 18,353 GitHub stars between them. The most-adopted is Eigent at 15,301 stars.

Are these multi-agent-systems projects free to use?

Yes — 3 of the 3 carry an explicit open-source licence across 2 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which multi-agent-systems project should I choose?

The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.

Are these multi-agent-systems projects still maintained?

2 of the 3 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.