Open source multiagent projects
Every project in the registry tagged multiagent, ranked by real GitHub adoption.
Visual builder for AI agents and RAG pipelines
Open-source AI coworker, with memory
Build production-ready AI agents in both Python and Typescript.
Build and deploy AI agents through visual workflows
Related tags
Frequently asked questions
How many open source multiagent projects are there?
This registry tracks 4 projects tagged multiagent, with 178,369 GitHub stars between them. The most-adopted is Langflow at 156,239 stars.
Are these multiagent projects free to use?
Yes — 4 of the 4 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 multiagent 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 multiagent projects still maintained?
4 of the 4 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.