Top Open Source AI Agent Platforms Tools in 2026
A curated collection of the 29 best free and open-source AI Agent Platforms tools in 2026. Compare features, GitHub stars, tech stacks, and self-hosted software.
Suna
Open-source AI command center for your company
Stars20,141Last commit10d agoLicenseOpen SourceParlant
A conversational AI server that manages agent behavior through context-aware guidelines, keeping responses consistent, auditable, and aligned at scale.
Stars18,269Last commit1mo agoLicenseApache-2.0Langflow
Low-code AI builder for agentic and RAG applications
Stars153,727Last commit12d agoLicenseMITEigent
Open source desktop multi-agent workforce
Stars15,139Last commit10d agoLicenseApache-2.0ByteChef
Open-source workflow & AI agent builder
Stars992Last commit10d agoLicenseOpen SourceACI.dev
Outcome Automation as a Service for professional and financial services firms
Stars4,885Last commit3mo agoLicenseApache-2.0
Trigger
Open source platform for AI workflows in TypeScript
Stars16,137Last commit10d agoLicenseApache-2.0Rowy
Low-code backend for Firebase & Google Cloud
Stars6,833Last commit21mo agoLicenseOpen Source
Rivet
Infrastructure for building and deploying AI agents
Stars6,088Last commit11d agoLicenseApache-2.0
Paperclip
Manage AI agents like a business team
Stars79,465Last commit10d agoLicenseMIT
Nango
Connect 900+ APIs for AI agents and products
Stars11,615Last commit10d agoLicenseOpen SourceMultica
Open-source platform that manages coding agents as team members, with task queues, skill libraries, runtime monitoring, and a unified activity feed.
Stars47,955Last commit10d agoLicenseOpen Source
MaxKB
Open-source platform for building enterprise-grade agents
Stars22,625Last commit10d agoLicenseGPL-3.0
LocalAI
Run any AI model locally on any hardware
Stars48,701Last commit10d agoLicenseMIT
LobeChat
AI agent orchestration platform for teams
Stars82,031Last commit10d agoLicenseOpen Source
