Lemma

Lemma is an open-source workspace designed for AI agents and humans to collaborate as one team. Unlike chat-first tools, it gives every recurring job its own agentic application interface—allowing agents to run background tasks while humans maintain oversight and control.

Highlights

• Task-specific agent apps for expense tracking, research, support triage, and workflow automation
• Integrated tables for data management and file storage for agent memory
• Mixed workflows combining autonomous agent actions with human approval checkpoints
• Multi-channel integrations: Slack, Teams, Gmail, Outlook, Telegram, and WhatsApp
• Run locally for free or use Lemma Cloud for hosted infrastructure
• Support for custom model providers via your own API keys

Lemma is ideal for teams and enterprises that want to automate repetitive processes without sacrificing human oversight. The platform is available as a free, open-source option you can self-host, or as a managed cloud service—making it accessible regardless of infrastructure preference or budget.