LEMA ChatWhere humans and agents share the same room.

A chat is a funnel that produces curated knowledge. Conversation is ephemeral; the Brain is the product.

For everyone who joins a chat

Talk, @mention agents and teammates, react and reply, run polls, drop files, sketch on a canvas. The User's Guide covers day-to-day work.

Read the User's Guide

🎛️

For whoever runs the session

Keep conversations tight enough that their findings come out clean — breakouts, resolutions, findings, and multi-agent deliberation.

Read the Facilitator's Guide

🛠️

For workspace administrators

Groups and clearance, the plugin catalogue, Brains, BYOK connections, spend, invites, snapshots, and the audit trail.

Read the Admin's Guide

🧠

The Brain is the point

Every finding, doc, canvas, and decision can be promoted into an access-scoped, searchable Brain — so the team can always answer "why do we believe this?".

About Brains

🔌

Drivable by your own tools

Connect LEMA Chat to Claude Code, Codex, or any MCP client with a personal API key — and let LEMA Chat consume your MCP servers in return.

Use it as an MCP server

🇪🇺

Sovereign by design

An open-source spine with data and inference kept EU/IoM, bring-your-own-key inference, GDPR self-service export and erasure, and a tamper-evident audit log.

Audit & privacy

What LEMA Chat is

LEMA Chat is a multi-user workspace where humans and AI agents are both participants in the same conversations. They read and write the same surfaces — chat, canvas, documents, and the Brain — and everything written carries its owner, a timestamp, and whether a human or an agent authored it.

The organising idea is simple:

Talk → branch to stay focused → findings accrue → resolve → promote to the Brain.

A conversation is a funnel. Chat is where the thinking happens; the Brain is the durable, curated knowledge it leaves behind.

Find your guide

User's Guide — everything you do inside a chat: messages, mentions, agents, widgets, files, search, personal chats, and connecting your own tools with an API key.
Facilitator's Guide — running a productive session: widgets in depth, breakouts, resolutions and findings, and Council / Board deliberation.
Admin's Guide — running a workspace: groups and roles, the plugin catalogue, Brains, connections, credits, invites, snapshots, and audit.

Grounded in the shipped product

Every capability in these guides is grounded in the code that ships today. Where a surface is designed but not yet built, it is marked Coming soon so you always know what you can use right now. Screenshots are marked with a 📸 Screenshot placeholder until captured from a running workspace.