Louis
An open-source legal AI workbench you can host yourself.
An open-source project by Stephane Boghossian
What It Is
A workbench you can host yourself: a chat assistant, a document workspace, redlining, a clause library and a risk scanner. It also ships an MCP server.
Why It Was Built
Many legal teams cannot send client data through an intermediary. Louis tests how far a self-hosted workbench with your own model keys can go for solo practitioners, in-house teams and boutique firms.
How It Works
- A web app for the interface and an API server behind it, with Supabase for sign-in and data.
- Files live in any S3-compatible bucket.
- You pick the model per message from Claude, Gemini or OpenAI, and your own API keys override the server defaults.
- An MCP server exposes the calculators, the clause and citation lookups and the risk scanner to any MCP-aware AI client.
Status
Open Source
The code is public and open to read.
Build Details
- Built With
- Next.js, Express, Supabase
- Models
- Claude, Gemini and OpenAI, with your own API keys