Beta

Connect your AI assistant to Alex Legal with MCP

Updated on 5 November 2026

The Alex Legal MCP connector lets you look up your companies' data straight from your AI assistant. Legal details, shareholdings, governance and documents become available in a conversation, so you can find a fact or put together a summary from the data held in Alex.

MCP, short for Model Context Protocol, is the open standard behind this connection. This guide shows how to connect Claude, ChatGPT, Grok or another compatible app. To see what you can ask once you are connected, read Using MCP.

1. Get ready to connect

The MCP connector is in beta. It is available with a paid subscription or during your organisation's trial.

In Alex, open your personal settings, then Connexions IA (AI connections), or go straight to the AI connections page. Copy the server address shown there. For the production platform, it is:

https://app.alexlegal.fr/mcp

You sign in with your own Alex Legal account, in your browser: you review the access being requested, then click Autoriser l'accès (Allow access). No API key and no client secret are needed.

2. Add Alex Legal to your assistant

Pick your app. Menu names can vary with its version, its language and your account's or team's settings.

Claude

Alex Legal is in Claude's connectors directory: there is no address to enter. Connectors are available on every Claude plan, on the web and in the desktop app.

Individual account (Free, Pro, Max)

Open Alex Legal in Claude's connectors directory. You can also go through Customize → Connectors, click + next to Connectors and select Alex Legal.
Click Connect.
Sign in to Alex Legal in the window that opens and click Autoriser l'accès (Allow access).

Team or Enterprise workspace

A workspace Owner first turns Alex Legal on for the team: Organization settings → Connectors, Browse connectors, select Alex Legal, then Add to your team. That gives nobody access yet: each member then connects with their own Alex Legal account from Customize → Connectors.

In a conversation

Click + at the bottom left of the message box (or type /), hover over Connectors and switch Alex Legal on. You can turn it on or off for each conversation.

With Claude Code

In a terminal, add the server:

claude mcp add --transport http alex-legal https://app.alexlegal.fr/mcp

Then, in a Claude Code session, type /mcp and finish signing in in your browser. If you can't open the /mcp panel, use:

claude mcp login alex-legal

Read Claude's instructions.

ChatGPT

Alex Legal is in ChatGPT's Plugins directory: there is no address to enter.

On the web, desktop or mobile

Open Alex Legal in ChatGPT's Plugins directory, or search for "Alex Legal" from Plugins in the sidebar.
Click Install plugin, then Connect if ChatGPT asks.
Sign in to Alex Legal in the window that opens and click Autoriser l'accès (Allow access).

In a conversation, ChatGPT calls on Alex Legal when your request is about it. To pick it yourself, type @ in the message box and select Alex Legal.

Availability depends on your ChatGPT plan and your admin's settings. If the Connect button is greyed out or says Disabled by admin, ask your ChatGPT admin to turn Alex Legal on. Read OpenAI's help on plugins.

With Codex: desktop app, CLI or extension

In the desktop app, open Settings → MCP servers, then Add server. Name the server Alex Legal, select Streamable HTTP and enter https://app.alexlegal.fr/mcp. Save, accept the restart it offers, then use Authenticate to sign in to Alex Legal. In the Codex extension, the same option is under MCP servers in the settings menu.

From the command line:

codex mcp add alex-legal --url https://app.alexlegal.fr/mcp
codex mcp login alex-legal

Finish signing in in the browser. In Codex, /mcp lists the connected servers. Read OpenAI's MCP documentation.

Grok

Connectors are available to every Grok user.

Individual account

Open grok.com/connectors.
Click New Connector, then select Custom.
Enter https://app.alexlegal.fr/mcp as the URL.
Sign in to Alex Legal in the window that opens and allow access.

Grok then discovers what Alex Legal offers and makes it available in your conversations.

Grok Business or Enterprise workspace

An admin first adds the connector for the team: on console.x.ai, select the team, open Grok Business → Connectors, click + Add Connector, choose Other and enter https://app.alexlegal.fr/mcp. Each member then connects their own Alex Legal account from grok.com/connectors.

Read Grok's connector documentation.

Other apps

Your app needs to support remote MCP servers over Streamable HTTP and OAuth authentication. In its connection settings, add a server with these details:

Name: Alex Legal
URL: https://app.alexlegal.fr/mcp
Transport: HTTP / Streamable HTTP
Authentication: OAuth

Then start the connection, sign in to Alex Legal in the browser and allow access.

If no sign-in window opens, check that your app allows OAuth for remote servers. An app that only offers an API key or a local server can't connect to Alex Legal.

3. Check the connection

Start with a simple request:

Use Alex Legal to list the companies I have access to.

Then name the company and the information you are after. Example requests that work with any connected assistant are collected in Using MCP.

4. Stay in control of access

The connector is read-only: your assistant looks up and analyses the data it can reach, without changing any information, document or operation in Alex Legal.

Every connection runs with the rights of the Alex Legal account that signed in: the assistant only sees the organisations, groups and companies you can already open, in organisations with a paid subscription or a trial. Those rights are checked on every request. What it retrieves is passed to the connected assistant so it can answer.

You can withdraw access at any time from Connexions IA → Applications connectées (AI connections → Connected apps): open the app's menu and choose Déconnecter (Disconnect). Disconnecting ends that connection's access to your Alex Legal data immediately. You can also remove the connector in your assistant's settings.