Six steps, about a minute of work. One subscription applies across all environments.
Add the connector in “Skills and connectors” as a custom MCP server: two form fields and sign-in via Telegram or password. The required interface element is marked in each screenshot.
| What is required | Address (URL) |
|---|---|
| All paid databases, including the districts | https://mcp.casus.legal/one/mcp |
Sign in to your account at grok.com. In the left panel, click “Skills and connectors” under “Automations.”
The catalog will open. Go to the tab “Connectors” and click the button “New connector” in the top-right corner.
The Gmail, Google Drive, GitHub and other service cards in the “Recommended” list are xAI’s ready-made integrations. CasusLegal is connected as a custom server.
The first item in the window that opens is “Custom settings” labelled “Add your own custom connector.” Click it: the ready-made integrations are listed below and are not needed here.
The form consists of two fields.
Name — database name using Latin characters only: CasusLegal. The screenshot shows the IP Court database being connected, which is why it says CasusLegal SIP.
Server URL — https://mcp.casus.legal/one/mcp
This is a single address: it opens all the databases you have paid for, and automatically selects the appropriate AI model based on the subject of the question. You no longer need to choose the database URL or worry about entering the wrong one.
If you need a connector for a a single database, there are separate URLs as well: “Higher Courts” — https://mcp.casus.legal/mcp, the IP Court — https://sip.casus.legal/mcp, KAS — https://kas.casus.legal/mcp, KUD — https://kud.casus.legal/mcp. In that case, enter the URL of the database you actually paid for: connecting with someone else’s URL will work, but the connector will respond “subscription inactive or expired.” You do not need to keep the unified URL and separate URLs simultaneously: the AI model will see two identical sets of tools and search twice.
Click “Add connector”.
A sign-in window will open on the service’s side. It is easier to click “Sign in via Telegram”: the account will be created automatically if you do not already have one. The second option is the connector access password from your personal account.
Unlike Claude, a connector in Grok is enabled for a specific request. In a new chat, click «+» in the input bar, hover over “Connectors” and switch the toggle next to the required database to “on.”
The same menu also contains “Add connector” and “Manage connectors” — a quick way to connect the next database.
You can test that it works with a substantive query, for example: “Find Supreme Court of the Russian Federation case law on reducing a penalty under Article 333 of the Civil Code of the Russian Federation.” The response should contain the particulars of the judicial acts, with links to the full texts.
Each database is connected through a separate connector: repeat steps 2–5 for the required address.
| Database | Name (Name) | Address (URL) |
|---|---|---|
| All subscribed databases at once | CasusLegal | https://mcp.casus.legal/one/mcp |
| Commercial cassation districts (all) | CasusLegal Okruga | https://mcp.casus.legal/okrug/mcp |
| Higher courts: Constitutional Court · Supreme Court · Supreme Commercial Court | CasusLegal | https://mcp.casus.legal/mcp |
| Intellectual Property Court (IP Court) | CasusLegal SIP | https://sip.casus.legal/mcp |
| Administrative cases (KAS · Judicial Chamber for Administrative Cases of the Supreme Court of the Russian Federation) | CasusLegal KAS | https://kas.casus.legal/mcp |
| Criminal cases (KUD · Judicial Chamber for Criminal Cases of the Supreme Court of the Russian Federation) | CasusLegal KUD | https://kud.casus.legal/mcp |
Check the toggle: in Grok, the connector is enabled through the “+” menu → “Connectors” and applies to the current chat. If the toggle is off, the request will be sent without querying the database.
The second reason is a Cyrillic name. Internal tool identifiers cannot be generated from a Russian-language name. Delete the connector and create it again using the Latin-character name from the table above.
The sign-in page opens in a separate browser window. If it closed prematurely or was blocked, repeat the connection process through “Manage connectors.”
The connector access password is set in your account and is different from signing in through Telegram.
This is what an incomplete sign-in looks like: the authorization window opened, but Grok did not receive a response from it and displayed a generic error. The subscription and the server itself are not the cause; adding the connector again without making changes will produce the same result.
Add the connector again and, in the sign-in window, be sure to click “Sign in with Telegram” or enter the connector access password and click “Sign in.” Then wait for the browser to return you automatically to grok.com: there is no need to close the window manually.
A pop-up blocker often suppresses the sign-in window. In Safari: “Settings” → “Websites” → “Pop-up Windows” → select “Allow” for grok.com; in Chrome, permission is offered through the icon on the right side of the address bar. Do not switch networks between opening the window and clicking “Sign in”: this breaks the sign-in session that has already started.
Open the “Connectors” tab in your account and check the subscription status for the required database. The introductory free requests in the web chat and Telegram bot do not apply to the connector.
Repeat steps 2–5 for each address, changing the name and URL. There is still only one subscription, and it works in all environments at once. Multiple connectors can be enabled in the chat simultaneously, as shown in the screenshot for step six.
