Open account, the tab “Connectors”, block “Other environments” and click “Issue token”. A token of the form vasrf_conn_… is displayed once, so copy it immediately. Only its hash is stored in the database.

The token remains valid while the subscription is active and opens all paid databases. It does not disrupt already configured Claude and ChatGPT connections; existing connections continue to work with their own tokens.

Treat it like a password: it provides access to your subscription. If the token has been exposed or lost, issue a new one using the same button and replace the value in the settings.

In AnythingLLM click the settings gear and select Agent Skills in the left-hand column. Scroll down the page: below the blocks Custom Skills and Agent Flows is located MCP Servers.

Nothing has been added yet; it says No MCP servers found, and a button is shown next to it Refresh — you will need it in step 4.

Servers are defined by a file anythingllm_mcp_servers.json in the folder storage/plugins of your installation: for the server build, this is the directory you mounted; for the desktop application, it is its data folder. Create the file if it does not yet exist and insert:

storage/plugins/anythingllm_mcp_servers.json

The connection address is https://mcp.casus.legal/one/mcp. This is a single address: it provides access to all databases covered by your subscription, and it automatically selects the appropriate AI model based on the subject of the question. If you need a connector for a single database, separate addresses are also available (IP Court — https://sip.casus.legal/mcp, KAS — https://kas.casus.legal/mcp, KUD — https://kud.casus.legal/mcp), but the address must then match the database covered by your subscription; otherwise, the server will respond “the subscription is inactive or has expired.” There is no need to keep both the single address and separate addresses at the same time: the AI model will see two identical sets of tools and search twice. The complete table of addresses is below, under the steps.

The server type is required streamable. Our address uses the Streamable HTTP protocol, and with the value sse the connection cannot be established. This is the most common error during the initial connection.

Write the server name ("casuslegal") in Latin characters. Tool identifiers cannot be generated internally from a Cyrillic name, and the model will not see them.

If you need several databases, add a block like this for each one, changing the name and address from the table below. The token is the same in all blocks.

Return to Agent Skills → MCP Servers and click Refresh. The server will appear in the list under the name from the configuration.

The status Running means that the connection has been established. Click the server to see the list of tools: casuslegal_search_practice, casuslegal_get_case_details and the others. The status Stopped (as shown in the screenshot) means that the server has not started. Most often, the cause is an incorrect or expired token or the wrong sse instead of streamable.

MCP tools are available only in agent mode, so start your message with @agent. For example: “@agent 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 tools connected to the conversation are shown in the menu Tools below the input field. The slash commands and agent skills are listed there as well.

The first search takes about 30 seconds because the connector runs several sub-searches across the corpus. The response should include the details of the decisions with links to the full texts.