Cursor

Cursor talks to the hosted server over streamable HTTP and signs in with OAuth. langweave supports dynamic client registration, so Cursor registers itself: the auth block Cursor’s docs describe for static client credentials is not needed.

1. Open ~/.cursor/mcp.json to have the server in every project, or .cursor/mcp.json at the root of one project, and add langweave under mcpServers:

   {
     "mcpServers": {
       "langweave": {
         "url": "https://api.langweave.tech/mcp"
       }
     }
   }

   If the file already lists other servers, add only the langweave entry beside them.

2. When Cursor opens lexmem’s sign-in page, sign in with the account you created and allow access.

3. Open Customize in the sidebar and check that langweave is enabled.

Note

Nothing in the entry identifies you — each person signs in with their own account — so a project’s .cursor/mcp.json is safe to commit.

Check that it works

Ask for something ordinary in the chat. It should call get_language_profile first and log_exposures after a reply that wove something. Cursor asks for approval before it uses an MCP tool, by default; allowing log_exposures is what makes your vocabulary grow. If the tools say you have not chosen a language, choose one in the app first.