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Cursor MCP Integration for LangGraph

Connect Cursor to LangGraph through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.

4 functions 4 read 0 write API key auth
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Connect Cursor to LangGraph

Run KosmoKrator integration calls from LangGraph nodes while preserving local credentials and permissions.

Use a graph node that calls the KosmoKrator CLI for deterministic steps or an MCP client for dynamic tool selection. The gateway is local, scoped to this integration, and starts with --write=deny so LangGraph can inspect read-capable tools without receiving write access by default.

Cursor MCP Config for LangGraph

Headless CLI calls fit repeatable graph edges; MCP fits exploratory agent nodes.

{
  "mcpServers": {
    "kosmokrator-cursor": {
      "type": "stdio",
      "command": "kosmo",
      "args": [
        "mcp:serve",
        "--integration=cursor",
        "--write=deny"
      ]
    }
  }
}

Run the Gateway Manually

kosmokrator mcp:serve --integration=cursor --write=deny

Why Use KosmoKrator Here

Scoped tools

Expose only Cursor instead of a broad multi-service tool list.

Local credentials

Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.

Write policy

Start read-only, then opt into ask or allow for trusted workspaces.

Cursor Tools Visible to LangGraph

LangGraph sees stable MCP tool names generated from the Cursor integration catalog.

MCP toolSource functionTypeDescription
integration__cursor__cursor_list_workspaces cursor.cursor_list_workspaces Read List all Cursor workspaces accessible to the authenticated user. Returns workspace IDs you can use with other Cursor tools.
integration__cursor__cursor_get_workspace cursor.cursor_get_workspace Read Get details for a specific Cursor workspace by its ID.
integration__cursor__cursor_list_team_members cursor.cursor_list_team_members Read List all team members in a Cursor workspace. Returns member names, emails, and roles.
integration__cursor__cursor_list_extensions cursor.cursor_list_extensions Read List all extensions installed in a Cursor workspace. Returns extension names, identifiers, and versions.

Related Cursor Pages

Cursor CLIUse direct JSON commands instead of MCP discovery. Cursor MCPFull gateway reference and MCP tool names. KosmoKrator for LangGraphClient-level gateway setup.