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Cursor Signal8 screen_companies

How to: Cursor Signal8 screen_companies

client:Cursor transport:streamable-http tool:screen_companies

Add Signal8 to Cursor

  1. 01

    Open ~/.cursor/mcp.json and merge this in. Keep any servers already there.

{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.signal8.ai/mcp"
    }
  }
}
  1. 02

    Save the file and restart Cursor.

  2. 03

    Ask for something screen_companies does. Cursor lists the server's tools on connect and calls screen_companies itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that Signal8's identifier in your config matches the one above exactly.

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs

Set these first

Signal8 will not start until these are set, so screen_companies never becomes available.

  • SIGNAL8_API_KEY

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.