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Cursor agent cold email update_lead

How to: Cursor agent cold email update_lead

client:Cursor transport:streamable-http tool:update_lead

Add agent cold email to Cursor

  1. 01

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

{
  "mcpServers": {
    "agent-cold-email": {
      "url": "https://agent-cold-email-api.yaakovscher.workers.dev/mcp"
    }
  }
}
  1. 02

    Save the file and restart Cursor.

  2. 03

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

  3. 04

    If nothing happens, check the server is running and that agent cold email'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

agent cold email will not start until these are set, so update_lead never becomes available.

  • AGENT_COLD_EMAIL_API_KEY
  • AGENT_COLD_EMAIL_BASE_URL

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.