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Cline Polyform email_domain_check

How to: Cline Polyform email_domain_check

client:Cline transport:streamable-http tool:email_domain_check

Add Polyform to Cline

  1. 01

    Open ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json and merge this in. Keep any servers already there. 

{
  "mcpServers": {
    "polyform": {
      "url": "https://api.polyform.org/mcp"
    }
  }
}
  1. 02

    Save the file and restart Cline.

  2. 03

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

  3. 04

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

Cline's MCP Servers pane edits this file for you if you would rather not find it. Cline docs

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.

Polyform MCP server