Koskamo

HideMail MCP

This official MCP server allows AI assistants to manage private email aliases. It enables creating new aliases with notes, finding aliases by address or note, editing alias notes, toggling aliases on or off to block or allow mail, viewing alias counts, managing webhooks for incoming mail, and setting up custom domains with catch-all options. It does not read emails or send mail on behalf of the user.

Endpoint and access

OAuth sign-in: the first time you connect, your client opens the vendor's own authorization prompt in a browser.

HideMail MCP logo, by HideMailOAuth sign-inEndpoint checked 2026-10-18Operated by HideMail
MCP endpoint (Streamable HTTP)
https://hidemail.app/mcp
Vendor documentation

What you can do with it

  • Create a new alias with a note about where you use it
  • Find aliases by address or note and show forwarding stats
  • Edit alias notes and turn an alias off to block mail
  • Set up a custom domain and choose the domain for new aliases

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http hidemail-mcp https://hidemail.app/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add hidemail-mcp --url https://hidemail.app/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable hidemail-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "hidemail-mcp": {
      "url": "https://hidemail.app/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.
Cline configuration
{
  "mcpServers": {
    "hidemail-mcp": {
      "type": "streamableHttp",
      "url": "https://hidemail.app/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start hidemail-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "hidemail-mcp": {
      "type": "http",
      "url": "https://hidemail.app/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http hidemail-mcp https://hidemail.app/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "hidemail-mcp": {
      "url": "https://hidemail.app/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "hidemail-mcp": {
      "serverUrl": "https://hidemail.app/mcp"
    }
  }
}

Do you run HideMail MCP?

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