RadMail MCP MCP server

RadMail is an AI email operating system that provides agents with two-axis email triage, commitment tracking, and draft generation. The MCP server exposes tools for triaging inboxes, explaining why messages are surfaced, listing commitments, searching emails, and drafting replies, all while enforcing a hard-stop on sending money or changing banking details to prevent business-email compromise.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by RadMail

MCP endpoint (Streamable HTTP)

https://radmail.ai/api/mcp/sandbox

Vendor documentation

What you can do with it

Triage inbox messages by importance and urgency
Track and draft follow-ups for open commitments
Search emails by sender, subject, or content
Check email deliverability DNS posture for any domain

Tools advertised by the last live check:

triage_inbox
list_right_now
why_surfaced
list_commitments
draft_reply
search

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 radmail-mcp https://radmail.ai/api/mcp/sandbox

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 radmail-mcp --url https://radmail.ai/api/mcp/sandbox

Cursor

Merge this server into .cursor/mcp.json in your project, then enable radmail-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "radmail-mcp": {
      "url": "https://radmail.ai/api/mcp/sandbox"
    }
  }
}

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": {
    "radmail-mcp": {
      "type": "streamableHttp",
      "url": "https://radmail.ai/api/mcp/sandbox",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start radmail-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "radmail-mcp": {
      "type": "http",
      "url": "https://radmail.ai/api/mcp/sandbox"
    }
  }
}

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 radmail-mcp https://radmail.ai/api/mcp/sandbox

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": {
    "radmail-mcp": {
      "url": "https://radmail.ai/api/mcp/sandbox"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "radmail-mcp": {
      "serverUrl": "https://radmail.ai/api/mcp/sandbox"
    }
  }
}

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