Radmail MCP Server

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Radmail MCP is listed as active in the registry but did not answer our last check. 60 installs a week from npm. It exposes 6 tools. Last commit 20 Sep 2026.

Email OS for agents - real-inbox search, triage, commitments, and a verifiable BEC hard-stop.

Installs per day peak 34 · avg 12 · +12% w/w

a month agotoday

Uptime history 51 days of history · worst day 0%

51 days agonow

1.1%

Uptime 24h

1 of 91 checks

Tools

read from the server

377 ms

Response time

average over 24h

Installs / week

npm and PyPI

What the code does

We read the source, 6 h ago · tools taken from the live server · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Package points at a different repository dougsureel-tech/radmail-mcp

пакет radmail-mcp ссылается на radmail-ai/radmail-mcp

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add radmail-mcp --transport http https://radmail.ai/api/mcp/sandbox

~/Library/Application Support/Claude/claude_desktop_config.json

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

~/.codex/config.toml

[mcp_servers.radmail-mcp]
url = "https://radmail.ai/api/mcp/sandbox"

.cursor/mcp.json

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

.vscode/mcp.json

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

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

commitments

list_commitments

Extract the open commitments in the correspondence, both owed by you and owed to you, with who and by-when.

draft

draft_reply

Draft a reply for a thread. It returns text for a human to review — it does not and cannot send it.

right

list_right_now

Return only the 'Right Now' lane — the most recent and most important messages that genuinely can't be missed.

search

Find a specific message by sender, subject, or content. Results come back most-relevant + newest first, and every hit says where it matched (from / subject / body) and why. On this hosted sandbox it searches the built-in demo inbox; run the radmail-mcp package with RADMAIL_API_KEY set and the same tool searches your REAL ingested inbox read-only (with from / after / before filters) via the v1 search API.

triage

triage_inbox

Rank a mailbox on two axes (importance x urgency) and return what needs a human now versus what can wait or is already handled — with each thread's open commitment (the promise you owe or are owed, and whether it's overdue) surfaced inline, so the follow-through is visible on the very first call.

why

why_surfaced

Explain in plain English why a given message was surfaced — the signals (sender, urgency, commitment) behind its rank.

Endpoints

URL	Transport	State	Latency	Checked
https://radmail.ai/api/mcp/sandbox	streamable-http	answering	140 ms	6 min ago

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Radmail MCP — questions

Answers built from our own checks of this server.

What can Radmail MCP do?

It exposes 6 tools, read directly from the server on our last check. Among them: draft_reply, list_commitments, list_right_now, search, triage_inbox, why_surfaced. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Radmail MCP working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 1 of 91 checks got a reply (1.1%), average response time 377 ms. The bar chart above shows every period we have measured.

The registry lists Radmail MCP as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect Radmail MCP?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Radmail MCP need an API key?

No. Radmail MCP completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Radmail MCP?

It answers our handshake in 377 ms on average, which is faster than 42% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

How many people use Radmail MCP?

The npm package radmail-mcp was installed 60 times in the last week. Week over week that is +12%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Radmail MCP open source?

Yes — it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.