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pylos-mcp MCP Server

local only

pylos-mcp runs on your own machine — the client starts it, so there is no endpoint to ping. 1 476 installs a week from npm. Last commit 15 Oct 2026.

Email MCP server for Gmail, Outlook and any IMAP mailbox, hardened against prompt injection

Installs per day peak 20 · avg 8 · +12% w/w
a month agotoday
1 476
Installs / week
npm · pylos-mcp
3
Stars
3 open issues
15 Oct 2026
Last commit
9 releases in 90 days
MIT
License
TypeScript

What the code does

We read the source, 21 h ago · rules ccca72095570

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.

Runs an external command src/core/oauth.ts:361, src/config.ts:190
  const child = spawn(command, args, { stdio: 'ignore', detached: true })

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.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add pylos-mcp -- npx -y pylos-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "pylos-mcp": {
      "args": [
        "-y",
        "pylos-mcp"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.pylos-mcp]
command = "npx"
args = ["-y", "pylos-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "pylos-mcp": {
      "args": [
        "-y",
        "pylos-mcp"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "pylos-mcp": {
      "args": [
        "-y",
        "pylos-mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: EMAIL_USER (Account login.), EMAIL_PASSWORD (App password. Either this or EMAIL_PASSWORD_CMD is required, except with PROVIDER=outlook, which signs in through the browser.), PROVIDER (One of gmail, outlook, icloud, yahoo, gmx, fastmail, mailbox.org, posteo. Fills in IMAP, SMTP and Sieve hosts and ports.), IMAP_HOST (IMAP hostname for self-hosted or unlisted providers. Overrides the preset.), CAPABILITIES (Comma-separated list of tiers beyond read, which is always included. Defaults to drafts.), MS_CLIENT_ID (With PROVIDER=outlook only. Application ID of an app registered in your organization's tenant.), MS_TENANT (With PROVIDER=outlook only. Tenant ID or domain, for a single-tenant MS_CLIENT_ID.). The author declared them in the registry entry; get the values from the project itself.

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pylos-mcp — questions

Answers built from our own checks of this server.

Why is there no uptime for pylos-mcp?
pylos-mcp runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package pylos-mcp was installed 1 476 times last week.
How do I connect pylos-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 runs locally, so the command pulls pylos-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use pylos-mcp?
The npm package pylos-mcp was installed 1 476 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 pylos-mcp open source?
Yes — it is published under the MIT licence, written in TypeScript, 3 stars on GitHub and 3 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.