pylos-mcp

pylos-mcp is an email MCP server that allows AI agents to search, read, and draft emails across Gmail, Outlook, Microsoft 365, iCloud, and any IMAP mailbox. It is designed to be hardened against prompt injection by treating every message as input from a stranger and marking hidden or suspicious content. By default, the assistant can read and draft, while destructive actions like moving, sending, and deleting are disabled unless explicitly enabled with additional safety constraints.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by adamVass

Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

Popularity 4 GitHub stars

What you can do with it

Search and read emails from Gmail, Outlook, or IMAP mailboxes
Draft emails with safety checks against prompt injection
Neutralize image markup and hidden text in incoming messages
Send emails only to allowlisted recipients with user confirmation

Source and maintenance

Community listingRegistry 1.3.0MIT

mcp-registry: io.github.adamVass/pylos-mcp@1.3.0 Source repository Project website

Last repository push: Oct 31, 2026, 6:45 PM UTC
Latest release: v1.3.0
Maintenance checked: Nov 2, 2026, 6:07 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

pylos-mcp 1.3.0

npm

pylos-mcp package definition

{
  "version": "1.3.0",
  "transport": "stdio",
  "identifier": "pylos-mcp",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "EMAIL_USER",
      "format": "string",
      "isRequired": true,
      "description": "Account login."
    },
    {
      "name": "EMAIL_PASSWORD",
      "format": "string",
      "description": "App password. Either this or EMAIL_PASSWORD_CMD is required, except with PROVIDER=outlook, which signs in through the browser."
    },
    {
      "name": "PROVIDER",
      "format": "string",
      "description": "One of gmail, outlook, icloud, yahoo, gmx, fastmail, mailbox.org, posteo. Fills in IMAP, SMTP and Sieve hosts and ports."
    },
    {
      "name": "IMAP_HOST",
      "format": "string",
      "description": "IMAP hostname for self-hosted or unlisted providers. Overrides the preset."
    },
    {
      "name": "CAPABILITIES",
      "format": "string",
      "description": "Comma-separated list of tiers beyond read, which is always included. Defaults to drafts."
    },
    {
      "name": "MS_CLIENT_ID",
      "format": "string",
      "description": "With PROVIDER=outlook only. Application ID of an app registered in your organization's tenant."
    },
    {
      "name": "MS_TENANT",
      "format": "string",
      "description": "With PROVIDER=outlook only. Tenant ID or domain, for a single-tenant MS_CLIENT_ID."
    },
    {
      "name": "ACCOUNTS",
      "format": "string",
      "description": "Names of several accounts, separated by commas, each 1 to 16 lowercase letters or digits. Each account's settings then end in __ and its name in capitals, such as EMAIL_USER__WORK. Leave the unsuffixed account settings out."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 2, 2026, 6:07 PM UTC · repository · passed · metadata changed · updated
Nov 2, 2026, 6:07 PM UTC · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "pylos-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "pylos-mcp@1.3.0"
      ],
      "env": {
        "EMAIL_USER": "<YOUR_EMAIL_USER>",
        "EMAIL_PASSWORD": "<YOUR_EMAIL_PASSWORD>",
        "PROVIDER": "<YOUR_PROVIDER>",
        "IMAP_HOST": "<YOUR_IMAP_HOST>",
        "CAPABILITIES": "<YOUR_CAPABILITIES>",
        "MS_CLIENT_ID": "<YOUR_MS_CLIENT_ID>",
        "MS_TENANT": "<YOUR_MS_TENANT>",
        "ACCOUNTS": "<YOUR_ACCOUNTS>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "pylos-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "pylos-mcp@1.3.0"
      ],
      "env": {
        "EMAIL_USER": "<YOUR_EMAIL_USER>",
        "EMAIL_PASSWORD": "<YOUR_EMAIL_PASSWORD>",
        "PROVIDER": "<YOUR_PROVIDER>",
        "IMAP_HOST": "<YOUR_IMAP_HOST>",
        "CAPABILITIES": "<YOUR_CAPABILITIES>",
        "MS_CLIENT_ID": "<YOUR_MS_CLIENT_ID>",
        "MS_TENANT": "<YOUR_MS_TENANT>",
        "ACCOUNTS": "<YOUR_ACCOUNTS>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "pylos-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "pylos-mcp@1.3.0"
      ],
      "env": {
        "EMAIL_USER": "<YOUR_EMAIL_USER>",
        "EMAIL_PASSWORD": "<YOUR_EMAIL_PASSWORD>",
        "PROVIDER": "<YOUR_PROVIDER>",
        "IMAP_HOST": "<YOUR_IMAP_HOST>",
        "CAPABILITIES": "<YOUR_CAPABILITIES>",
        "MS_CLIENT_ID": "<YOUR_MS_CLIENT_ID>",
        "MS_TENANT": "<YOUR_MS_TENANT>",
        "ACCOUNTS": "<YOUR_ACCOUNTS>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "pylos-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "pylos-mcp@1.3.0"
      ],
      "env": {
        "EMAIL_USER": "<YOUR_EMAIL_USER>",
        "EMAIL_PASSWORD": "<YOUR_EMAIL_PASSWORD>",
        "PROVIDER": "<YOUR_PROVIDER>",
        "IMAP_HOST": "<YOUR_IMAP_HOST>",
        "CAPABILITIES": "<YOUR_CAPABILITIES>",
        "MS_CLIENT_ID": "<YOUR_MS_CLIENT_ID>",
        "MS_TENANT": "<YOUR_MS_TENANT>",
        "ACCOUNTS": "<YOUR_ACCOUNTS>"
      }
    }
  }
}

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