Koskamo

MultiMail MCP

Provides AI agents with real email addresses for support, notifications, and scheduling. It enables sending markdown emails, reading messages, replying in threads, and managing graduated human oversight from approval to autonomy.

Visit MultiMail

Package and access

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

MultiMail MCP logo, by MultiMailVendor evidenceLocal stdioSource reviewed; not executedOperated by MultiMail
Vendor documentation

What you can do with it

  • Send markdown emails with automatic HTML conversion
  • Read incoming messages and reply in threads
  • Configure mailbox oversight modes (e.g., gated, autonomous)
  • Create accounts and manage API keys for agent identity

Source and maintenance

Vendor evidenceRegistry 0.13.0
mcp-registry: dev.multimail/mcp-server@0.13.0Source repository
Maintenance checked

Packages and installation

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

@multimail/mcp-server 0.13.0

npm
@multimail/mcp-server package definition
{
  "version": "0.13.0",
  "transport": "stdio",
  "identifier": "@multimail/mcp-server",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "MULTIMAIL_API_KEY",
      "format": "string",
      "description": "Your MultiMail API key (starts with mm_live_). Optional — run without it to create an account first."
    },
    {
      "name": "MULTIMAIL_MAILBOX_ID",
      "format": "string",
      "description": "Default mailbox ID. If not set, pass mailbox_id to each tool or call list_mailboxes first."
    }
  ]
}

Tools

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

No tool definitions available.

Connect from your client

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

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "multimail-mcp-multimail-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@multimail/mcp-server@0.13.0"
      ],
      "env": {
        "MULTIMAIL_API_KEY": "<YOUR_MULTIMAIL_API_KEY>",
        "MULTIMAIL_MAILBOX_ID": "<YOUR_MULTIMAIL_MAILBOX_ID>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "multimail-mcp-multimail-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@multimail/mcp-server@0.13.0"
      ],
      "env": {
        "MULTIMAIL_API_KEY": "<YOUR_MULTIMAIL_API_KEY>",
        "MULTIMAIL_MAILBOX_ID": "<YOUR_MULTIMAIL_MAILBOX_ID>"
      }
    }
  }
}

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": {
    "multimail-mcp-multimail-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@multimail/mcp-server@0.13.0"
      ],
      "env": {
        "MULTIMAIL_API_KEY": "<YOUR_MULTIMAIL_API_KEY>",
        "MULTIMAIL_MAILBOX_ID": "<YOUR_MULTIMAIL_MAILBOX_ID>"
      }
    }
  }
}

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": {
    "multimail-mcp-multimail-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@multimail/mcp-server@0.13.0"
      ],
      "env": {
        "MULTIMAIL_API_KEY": "<YOUR_MULTIMAIL_API_KEY>",
        "MULTIMAIL_MAILBOX_ID": "<YOUR_MULTIMAIL_MAILBOX_ID>"
      }
    }
  }
}

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