Koskamo

EmptyInbox MCP

A minimalistic disposable email inbox API and MCP server for AI agents. It allows agents to create temporary email addresses, receive messages, and read content via REST API or MCP server without configuration. It supports creating inboxes, polling for messages, and extracting verification codes or action URLs from emails.

Package and access

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

EmptyInbox MCP logo, by blockonomicsCommunity listingLocal stdioSource reviewed; not executedPublished by blockonomics
You need:Zero config. No API key: the server registers an account on its first tool call.
Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

  • Popularity 4 GitHub stars

What you can do with it

  • Create temporary email addresses for AI agents
  • Receive and read messages in disposable inboxes
  • Extract verification codes from email content
  • Poll for new messages since last check

Source and maintenance

Community listingRegistry 1.5.0
mcp-registry: io.github.cnohall/emptyinbox@1.5.0Source repository
Last repository push
Maintenance checked

Packages and installation

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

emptyinbox-mcp 1.5.0

npm
emptyinbox-mcp package definition
{
  "version": "1.5.0",
  "transport": "stdio",
  "identifier": "emptyinbox-mcp",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "EMPTYINBOX_API_KEY",
      "description": "Existing EmptyInbox API key. Omit to auto-register a free account on the first tool call that needs one; the key is then written to ~/.emptyinbox.json."
    }
  ]
}

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.

  • · repository · passed · metadata changed · updated
  • · 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.

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": {
    "emptyinbox-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "emptyinbox-mcp@1.5.0"
      ],
      "env": {
        "EMPTYINBOX_API_KEY": "<YOUR_EMPTYINBOX_API_KEY>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "emptyinbox-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "emptyinbox-mcp@1.5.0"
      ],
      "env": {
        "EMPTYINBOX_API_KEY": "<YOUR_EMPTYINBOX_API_KEY>"
      }
    }
  }
}

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": {
    "emptyinbox-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "emptyinbox-mcp@1.5.0"
      ],
      "env": {
        "EMPTYINBOX_API_KEY": "<YOUR_EMPTYINBOX_API_KEY>"
      }
    }
  }
}

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": {
    "emptyinbox-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "emptyinbox-mcp@1.5.0"
      ],
      "env": {
        "EMPTYINBOX_API_KEY": "<YOUR_EMPTYINBOX_API_KEY>"
      }
    }
  }
}

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