ldm-inbox-check-mcp

MCP server for Inbox Check — programmatic email deliverability testing across Gmail, Outlook, Yahoo, Mail.ru and Yandex. Plug it into Claude Desktop, Cursor, or any other MCP-compatible AI client.

What it does

Exposes 5 tools that wrap the Inbox Check REST API:

Tool	Description
`inbox_check_create`	Create a placement test; returns seed addresses to send your email to.
`inbox_check_status`	Get per-provider placement, SPF/DKIM/DMARC, screenshots.
`inbox_check_list`	List recent tests with cursor pagination.
`inbox_check_delete`	Delete a test and its screenshots.
`inbox_check_me`	Inspect API key metadata, features, quota usage.

Install

npx ldm-inbox-check-mcp

No global install needed — Claude Desktop / Cursor will npx-run it on demand.

Get an API key

Go to https://check.live-direct-marketing.online/docs.
Contact the operator for a key (self-service issuance coming later).
Copy the icp_live_... string — it’s shown exactly once.

Configure your MCP client

Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "inbox-check": {
      "command": "npx",
      "args": ["-y", "ldm-inbox-check-mcp"],
      "env": {
        "INBOX_CHECK_API_KEY": "icp_live_xxxxxxxxxxxxxxxxxxxxxxxx"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json:

{
  "mcpServers": {
    "inbox-check": {
      "command": "npx",
      "args": ["-y", "ldm-inbox-check-mcp"],
      "env": { "INBOX_CHECK_API_KEY": "icp_live_..." }
    }
  }
}

Custom agents (Agent SDK, LangChain, etc.)

Run the server manually and pipe stdio, or use the underlying REST API directly — see https://check.live-direct-marketing.online/docs.

Environment variables

Variable	Required	Default
`INBOX_CHECK_API_KEY`	yes	—
`INBOX_CHECK_BASE_URL`	no	`https://check.live-direct-marketing.online`

Override the base URL only for self-hosted deployments or testing.

Example prompt

“Use inbox-check to create a test against Gmail and Outlook, then wait 60 seconds and tell me where the email landed.”

The agent will call inbox_check_create, show you the seed addresses to send to, and (after you send) call inbox_check_status to report placements.

Inbox Check — Email Deliverability Test

Quick Install