uchecker

Russian-language email-validation platform offering bulk and single email verification (SMTP mailbox existence, MX/DNS, catch-all, disposable, role-based, spam-trap/blacklist checks) plus free DNS/email tools. Access via REST API, a hosted MCP server, web dashboard, and Telegram bot.

{
  "mcpServers": {
    "uchecker": {
      "command": "npx",
      "args": [
        "-y",
        "api-evangelist/uchecker"
      ]
    }
  }
}

claude mcp add uchecker npx -y api-evangelist/uchecker

{
  "mcpServers": {
    "uchecker": {
      "command": "npx",
      "args": [
        "-y",
        "api-evangelist/uchecker"
      ]
    }
  }
}