Emailens MCP

Connect Remote server

claude mcp add --transport http mcp https://emailens.dev/api/mcp

{
  "mcpServers": {
    "mcp": {
      "url": "https://emailens.dev/api/mcp"
    }
  }
}

{
  "servers": {
    "mcp": {
      "type": "http",
      "url": "https://emailens.dev/api/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://emailens.dev/api/mcp

Tools 15 found in our last check

• preview_email

  Full email compatibility preview , transforms HTML for 21 email clients, analyzes CSS, generates scores, previews dark mode, checks inbox preview and email size.

• analyze_email

  Fix error and warning findings. Info findings are not problems (the email falls back safely there): never remove responsive (@media) or dark-mode CSS to clear them. Quick CSS compatibility analysis, returns per-client scores and one finding per problem, listing the clients it af…

• audit_email

  Fix error and warning findings, and restore anything listed in designRemovals. Info findings are not problems (the email falls back safely there): never remove responsive (@media), dark-mode CSS or rounded corners to clear them. designRemovals compares this version with the firs…

• fix_email

  Generate a structured fix prompt for email compatibility issues.

• list_clients

  List all 21 supported email clients with IDs, names, rendering engines, dark mode support, and deprecation status. Use the returned IDs to filter other tools like preview_email or capture_screenshots.

• diff_emails

  Compare two email HTML versions , shows score changes, fixed issues, and regressions per client.

• capture_screenshots

  Capture real email screenshots across 21 clients (Gmail, Outlook, Apple Mail, etc.) with light and dark mode variants. Screenshots are rendered in real browsers and hosted on CDN.

• share_preview

  Create a shareable link for an email preview. Recipients see the full analysis without needing an account. Requires the Dev plan or above.

• check_deliverability

  Check email deliverability for a domain , SPF, DKIM, DMARC, MX, BIMI.

• build_email

  Generate a cross-client-compatible email from a brief using Emailens's self-healing loop (generate → score across 21 clients → repair). Output stays in the framework you choose. Returns a runId immediately , poll get_build_status for progress and the final code. Requires a Pro/T…

• get_build_status

  Check a build_email run by runId , returns status, iteration, best compatibility score, and the current best source once available.

• sandbox_get_inbox

  Retrieve or auto-create your Emailens sandbox test email address for capturing test emails.

• sandbox_list_messages

  List recently captured test emails in the Emailens sandbox.

• sandbox_wait_for_email

  Poll and wait for a matching incoming test email in the sandbox (ideal for auth OTPs, magic links, transactional email assertions).

• sandbox_get_message

  Get complete email details: HTML/text body, parsed headers, spam score, SPF/DKIM/DMARC auth status, and validated links.

Details

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