INDIVIDUAL MCP TOOL

preview_email

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

emailens.devnone authenticationAvailability not checked

LIVE ENDPOINT

https://emailens.dev/api/mcp

No auth detected

Connect to this endpoint to inspect the live schema for preview_email and invoke it with your own arguments.

Indexed input schema

{}

Risk classification

Potential side effects detected · medium confidence · heuristic, not a guarantee.

A tool name or description suggests sending messages.

Parent server

emailens.dev

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.emailens]
url = "https://emailens.dev/api/mcp"
enabled = true

Claude Code

.mcp.json

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

Claude Desktop

Settings → Connectors → Add custom connector

Name: emailens
Remote MCP URL: https://emailens.dev/api/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

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

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

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

Generic MCP

Client-specific MCP configuration

{
  "name": "emailens",
  "transport": "streamable-http",
  "url": "https://emailens.dev/api/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

Related tools

analyze_email — Quick CSS compatibility analysis , returns warnings and per-client scores.
audit_email — Comprehensive quality audit , CSS compatibility, spam, links, accessibility, images, inbox preview, size, templates, content overflow, visual bugs.
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.
diff_emails — Compare two email HTML versions , shows score changes, fixed issues, and regressions per client.
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).
get_build_status — Check a build_email run by runId , returns status, iteration, best compatibility score, and the current best source once available.