INDIVIDUAL MCP TOOL

email_check

Deliverability probe for an email address without sending anything: syntax validation, live MX lookup (with A/AAAA fallback per RFC 5321), disposable-domain detection, and typo suggestions for common providers.

zerm.devnone authenticationAvailability not checked

Input schema

{}

Risk classification

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

A tool name or description suggests sending messages.

Parent endpoint

zerm.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.zerm]
url = "https://zerm.dev/mcp"
enabled = true

Claude Code

.mcp.json

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

Claude Desktop

Settings → Connectors → Add custom connector

Name: zerm
Remote MCP URL: https://zerm.dev/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": {
    "zerm": {
      "url": "https://zerm.dev/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

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

Generic MCP

Client-specific MCP configuration

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

MCP Inspector

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

Related tools

kv_set — Store a value durably under (namespace, key) with a TTL.
kv_get — Retrieve a value previously stored with kv_set.
kv_delete — Delete a key from your namespace.
kv_list — List keys in your namespace, optionally filtered by prefix.
timer_verify_origin — One-time consent handshake before timers can deliver to an origin.
timer_schedule — Schedule a durable callback: at fire time this service POSTs your JSON payload to your URL.
timer_cancel — Cancel a pending timer by id.
timer_status — Check a timer: status (pending|delivering|delivered|failed|cancelled), attempts, last error.