LookTwice
About
Business-input validation: email checks (syntax, MX, disposable), EU VAT via the official VIES service, IBAN structure + MOD-97, domain DNS/TLS/RDAP, and evidence-backed U.S. CPSC product recall screening.
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Setting up with Highlight
This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:
- Download and install Highlight from highlightai.com/download
- Navigate to the plugins tab and select "Add Custom Plugin"
-
Configure the plugin with the settings below
Plugin Name
LookTwiceCommand (node, npx, python, etc.)Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
- Enable "Start Automatically" if you want the plugin to start when Highlight launches
Claude Desktop / Cursor
Paste into your MCP client config file to install this server.
{
"mcpServers": {
"looktwice": {
"server": {
"command": "npx",
"args": [
"-y",
"looktwice-mcp"
],
"env": {
"LOOKTWICE_API_KEY": "",
"LOOKTWICE_BASE_URL": ""
}
}
}
}
}McpServers
{
"server": {
"command": "npx",
"args": [
"-y",
"looktwice-mcp"
],
"env": {
"LOOKTWICE_API_KEY": "",
"LOOKTWICE_BASE_URL": ""
}
}
}Transport
"stdio"Package
"looktwice-mcp"Registry
"npm"MCP (Model Context Protocol) server for theLookTwice API. Validate emails, EU VAT numbers, IBANs, and domains, and screen products against U.S. CPSC recalls and Product Safety Warnings — directly from Claude Desktop, Cursor, or any MCP client.
- Create a LookTwice account atlooktwice.dev— verified accounts receive 100 free API units each month, no credit card required.
- Create an API key in thedashboard.
- Add the server to your MCP client configuration:
{ "mcpServers": { "looktwice": { "command": "npx", "args": ["-y", "looktwice-mcp"], "env": { "LOOKTWICE_API_KEY": "lt_live_..." } } } }
Most VAT or email MCP servers wrap one upstream. This server keeps the same evidence rules across email, VIES, IBAN, domain, and CPSC: timestamps, official sources, and no mailbox / account / safety claims.
- email_checknever claims a mailbox exists (mailbox_status: not_checked).
- iban_checknever claims an account exists or belongs to a person.
- cpsc_recall_matchreturns screening candidates with official sources, not safety, legality, or compliance decisions.
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