LookTwice

by eason4kim-rocket

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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.

Details

Author
eason4kim-rocket
Categories
Other

Setup

Install LookTwice in your MCP client (Claude Desktop, Cursor, Windsurf, and others).

Repository: https://github.com/eason4kim-rocket/looktwice-mcp

Follow the installation instructions in the repository README, then restart your MCP client.

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 at
looktwice.dev— verified accounts receive 100 free API units each month, no credit card required.
- Create an API key in the
dashboard.
- 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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