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looktwice-mcp

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MCP server for the LookTwice API: email, EU VAT, IBAN, and domain validation plus evidence-backed CPSC recall screening from any MCP client.

0 stars TypeScriptOthers Updated Aug 15, 2026
cpscemail-validationibanmcpmcp-servermodelcontextprotocolproduct-recallsvalidationvatiban-validationvat-validationvies

Documentation

looktwice-mcp

npm version
license
MCP

MCP (Model Context Protocol) server for the LookTwice 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.

bash
npx -y looktwice-mcp

Setup

1. Create a LookTwice account at looktwice.dev — verified

accounts receive 100 free API units each month, no credit card required.

2. Create an API key in the dashboard.

3. Add the server to your MCP client configuration:

json
{
  "mcpServers": {
    "looktwice": {
      "command": "npx",
      "args": ["-y", "looktwice-mcp"],
      "env": {
        "LOOKTWICE_API_KEY": "lt_live_..."
      }
    }
  }
}

Tools

ToolWhat it doesCost
`email_check`Syntax, MX, disposable, role, free-provider signals (no mailbox probing)2 units
`vat_check`Live EU VIES validation with returned business data and request evidence1 unit
`iban_check`Country structure, length, and MOD-97 checksum (no account-existence claim)1 unit
`domain_check`DNS, MX, TLS, and RDAP state for a registrable domainFree quota
`cpsc_recall_match`Evidence-backed candidate matching against CPSC recalls and warnings3 units
`credits_balance`Current workspace credit balanceFree

Compared with a single-purpose MCP

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.

Honest boundaries

  • `email_check` never claims a mailbox exists (`mailbox_status: not_checked`).
  • `iban_check` never claims an account exists or belongs to a person.
  • `cpsc_recall_match` returns screening candidates with official sources, not safety, legality,

or compliance decisions.

Environment variables

VariableRequiredDefault
`LOOKTWICE_API_KEY`Yes
`LOOKTWICE_BASE_URL`No`https://api.looktwice.dev`

License

MIT

Frequently asked questions

What is looktwice-mcp?

looktwice-mcp is MCP server for the LookTwice API: email, EU VAT, IBAN, and domain validation plus evidence-backed CPSC recall screening from any MCP client.

How do I install looktwice-mcp?

Open the GitHub repository and follow its README. Most MCP servers are added to your client's MCP config, then called by your agent.

Is looktwice-mcp open source?

Yes — it is hosted on GitHub at https://github.com/eason4kim-rocket/looktwice-mcp.

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