Server data from the Official MCP Registry
Email, EU VAT, IBAN, and domain validation plus evidence-backed U.S. CPSC recall screening.
About
Email, EU VAT, IBAN, and domain validation plus evidence-backed U.S. CPSC recall screening.
Security Report
This is a well-structured MCP server for the LookTwice validation API with proper authentication, input handling, and error management. The server requires an API key via environment variables and exposes only legitimate validation tools. Permissions are appropriate for the stated purpose of calling a third-party validation API. Supply chain analysis found 3 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.
3 files analyzed · 7 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
What You'll Need
Set these up before or after installing:
Environment variable: LOOKTWICE_API_KEY
Environment variable: LOOKTWICE_BASE_URL
How to Install
Add this to your MCP configuration file:
{
"mcpServers": {
"io-github-eason4kim-rocket-looktwice-mcp": {
"env": {
"LOOKTWICE_API_KEY": "your-looktwice-api-key-here",
"LOOKTWICE_BASE_URL": "your-looktwice-base-url-here"
},
"args": [
"-y",
"looktwice-mcp"
],
"command": "npx"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
looktwice-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.
npx -y looktwice-mcp
Setup
- 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_..."
}
}
}
}
Tools
| Tool | What it does | Cost |
|---|---|---|
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 evidence | 1 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 domain | Free quota |
cpsc_recall_match | Evidence-backed candidate matching against CPSC recalls and warnings | 3 units |
credits_balance | Current workspace credit balance | Free |
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_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.
Environment variables
| Variable | Required | Default |
|---|---|---|
LOOKTWICE_API_KEY | Yes | — |
LOOKTWICE_BASE_URL | No | https://api.looktwice.dev |
License
MIT
Reviews
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