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ContactLint

by contactlint.com · remote · no sign-in to list tools · v1.1.0 · published by com.contactlint

Validate emails (MX, disposable, role, typo) and phone numbers, singly or in batches, for AI agents.

Read only
CompareRegistry entry

3 tools: 3 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http contactlint https://contactlint.com/mcp --header 'Authorization: <your-authorization>'

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

3 tools

Only reads 3Claude Code: allow
  • validate_emailCheck an email address: syntax, MX/A records via DNS-over-HTTPS, disposable domain, role address, free provider, typo suggestion for major providers.No findings

    Why it is in this group

    • The name "validate_email" says "validate": a word for reading.
    Description, as the server wrote it
    Check an email address: syntax, MX/A records via DNS-over-HTTPS, disposable domain, role address, free provider, typo suggestion for major providers. No SMTP probing. Uses 1 check.
  • validate_emailsCheck a list of up to 50 email addresses in one call, with the same checks as validate_email.No findings

    Why it is in this group

    • The name "validate_emails" says "validate": a word for reading.
    Description, as the server wrote it
    Check a list of up to 50 email addresses in one call, with the same checks as validate_email. Returns one result per address in the same order plus a summary of verdicts. Uses 1 check per address; addresses whose DNS lookup fails come back with reason dns_error and are not billed. If the key lacks checks for the whole list, nothing is checked or billed.
  • validate_phoneParse and validate a phone number: valid, possible, type, region, E.164 and national formats.No findings

    Why it is in this group

    • The name "validate_phone" says "validate": a word for reading.
    Description, as the server wrote it
    Parse and validate a phone number: valid, possible, type, region, E.164 and national formats. Uses 1 check.

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http contactlint https://contactlint.com/mcp --header 'Authorization: <your-authorization>'

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__contactlint__validate_email",
      "mcp__contactlint__validate_emails",
      "mcp__contactlint__validate_phone"
    ],
    "ask": [],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as contactlint. Review it before you use it.