ContactLint
Validate emails (MX, disposable, role, typo) and phone numbers, singly or in batches, for AI agents.
Connect it
Settings → Connectors → Add custom connector
URL: https://contactlint.com/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://contactlint.com/mcp{
"mcpServers": {
"contactlint": {
"url": "https://contactlint.com/mcp",
"headers": {
"Authorization": "<YOUR_AUTHORIZATION>"
}
}
}
}claude mcp add --transport http contactlint https://contactlint.com/mcp --header "Authorization: <value>"{
"servers": {
"contactlint": {
"type": "http",
"url": "https://contactlint.com/mcp",
"headers": {
"Authorization": "<YOUR_AUTHORIZATION>"
}
}
}
}3 tools, pulled live
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 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. 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. Uses 1 check.
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