The ContactLint MCP server,
connected in one click.
Validate emails (syntax, MX, disposable, role, typo) and phone numbers before your agent saves them. Connect the official ContactLint MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add ContactLint to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http contactlint https://contactlint.com/mcpRun in your terminal, then restart Claude Code.
ContactLint · https://contactlint.com/mcp
What your AI can do with ContactLint
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “validate_email”: Check an email address: syntax, MX/A records via DNS-over-HTTPS, disposable domain, role address, free provider, typo suggestion for major p.”
“Use “validate_phone”: Parse and validate a phone number: valid, possible, type, region, E.164 and national formats. Uses 1 check.”
How secure is the ContactLint MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how ContactLint holds up.
Official endpoint
Operated by ContactLint (contactlint.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If ContactLint adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick ContactLint
Choose ContactLint in the gate directory. No sign-in needed.
Use it anywhere
ContactLint's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools ContactLint exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
validate_email — Check an email address: syntax, MX/A records via DNS-over-HTTPS, disposable domain, role address, free provider, typo suggestion for major p
validate_phone — Parse and validate a phone number: valid, possible, type, region, E.164 and national formats. Uses 1 check.
Who runs the ContactLint MCP server?
The ContactLint MCP server at a glance
https://contactlint.com/mcpQuestions, answered
Is there an official ContactLint MCP server?
Yes — ContactLint operates its own remote MCP server at contactlint.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect ContactLint to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick ContactLint in the directory. No account or sign-in is needed. From then on, ContactLint's tools are available in every client you've connected to gate.
Do I need to host anything?
No. ContactLint runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the ContactLint MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect ContactLint in minutes. No credit card required.
Connect more than just ContactLint
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up ContactLint in: Claude · Claude Code · ChatGPT · Cursor · VS Code