The ARC-Relay MCP server,
connected in one click.
DMARC-safe email forwarding for agents: aliases, DNS health checks, and MCP tools on your domains. Connect the official ARC-Relay 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 ARC-Relay 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 arc-relay https://arc-relay.com/mcpRun in your terminal, then restart Claude Code.
ARC-Relay · https://arc-relay.com/mcp
What your AI can do with ARC-Relay
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “check_dmarc”: Check a domain's DMARC, SPF, and MX records. Use this to diagnose email authentication issues.”
“Use “check_email_health”: Get a 0-100 email health score for any domain. Checks DMARC, SPF, MX, and DKIM records and returns a letter grade (A+ to F) with actionable.”
“Use “check_health”: Check ARC-Relay service health and uptime.”
“Use “check_spf”: Validate a domain's SPF record. Shows mechanisms, DNS lookup count, and warns if over the 10-lookup limit.”
How secure is the ARC-Relay MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how ARC-Relay holds up.
Official endpoint
Operated by ARC-Relay (arc-relay.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 ARC-Relay 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 ARC-Relay
Choose ARC-Relay in the gate directory. No sign-in needed.
Use it anywhere
ARC-Relay'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 ARC-Relay exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
check_dmarc — Check a domain's DMARC, SPF, and MX records. Use this to diagnose email authentication issues.
check_email_health — Get a 0-100 email health score for any domain. Checks DMARC, SPF, MX, and DKIM records and returns a letter grade (A+ to F) with actionable
check_health — Check ARC-Relay service health and uptime.
check_spf — Validate a domain's SPF record. Shows mechanisms, DNS lookup count, and warns if over the 10-lookup limit.
network_leaderboard — View top relay nodes ranked by reputation score. Filter by region.
network_stats — Get public relay network statistics — total nodes, active nodes, messages routed, delivery rate, DMARC pass rate.
Who runs the ARC-Relay MCP server?
The ARC-Relay MCP server at a glance
https://arc-relay.com/mcpQuestions, answered
Is there an official ARC-Relay MCP server?
Yes — ARC-Relay operates its own remote MCP server at arc-relay.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 ARC-Relay to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick ARC-Relay in the directory. No account or sign-in is needed. From then on, ARC-Relay's tools are available in every client you've connected to gate.
Do I need to host anything?
No. ARC-Relay runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the ARC-Relay 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 ARC-Relay in minutes. No credit card required.
Connect more than just ARC-Relay
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up ARC-Relay in: Claude · Claude Code · ChatGPT · Cursor · VS Code