The DomainCanary MCP server,
connected in one click.
Check a domain's DMARC, SPF and DKIM, build SPF records, explain bounces, read DMARC reports. Connect the official DomainCanary 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 DomainCanary 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 domaincanary https://domaincanary.com/mcpRun in your terminal, then restart Claude Code.
DomainCanary · https://domaincanary.com/mcp
What your AI can do with DomainCanary
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “check_domain”: Use this when someone asks whether a domain's email authentication is set up correctly, why mail from a domain fails DMARC, SPF or DKIM, or.”
“Use “build_spf”: Use this when someone lists the services that send their email and wants the SPF record to publish, or wants a sender added to the SPF recor.”
“Use “explain_bounce”: Use this when someone pastes a bounce message, an SMTP reply such as 550 5.7.26, or an Authentication-Results header and asks what it means.”
“Use “analyze_report”: Use this when someone has a DMARC aggregate report and wants to know which senders passed and which failed. The report is the XML, .gz or .z.”
How secure is the DomainCanary MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how DomainCanary holds up.
Official endpoint
Operated by DomainCanary (domaincanary.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 DomainCanary 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 DomainCanary
Choose DomainCanary in the gate directory. No sign-in needed.
Use it anywhere
DomainCanary'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 DomainCanary exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
check_domain — Use this when someone asks whether a domain's email authentication is set up correctly, why mail from a domain fails DMARC, SPF or DKIM, or
build_spf — Use this when someone lists the services that send their email and wants the SPF record to publish, or wants a sender added to the SPF recor
explain_bounce — Use this when someone pastes a bounce message, an SMTP reply such as 550 5.7.26, or an Authentication-Results header and asks what it means
analyze_report — Use this when someone has a DMARC aggregate report and wants to know which senders passed and which failed. The report is the XML, .gz or .z
Who runs the DomainCanary MCP server?
The DomainCanary MCP server at a glance
https://domaincanary.com/mcpQuestions, answered
Is there an official DomainCanary MCP server?
Yes — DomainCanary operates its own remote MCP server at domaincanary.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 DomainCanary to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick DomainCanary in the directory. No account or sign-in is needed. From then on, DomainCanary's tools are available in every client you've connected to gate.
Do I need to host anything?
No. DomainCanary runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the DomainCanary 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 DomainCanary in minutes. No credit card required.
Connect more than just DomainCanary
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up DomainCanary in: Claude · Claude Code · ChatGPT · Cursor · VS Code