MCP server

DomainRef - domain and email security check Official

dev.domainref/domainref

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

Pay-per-call domain and email security check: SPF, DKIM, DMARC, TLS, DNSSEC, BIMI, with exact fixes.

Working at last checkVerified publisher: domainref.devAbout 655 tokens per request once connected2 tools

https://domainref.dev/mcp

At a glance

Type: MCP server
Publisher: domainref.dev (verified by the MCP Registry)
Status: Working at last check
Tools: 2
Token cost: About 655 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 25 Oct 2026, 20:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http domainref https://domainref.dev/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.domainref]
url = "https://domainref.dev/mcp"

Gemini CLI

{"mcpServers":{"domainref":{"httpUrl":"https://domainref.dev/mcp"}}}

Cursor

{"mcpServers":{"domainref":{"url":"https://domainref.dev/mcp"}}}

VS Code

{"servers":{"domainref":{"type":"http","url":"https://domainref.dev/mcp"}}}

Antigravity

agy mcp add domainref https://domainref.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"domainref","server_url":"https://domainref.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"domainref","server_url":"https://domainref.dev/mcp"}

domain_age ~310 tokens
PAID ($0.005). Not for registries without RDAP, e.g. .za/.co.za, .me, .de, .io, .eu: refused free (422). Use when you need to know which registrar holds a domain, how old it is, and whether it is a risky newly-registered domain. $0.005. From the registry's RDAP: registrar name and IANA ID (no regist
domain_check ~345 tokens
PAID ($0.01). Use when mail lands in spam, before an email campaign, for vendor due diligence or to confirm a Microsoft 365 tenant: graded SPF, DKIM, DMARC, MX, MTA-STS, DNSSEC, CAA, TLS and domain age, plus BIMI and blocklist info, each with the exact fix record. Non-intrusive. $0.01 per domain. Re

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