MCP server

ドメイン番人

io.github.j-doi/domain-bannin

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

ドメインの設定を調べる MCP サーバー。SPF / DKIM / DMARC・DNS・SSL 証明書・セキュリティヘッダ・サブドメイン・類似ドメインを、公開情報だけで確認します。登録不要・無料。

Working at last checkAbout 306 tokens per request once connected1 tools

https://domain-bannin.jp/api/mcp

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Tools: 1
Token cost: About 306 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 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 domain-bannin https://domain-bannin.jp/api/mcp

Claude Desktop

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

Codex (config.toml)

[mcp_servers.domain-bannin]
url = "https://domain-bannin.jp/api/mcp"

Gemini CLI

{"mcpServers":{"domain-bannin":{"httpUrl":"https://domain-bannin.jp/api/mcp"}}}

Cursor

{"mcpServers":{"domain-bannin":{"url":"https://domain-bannin.jp/api/mcp"}}}

VS Code

{"servers":{"domain-bannin":{"type":"http","url":"https://domain-bannin.jp/api/mcp"}}}

Antigravity

agy mcp add domain-bannin https://domain-bannin.jp/api/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":"domain-bannin","server_url":"https://domain-bannin.jp/api/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"domain-bannin","server_url":"https://domain-bannin.jp/api/mcp"}

domain_diagnose ~306 tokens
Runs a comprehensive health check on a public domain: SPF / DKIM / DMARC for the headline score, plus optional details on email-auth adjacent records (MX, BIMI, MTA-STS, TLS-RPT, DKIM key length), DNS infrastructure (NS, DNSSEC, CAA, AAAA, SOA, TXT), web security (HTTPS, certificate, HSTS, HTTP/2-3,

DomainCanary
Check a domain's DMARC, SPF and DKIM, build SPF records, explain bounces, read DMARC reports.
DataNexus MCP
Public data intelligence for AI agents — CVE, compliance, patents, contracts, domains.
how.is domain & IP intelligence
Pay-per-call DNS, WHOIS, domain age, TLS, email auth, blocklists, IP intel. Free samples.
Couryo free email tools
Free, no login: verify an email address, check SPF/DKIM/DMARC, explain SMTP errors, build SPF/DMARC.
Powerline Email Tools
Email deliverability checks: SPF, DKIM, DMARC, BIMI, MTA-STS, blacklists, headers, spam words
Dmarc Spf Audit
Complete domain email-auth audit in one call: SPF with RFC 7208 lookup counting, DKIM selector pr...
MailVakt
Use when email lands in spam: audits SPF, DKIM, DMARC, MX and returns the DNS records to fix it.
Domain Mail Check
Check a domain's email DNS, whether Gmail and Outlook accept its mail, and its registration.

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