MCP.Market

DomainCheck MCP server

online · 100% uptime
by youraitools.co·co.youraitools/domaincheck·v0.1.2
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Domain and email trust checks for agents: DNS, SPF/DMARC, disposable email. By Crypto Money Maker

C65/100grade C
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Safety scan
C65/100

full report

Adoption
New

Little public usage data yet

Reviews

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If you have run it, two minutes of your experience saves the next person an afternoon.

DomainCheck tools (2, 1 write)

write = sends, deletes, buys or posts
  • check_domainFree

    Check a domain before your agent trusts a link, a sender or a counterparty: does it exist, where does its mail go, SPF and DMARC policy, nameservers, DNSSEC. Free tier (preview). For registration age, registrar, parking detection and a 0-100 risk score use the paid x402 endpoint /v1/domain.

  • check_emailwrite actionFree

    Check an email address an agent is about to store, email or trust: syntax, disposable / throwaway provider, role account, free webmail. Free tier (no network). For MX, mail auth, domain age and a verdict (valid | risky | undeliverable) use the paid x402 endpoint /v1/email.

Public scan report

scanner v0.1.10 · 2026-10-25 · same rubric, same numbers if you re-run it

1 high1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 741ms20/20
  • Tool poisoning2 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenanceno repository listed3/15
  • Maintainer identityendpoint served from the registry-verified namespace domain8/10

Findings (2)

  • highWrite-action tools reachable without authenticationauth.open-write
  • lowNo source repository listedmaint.no-repo
Overall 65/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How DomainCheck compares

Against every graded Email MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
65/100
higher than 20% of 916 Email servers
Tools
2
the typical Email server has 7
Tools that change things
50%
typical: 25%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote Email server answers 100%
Response time
234 ms
faster than 60% of 609 Email servers

What its tools let an agent do: 1 read · 1 change

Install DomainCheck in Claude Code, Cursor or VS Code

claude mcp add --transport http domaincheck https://api.youraitools.co/domaincheck/mcp
Add to Cursor

DomainCheck: common questions

Is DomainCheck MCP server safe?
With care: it is graded C, so read the findings first (65/100). Read the DomainCheck safety report
How do I install DomainCheck?
It runs remotely at api.youraitools.co. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does DomainCheck need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is DomainCheck maintained?
The latest release is v0.1.2.
Is DomainCheck up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of DomainCheck?
Servers from other publishers that do the same job: ContrastAPI MCP server, Palisade MCP server and Forward Email MCP server.
How does DomainCheck compare with other Email MCP servers?
safety score 65/100 (higher than 20% of 916 Email servers); tools 2 (the typical Email server has 7); tools that change things 50% (typical: 25%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to DomainCheck

Same job from other publishers: the closest match first, then the best rated.

  • ContrastAPI
    55 tools, 7 Resources, Sigma rules, email SPF/DMARC, MITRE, CVE/KEV, risk_score. No key.
    B
  • Palisade
    Monitor and manage email authentication (SPF, DKIM, DMARC, MTA-STS, BIMI) for your domains.
    A
  • Forward Email
    Privacy-focused email: domains, DNS verification, aliases, SMTP sending, mailboxes and calendars.
    A
  • BlackVeil DNS & Email Security Scanner
    DNS and email security scanner with 81 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.
    B
  • Mailkite
    Send email, manage domains, DNS, webhooks, templates, and inbound routing on MailKite
    A

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