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UK Data: Email and domain checks MCP Server

answering

UK Data: Email and domain checks is answering right now. Last checked 9 min ago. It exposes 2 tools.

Email and domain checks: deliverable, disposable, role address, MX, SPF, DMARC

Uptime history 69 hours of history
69 hours agonow
100.0%
Uptime 24h
91 of 91 checks
2
Tools
read from the server
109 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check UK Data: Email and domain checks every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

run in your terminal
claude mcp add email-domain --transport http https://ukdata.reliness.co.uk/mcp/email-domain
Settings → Connectors → Add custom connector, then paste this address
https://ukdata.reliness.co.uk/mcp/email-domain
~/.codex/config.toml
[mcp_servers.email-domain]
url = "https://ukdata.reliness.co.uk/mcp/email-domain"
.cursor/mcp.json
{
  "mcpServers": {
    "email-domain": {
      "url": "https://ukdata.reliness.co.uk/mcp/email-domain"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "email-domain": {
      "type": "http",
      "url": "https://ukdata.reliness.co.uk/mcp/email-domain"
    }
  }
}

Available tools 2

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

domain
domain_check
A, AAAA, MX, NS, SPF and DMARC records for a domain via DNS over HTTPS. (cost: 1 credit)
email
email_check
Syntax, MX, disposable, role and free-provider checks on an email address (no message is sent). (cost: 1 credit)

Endpoints

URLTransportStateLatencyChecked
https://ukdata.reliness.co.uk/mcp/email-domain streamable-http answering 82 ms 9 min ago

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UK Data: Email and domain checks — questions

Answers built from our own checks of this server.

What can UK Data: Email and domain checks do?
It exposes 2 tools, read directly from the server on our last check. Among them: domain_check, email_check. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is UK Data: Email and domain checks working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 109 ms. The bar chart above shows every period we have measured.
How do I connect UK Data: Email and domain checks?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does UK Data: Email and domain checks need an API key?
No. UK Data: Email and domain checks completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 2 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is UK Data: Email and domain checks?
It answers our handshake in 109 ms on average, which is faster than 93% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.