UK Data: VAT number checks MCP Server

by co-reliness Your server? Claim it

answering

UK Data: VAT number checks is answering right now. Last checked 8 min ago. It exposes 2 tools.

Check a UK or EU VAT number against official sources and get the registered name and address

Uptime history 21 hours of history

21 hours agonow

100.0%

Uptime 24h

75 of 75 checks

Tools

read from the server

189 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: VAT number checks every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add validation --transport http https://ukdata.reliness.co.uk/mcp/validation

Settings → Connectors → Add custom connector, then paste this address

https://ukdata.reliness.co.uk/mcp/validation

~/.codex/config.toml

[mcp_servers.validation]
url = "https://ukdata.reliness.co.uk/mcp/validation"

.cursor/mcp.json

{
  "mcpServers": {
    "validation": {
      "url": "https://ukdata.reliness.co.uk/mcp/validation"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "validation": {
      "type": "http",
      "url": "https://ukdata.reliness.co.uk/mcp/validation"
    }
  }
}

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.

vat

uk_vat_check

Validate a UK VAT registration number against the official HMRC register and return the registered business name and address. For invoicing, supplier checks and VAT reclaim. (cost: 2 credits)

vat_check

Validate a VAT number and get the registered business name and address. EU numbers via the official VIES service, UK numbers via HMRC. Use for invoicing, supplier onboarding, tax and KYB checks. Accepts e.g. IE6388047V, DE811234567, GB553557881. (cost: 2 credits)

Endpoints

URL	Transport	State	Latency	Checked
https://ukdata.reliness.co.uk/mcp/validation	streamable-http	answering	264 ms	8 min ago

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Live EU VAT number checks via VIES with company name/address, VAT formats and EU VAT rates

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UK Data: VAT number checks — questions

Answers built from our own checks of this server.

What can UK Data: VAT number checks do?

It exposes 2 tools, read directly from the server on our last check. Among them: uk_vat_check, vat_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: VAT number checks working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 75 of 75 checks got a reply (100.0%), average response time 189 ms. The bar chart above shows every period we have measured.

How do I connect UK Data: VAT number 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: VAT number checks need an API key?

No. UK Data: VAT number 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: VAT number checks?

It answers our handshake in 189 ms on average, which is faster than 75% 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.