Vatstack MCP by usefulapi MCP Server

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answering

Vatstack MCP by usefulapi is answering right now. Last checked 4 min ago. It exposes 6 tools. Last commit 11 Nov 2026.

Validate VAT numbers, look up VAT rates and review past checks and plan hits in Vatstack.

Uptime history 55 hours of history

55 hours agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

247 ms

Response time

average over 24h

Stars

last commit 11 Nov 2026

What changed 4

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 10 November 2026. No other catalogue keeps this.

11 Nov a tool changed version

10 Nov a tool changed version3 times that day

and 2 more, back to 10 November 2026

Nothing serious here today

Today is the operative word: we check Vatstack MCP by usefulapi 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 4 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add vatstack --transport http https://vatstack.usefulapi.io/mcp

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

https://vatstack.usefulapi.io/mcp

~/.codex/config.toml

[mcp_servers.vatstack]
url = "https://vatstack.usefulapi.io/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "vatstack": {
      "url": "https://vatstack.usefulapi.io/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "vatstack": {
      "type": "http",
      "url": "https://vatstack.usefulapi.io/mcp"
    }
  }
}

Available tools 6

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

vatstack

vatstack_get_hits

Get the hits used this month and the plan capacity, for supplies and validations. Check it before a batch of validations. Vatstack: GET /v1/hits.

vatstack_get_rate_by_ip

Get the VAT rate that applies to an IPv4 or IPv6 address, from its geolocated country. Leave the address empty to use the requesting address. Vatstack: GET /v1/rates/geolocate.

vatstack_get_rates

List standard and reduced VAT rates by country, including rates for digital products. Filter by a two-letter country code or EU member state. Vatstack: GET /v1/rates.

vatstack_get_validation

Get one VAT validation by its id, with the register result and any error code. Vatstack: GET /v1/validations/{id}.

vatstack_list_validations

List past VAT number validations, newest first. Filter by batch, number, type or request date range. Vatstack: GET /v1/validations.

vatstack_validate_vat

Check a VAT number against the official government register. Returns whether the company is active and VAT-registered, with its name and address when the register gives them. Each check creates a validation record and uses one hit of the plan. Vatstack: POST /v1/validations.

Endpoints

URL	Transport	State	Latency	Checked
https://vatstack.usefulapi.io/mcp	streamable-http	answering	153 ms	4 min ago

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Vatstack MCP by usefulapi — questions

Answers built from our own checks of this server.

What can Vatstack MCP by usefulapi do?

It exposes 6 tools, read directly from the server on our last check. Among them: vatstack_get_hits, vatstack_get_rate_by_ip, vatstack_get_rates, vatstack_get_validation, vatstack_list_validations, vatstack_validate_vat. 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 Vatstack MCP by usefulapi working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 247 ms. The bar chart above shows every period we have measured.

How do I connect Vatstack MCP by usefulapi?

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 Vatstack MCP by usefulapi need an API key?

No. Vatstack MCP by usefulapi completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Vatstack MCP by usefulapi?

It answers our handshake in 247 ms on average, which is faster than 54% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Vatstack MCP by usefulapi open source?

The code is open source: it is published under the MIT licence, written in JavaScript, 1 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at vatstack.usefulapi.io, which runs on its operator's own terms.