Vatstack MCP by usefulapi

Vatstack MCP by usefulapi

Use your Vatstack account from Claude, Cursor, or any MCP client. Check VAT numbers against government registers, look up VAT rates, and read plan hit usage. Hosted, no local install: connect with your own credentials.

Live endpoint: https://vatstack.usefulapi.io/mcp · Homepage: https://usefulapi.io

Connect

• Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://vatstack.usefulapi.io/mcp.
• Claude Code: claude mcp add --transport http vatstack https://vatstack.usefulapi.io/mcp, then run /mcp to log in.
• VS Code: Add to VS Code.
• Cursor and other clients: add the URL as a remote MCP server:

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

Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your Vatstack credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/vatstack/

On first connect you provide a Vatstack secret key from your Vatstack dashboard, under your API keys. Use the secret key, not the public key. The server validates it and stores it per user. No keys go in config files.

Tools

Tool	Type	What it does
vatstack_validate_vat	write	Validate a VAT number
vatstack_list_validations	read	List VAT validations
vatstack_get_validation	read	Get a VAT validation
vatstack_get_rates	read	List VAT rates
vatstack_get_rate_by_ip	read	Get the VAT rate for an IP address
vatstack_get_hits	read	Get plan hit usage
vatstack_usage_status	meta	Usage status (free-tier meter)
vatstack_request_feature	meta	Request a missing feature
vatstack_upgrade	meta	Upgrade to Pro or Pro+
vatstack_cancel_subscription	meta	Cancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

Plan	Price	Limit
Free	$0	50 tool calls / month
Pro (per user)	$9/mo or $90/yr (2 months free)	10,000 tool calls / month
Pro+ (per user)	$39/mo or $390/yr (2 months free)	100,000 tool calls / month

Each paid plan covers this server only. Ask your AI to run vatstack_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with vatstack_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with vatstack_upgrade before then undoes the cancel. Or write to [email protected].

License

MIT — see LICENSE. Documentation only; the server is hosted.