Spec Driven Development
by formulahendry
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer★ 440MITUpdated 14 months ago
Install
EU VAT rates
Overview
Description from the maker (original English)
Standard VAT rate in any EU member state on any date since 2016. Offline, no API key.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiNot measured yet★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs on your computer
- Transport: stdio
- Category: Other
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on your computer with your user’s permissions (files, network, apps).
- The registry lists no key to fill in.
You need
- npmNode.js installed (for the npx command)
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"eu-vat": {
"command": "npx",
"args": [
"-y",
"@duty27/eu-vat-mcp"
]
}
}
}Run this in your terminal
claude mcp add eu-vat -- npx -y @duty27/eu-vat-mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"eu-vat": {
"command": "npx",
"args": [
"-y",
"@duty27/eu-vat-mcp"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"eu-vat": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@duty27/eu-vat-mcp"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
Runs on your computer; the tool list appears in your AI app after you install it.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account duty27, which owns the repo
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- – Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
- – Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
- … Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints
Compared with others in Otheri
- More stars than 0% of the other 18436 servers in this category
- Published to the registry more recently than 59% of the other 18436 servers in this category
- Basic checks equal to or better than 100% of the other 18436 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is EU VAT rates safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
Is it still maintained?
The GitHub repo last changed –, and the latest version (0.1.1) reached the registry 33 days ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, Tethered Trust
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Remote Desktop Commander
by desktop-commander
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud★ 211Updated 3 days ago
Install
Tethered Trust
by tetheredtrust.com
Fit, compatibility and recall checks for AI agents before they buy: verdicts, evidence, receipts.
Runs in the cloudUpdated today
Install
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
@duty27/eu-vat-mcp
An MCP server that lets an AI assistant answer "what was the VAT rate in Germany on 1 July 2020?" correctly, for all 27 EU member states, any day since 2016.
It runs on your machine, offline, with no API key and no account. The rates are bundled in the package.
Use it
Claude Code
claude mcp add eu-vat -- npx -y @duty27/eu-vat-mcpClaude Desktop, Cursor and other clients (add to the client's MCP config)
{"mcpServers": { "eu-vat": { "command": "npx", "args": ["-y", "@duty27/eu-vat-mcp"] } } }
Then ask: *"Which EU countries changed their standard VAT rate since 2024?"*
Tools
| Tool | Answers |
|---|---|
get_standard_rate | The standard rate in one country on one day (today if no day is given). |
get_rate_history | Every standard rate a country has had, with the first day of each. |
list_rate_changes | Rate changes across the EU, newest first; filter by country and/or a start date. |
list_countries | The 27 member states and their codes (Greece is EL; GR also works). |
All four are read-only and make no network calls.
What it will not do
- Standard rates only. Reduced rates (e-books, food, ...) are not included.
- Lookup, not calculation. It returns the rate. It does not work out net or gross amounts, rounding, whether a sale is reverse-charged, or OSS reports: those are in the Duty27 API.
- Nothing is guessed. An unknown country, a date before 2016-01-01 or a malformed date is returned as an error the assistant can read, never a plausible-looking wrong rate.
- It is a snapshot. Every answer says when the data was last checked (
dataAsOf). A rate that changed after that date appears in the next release. A pull request that updates the data opens automatically when Duty27's published rates change, and is released after a person checks it against the primary source. - The citations are on the web, not in the answers. Every rate change cites the law or tax-authority notice that made it (the 2016 starting rates cite the European Commission's rate table), listed at https://duty27.com/vat-rates/history.
Need more than a rate?
Deciding what to charge and keeping the proof (B2B reverse charge, the EU €10,000 threshold, VIES checks, an archive and OSS reports) is what the Duty27 API does. It is free to try, no credit card.
Same data as the libraries
This server uses exactly the data of the Node, Python and Java libraries from the same repository: one shared source, one hash, one set of test vectors checked in every language and through this server.
Licence
Code: MIT (LICENSE). Rate data: CC BY 4.0 (DATA-LICENSE.md); the answers include the credit it asks for: *Rate data: Duty27 (https://duty27.com/vat-rates/history), CC BY 4.0*.