Server data from the Official MCP Registry
Validate EU VAT numbers against the official VIES service with a local pre-check.
About
Validate EU VAT numbers against the official VIES service with a local pre-check.
Remote endpoints: streamable-http: https://neeenja--vies-vat-validator-mcp.apify.actor/mcp
Security Report
The VIES VAT Validator MCP is a read-only tool that forwards VAT numbers to the official EU VIES SOAP API and keeps a memory-only TTL cache, with permissions that match its purpose. The code shows no exfiltration, shell execution, or hardcoded secrets in the reviewed files. Minor observations include the HTTP endpoint relying on an external Bearer token without server-side validation in the shown code, the unauthenticated stdio/HTTP exposure of the paid tools, and the README's reference to a dependency on a truncated countries file that could not be fully reviewed. Supply chain analysis found 4 known vulnerabilities in dependencies (0 critical, 4 high severity).
6 files analyzed · 9 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Install & Connect
Available as Local & Remote
This plugin can run on your machine or connect to a hosted endpoint. during install.
Documentation
View on GitHubFrom the project's GitHub README.
VIES VAT Validator MCP 🇪🇺
VIES VAT Validator MCP validates EU VAT numbers through the official free VIES SOAP API, wrapped with a local format pre-check + free TTL cache and bilingual (中文 / English) error codes. A "regulatory must-have" compliance tool for cross-border e-commerce and trade sellers.
Current version: 1.0.1 · License: MIT · Trust: built read-only, no secret exfiltration, self-healing bilingual errors.
| It lives at | Link |
|---|---|
| MCP endpoint | https://neeenja--vies-vat-validator-mcp.apify.actor/mcp |
| Apify Store | https://apify.com/neeenja/vies-vat-validator-mcp |
| Source | https://github.com/PanStories/vies-vat-validator-mcp |
| Featured on | Sartbot Featured |
English
Why this exists
- Regulatory must-have — EU B2B transactions require verifying the counterparty's VAT number (reverse charge / compliance proof).
- VIES is slow and flaky — the official SOAP endpoint rate-limits and goes down often, so a cache + graceful degradation are mandatory.
- Zero cold-start cost — a free official data source wrapped with a thin layer + bilingual, explainable output, sold per-event.
What you get
| Capability | Notes | Pricing |
|---|---|---|
validate_vat | free local format check, then optional live VIES verification; structured + bilingual errors | $0.0005 / event |
check_vat_format | pure local regex format check — no network, free | free |
list_supported_countries | supported countries — native name + local VAT term + 中文/EN | free |
get_error_codes | full bilingual error-code table | free |
| resources | vat://error-codes / vat://supported-countries / vat://spec | free |
| prompts | vat_compliance_guide / explain_vat_result | free |
Covers EU 27 + GB + XI (Northern Ireland). Every country also carries its native name and — far more useful — the local term for the VAT number, which is what people actually search for:
| 代码 Code | 母语名 Native | 当地 VAT 叫法 Local VAT term | 中文 | English | EU |
|---|---|---|---|---|---|
| AT | Österreich | UID-Nummer | 奥地利 | Austria | ✅ |
| BE | België / Belgique | BTW-nummer / numéro de TVA | 比利时 | Belgium | ✅ |
| BG | България | ДДС номер | 保加利亚 | Bulgaria | ✅ |
| CY | Κύπρος / Kıbrıs | Αριθμός ΦΠΑ | 塞浦路斯 | Cyprus | ✅ |
| CZ | Česko | DIČ | 捷克 | Czech Republic | ✅ |
| DE | Deutschland | USt-IdNr. | 德国 | Germany | ✅ |
| DK | Danmark | CVR-nummer | 丹麦 | Denmark | ✅ |
| EE | Eesti | KMKR number | 爱沙尼亚 | Estonia | ✅ |
| EL | Ελλάδα | Αριθμός ΦΠΑ | 希腊 | Greece | ✅ |
| ES | España | NIF (IVA) | 西班牙 | Spain | ✅ |
| FI | Suomi | ALV-numero | 芬兰 | Finland | ✅ |
| FR | France | numéro de TVA | 法国 | France | ✅ |
| HR | Hrvatska | PDV broj | 克罗地亚 | Croatia | ✅ |
| HU | Magyarország | ÁFA-szám | 匈牙利 | Hungary | ✅ |
| IE | Ireland / Éire | VAT number | 爱尔兰 | Ireland | ✅ |
| IT | Italia | Partita IVA | 意大利 | Italy | ✅ |
| LT | Lietuva | PVM kodas | 立陶宛 | Lithuania | ✅ |
| LU | Lëtzebuerg / Luxembourg | numéro TVA | 卢森堡 | Luxembourg | ✅ |
| LV | Latvija | PVN numurs | 拉脱维亚 | Latvia | ✅ |
| MT | Malta | VAT number | 马耳他 | Malta | ✅ |
| NL | Nederland | btw-nummer | 荷兰 | Netherlands | ✅ |
| PL | Polska | NIP | 波兰 | Poland | ✅ |
| PT | Portugal | NIF | 葡萄牙 | Portugal | ✅ |
| RO | România | cod de TVA | 罗马尼亚 | Romania | ✅ |
| SE | Sverige | momsregistreringsnummer | 瑞典 | Sweden | ✅ |
| SI | Slovenija | ID za DDV | 斯洛文尼亚 | Slovenia | ✅ |
| SK | Slovensko | IČ DPH | 斯洛伐克 | Slovakia | ✅ |
| GB | United Kingdom | VAT registration number | 英国 | United Kingdom | — |
| XI | Northern Ireland | VAT registration number (XI) | 北爱尔兰 | Northern Ireland | — |
叫法取当地商务常用写法;部分国家有不止一种官方接受的写法,表中列最主要的那种。 Terms follow common local business usage — some countries accept more than one form; the main one is shown.
Quick start (local)
npm install
npm run build
npm start # stdio transport, connects to any MCP client
npm test # vitest, all green
npm run verify # generate verify-report.html with real payloads
Connect with an MCP client (stdio)
{
"mcpServers": {
"vat-validator": {
"command": "node",
"args": ["/abs/path/vies-vat-validator-mcp/dist/index.js"]
}
}
}
Connect over HTTP (remote / Apify)
Point your MCP client at the Streamable HTTP endpoint:
https://neeenja--vies-vat-validator-mcp.apify.actor/mcp
with the header Authorization: Bearer <APIFY_TOKEN>.
Example calls
Format pre-check (free)
{ "name": "check_vat_format", "arguments": { "vat": "FR123456789" } }
→ { "formatValid": true, "normalized": "FR123456789", "pattern": "^([A-Z]{2})?\\d{9}$" }
Live verification (paid event)
{ "name": "validate_vat", "arguments": { "vat": "FR123456789", "useCache": true, "live": true } }
→ { "valid": true, "formatValid": true, "viesValid": true, "source": "vies", "name": "...", "address": "..." }
Error codes (excerpt)
| Code | 中文 | EN |
|---|---|---|
VAT_FORMAT_INVALID | 格式不符 | format mismatch |
VAT_VIES_INVALID | VIES 判定无效 | VIES says invalid |
VIES_MS_UNAVAILABLE | 成员国系统不可用 | member state down |
VIES_TIMEOUT | 超时 | timeout |
NETWORK_ERROR | 网络错误 | network error |
Full table via get_error_codes or vat://error-codes.
Deploy (Apify Pay-Per-Event)
npm run apify:login # complete KYC yourself first (one-time)
npm run apify:validate # validate actor.json
npm run apify:push # publish to Apify Store
Pricing lives in .actor/actor.json → pricingEvents: format / error / country queries are free; only mcp-validate-vat is billed.
Design red lines
- No
express/soap/fast-xml-parser: the SOAP envelope is hand-built and the response parsed with namespace-agnostic regex. - Never crash: VIES faults / network errors map to bilingual error codes.
- Free layer (format check + cache) guarantees zero cold-start cost.
See SPEC.md for the full contract.
简体中文
为什么做这个
- 监管刚需 —— 欧盟 B2B 交易要求核验对方 VAT 税号(逆向征收 / 合规凭证)。
- VIES 又慢又抖 —— 官方 SOAP 接口频繁限流、偶发停机,缓存 + 优雅降级是必选项。
- 零冷启动成本 —— 免费官方数据源,叠加一层封装 + 可解释的双语输出,按事件计费。
你能拿到什么
| 能力 | 说明 | 计费 |
|---|---|---|
validate_vat | 先做免费本地格式校验,再按需调用欧盟官方 VIES 接口核验真实性;结构化 + 双语错误 | $0.0005 / 次 |
check_vat_format | 纯本地正则格式校验,零网络、零成本 | 免费 |
list_supported_countries | 返回支持国家(母语名 + 当地 VAT 叫法 + 中/英) | 免费 |
get_error_codes | 返回完整中英双语错误码表 | 免费 |
| resources | vat://error-codes / vat://supported-countries / vat://spec | 免费 |
| prompts | vat_compliance_guide / explain_vat_result | 免费 |
覆盖 EU 27 + GB + XI(北爱尔兰)。每个国家还带母语名,以及更实用的当地对 VAT 号的叫法——这才是当地人真正会搜的词:
| 代码 Code | 母语名 Native | 当地 VAT 叫法 Local VAT term | 中文 | English | EU |
|---|---|---|---|---|---|
| AT | Österreich | UID-Nummer | 奥地利 | Austria | ✅ |
| BE | België / Belgique | BTW-nummer / numéro de TVA | 比利时 | Belgium | ✅ |
| BG | България | ДДС номер | 保加利亚 | Bulgaria | ✅ |
| CY | Κύπρος / Kıbrıs | Αριθμός ΦΠΑ | 塞浦路斯 | Cyprus | ✅ |
| CZ | Česko | DIČ | 捷克 | Czech Republic | ✅ |
| DE | Deutschland | USt-IdNr. | 德国 | Germany | ✅ |
| DK | Danmark | CVR-nummer | 丹麦 | Denmark | ✅ |
| EE | Eesti | KMKR number | 爱沙尼亚 | Estonia | ✅ |
| EL | Ελλάδα | Αριθμός ΦΠΑ | 希腊 | Greece | ✅ |
| ES | España | NIF (IVA) | 西班牙 | Spain | ✅ |
| FI | Suomi | ALV-numero | 芬兰 | Finland | ✅ |
| FR | France | numéro de TVA | 法国 | France | ✅ |
| HR | Hrvatska | PDV broj | 克罗地亚 | Croatia | ✅ |
| HU | Magyarország | ÁFA-szám | 匈牙利 | Hungary | ✅ |
| IE | Ireland / Éire | VAT number | 爱尔兰 | Ireland | ✅ |
| IT | Italia | Partita IVA | 意大利 | Italy | ✅ |
| LT | Lietuva | PVM kodas | 立陶宛 | Lithuania | ✅ |
| LU | Lëtzebuerg / Luxembourg | numéro TVA | 卢森堡 | Luxembourg | ✅ |
| LV | Latvija | PVN numurs | 拉脱维亚 | Latvia | ✅ |
| MT | Malta | VAT number | 马耳他 | Malta | ✅ |
| NL | Nederland | btw-nummer | 荷兰 | Netherlands | ✅ |
| PL | Polska | NIP | 波兰 | Poland | ✅ |
| PT | Portugal | NIF | 葡萄牙 | Portugal | ✅ |
| RO | România | cod de TVA | 罗马尼亚 | Romania | ✅ |
| SE | Sverige | momsregistreringsnummer | 瑞典 | Sweden | ✅ |
| SI | Slovenija | ID za DDV | 斯洛文尼亚 | Slovenia | ✅ |
| SK | Slovensko | IČ DPH | 斯洛伐克 | Slovakia | ✅ |
| GB | United Kingdom | VAT registration number | 英国 | United Kingdom | — |
| XI | Northern Ireland | VAT registration number (XI) | 北爱尔兰 | Northern Ireland | — |
叫法取当地商务常用写法;部分国家有不止一种官方接受的写法,表中列最主要的那种。 Terms follow common local business usage — some countries accept more than one form; the main one is shown.
快速开始(本地)
npm install
npm run build
npm start # stdio 传输,接任意 MCP 客户端
npm test # vitest 全绿
npm run verify # 生成真实 payload 验证报告 verify-report.html
与 MCP 客户端对接(stdio)
{
"mcpServers": {
"vat-validator": {
"command": "node",
"args": ["/abs/path/vies-vat-validator-mcp/dist/index.js"]
}
}
}
通过 HTTP 对接(远程 / Apify)
把你的 MCP 客户端指向 Streamable HTTP 端点:
https://neeenja--vies-vat-validator-mcp.apify.actor/mcp
并带上请求头 Authorization: Bearer <APIFY_TOKEN>。
调用示例
格式预校验(免费)
{ "name": "check_vat_format", "arguments": { "vat": "FR123456789" } }
→ { "formatValid": true, "normalized": "FR123456789", "pattern": "^([A-Z]{2})?\\d{9}$" }
实查(付费事件)
{ "name": "validate_vat", "arguments": { "vat": "FR123456789", "useCache": true, "live": true } }
→ { "valid": true, "formatValid": true, "viesValid": true, "source": "vies", "name": "...", "address": "..." }
错误码(节选)
| 代码 | 中文 | EN |
|---|---|---|
VAT_FORMAT_INVALID | 格式不符 | format mismatch |
VAT_VIES_INVALID | VIES 判定无效 | VIES says invalid |
VIES_MS_UNAVAILABLE | 成员国系统不可用 | member state down |
VIES_TIMEOUT | 超时 | timeout |
NETWORK_ERROR | 网络错误 | network error |
完整表见 get_error_codes 或 vat://error-codes。
部署(Apify Pay-Per-Event)
npm run apify:login # 本人先完成 KYC(一次性)
npm run apify:validate # 校验 actor.json
npm run apify:push # 上架
计费见 .actor/actor.json 的 pricingEvents:格式 / 错误 / 国家查询免费,仅 mcp-validate-vat 计费。
设计红线
- 不引入
express/soap/fast-xml-parser:SOAP 信封手写、响应用命名空间无关的正则提取。 - 永不崩溃:VIES 故障 / 网络错误全部映射为双语错误码。
- 免费层(格式校验 + 缓存)保证冷启动零成本。
完整契约见 SPEC.md。
繁體中文
為什麼做這個
- 監管剛需 —— 歐盟 B2B 交易要求核驗對方 VAT 稅號(逆向徵收 / 合規憑證)。
- VIES 又慢又抖 —— 官方 SOAP 介面頻繁限流、偶發停機,快取 + 優雅降級是必選項。
- 零冷啟動成本 —— 免費官方資料源,疊加一層封裝 + 可解釋的雙語輸出,按事件計費。
你能拿到什麼
| 能力 | 說明 | 計費 |
|---|---|---|
validate_vat | 先做免費本地格式校驗,再依需求呼叫歐盟官方 VIES 介面核驗真實性;結構化 + 雙語錯誤 | $0.0005 / 次 |
check_vat_format | 純本地正則格式校驗,零網路、零成本 | 免費 |
list_supported_countries | 回傳支援國家(母語名 + 當地 VAT 叫法 + 中/英) | 免費 |
get_error_codes | 回傳完整中英雙語錯誤碼表 | 免費 |
| resources | vat://error-codes / vat://supported-countries / vat://spec | 免費 |
| prompts | vat_compliance_guide / explain_vat_result | 免費 |
涵蓋 EU 27 + GB + XI(北愛爾蘭)。每個國家還帶母語名,以及更實用的當地對 VAT 號的叫法——這才是當地人真正會搜的詞:
| 代码 Code | 母语名 Native | 当地 VAT 叫法 Local VAT term | 中文 | English | EU |
|---|---|---|---|---|---|
| AT | Österreich | UID-Nummer | 奥地利 | Austria | ✅ |
| BE | België / Belgique | BTW-nummer / numéro de TVA | 比利时 | Belgium | ✅ |
| BG | България | ДДС номер | 保加利亚 | Bulgaria | ✅ |
| CY | Κύπρος / Kıbrıs | Αριθμός ΦΠΑ | 塞浦路斯 | Cyprus | ✅ |
| CZ | Česko | DIČ | 捷克 | Czech Republic | ✅ |
| DE | Deutschland | USt-IdNr. | 德国 | Germany | ✅ |
| DK | Danmark | CVR-nummer | 丹麦 | Denmark | ✅ |
| EE | Eesti | KMKR number | 爱沙尼亚 | Estonia | ✅ |
| EL | Ελλάδα | Αριθμός ΦΠΑ | 希腊 | Greece | ✅ |
| ES | España | NIF (IVA) | 西班牙 | Spain | ✅ |
| FI | Suomi | ALV-numero | 芬兰 | Finland | ✅ |
| FR | France | numéro de TVA | 法国 | France | ✅ |
| HR | Hrvatska | PDV broj | 克罗地亚 | Croatia | ✅ |
| HU | Magyarország | ÁFA-szám | 匈牙利 | Hungary | ✅ |
| IE | Ireland / Éire | VAT number | 爱尔兰 | Ireland | ✅ |
| IT | Italia | Partita IVA | 意大利 | Italy | ✅ |
| LT | Lietuva | PVM kodas | 立陶宛 | Lithuania | ✅ |
| LU | Lëtzebuerg / Luxembourg | numéro TVA | 卢森堡 | Luxembourg | ✅ |
| LV | Latvija | PVN numurs | 拉脱维亚 | Latvia | ✅ |
| MT | Malta | VAT number | 马耳他 | Malta | ✅ |
| NL | Nederland | btw-nummer | 荷兰 | Netherlands | ✅ |
| PL | Polska | NIP | 波兰 | Poland | ✅ |
| PT | Portugal | NIF | 葡萄牙 | Portugal | ✅ |
| RO | România | cod de TVA | 罗马尼亚 | Romania | ✅ |
| SE | Sverige | momsregistreringsnummer | 瑞典 | Sweden | ✅ |
| SI | Slovenija | ID za DDV | 斯洛文尼亚 | Slovenia | ✅ |
| SK | Slovensko | IČ DPH | 斯洛伐克 | Slovakia | ✅ |
| GB | United Kingdom | VAT registration number | 英国 | United Kingdom | — |
| XI | Northern Ireland | VAT registration number (XI) | 北爱尔兰 | Northern Ireland | — |
叫法取当地商务常用写法;部分国家有不止一种官方接受的写法,表中列最主要的那种。 Terms follow common local business usage — some countries accept more than one form; the main one is shown.
快速開始(本地)
npm install
npm run build
npm start # stdio 傳輸,接任意 MCP 用戶端
npm test # vitest 全綠
npm run verify # 產生真實 payload 驗證報告 verify-report.html
與 MCP 用戶端對接(stdio)
{
"mcpServers": {
"vat-validator": {
"command": "node",
"args": ["/abs/path/vies-vat-validator-mcp/dist/index.js"]
}
}
}
透過 HTTP 對接(遠端 / Apify)
將你的 MCP 用戶端指向 Streamable HTTP 端點:
https://neeenja--vies-vat-validator-mcp.apify.actor/mcp
並帶上請求標頭 Authorization: Bearer <APIFY_TOKEN>。
呼叫範例
格式預校驗(免費)
{ "name": "check_vat_format", "arguments": { "vat": "FR123456789" } }
→ { "formatValid": true, "normalized": "FR123456789", "pattern": "^([A-Z]{2})?\\d{9}$" }
實查(付費事件)
{ "name": "validate_vat", "arguments": { "vat": "FR123456789", "useCache": true, "live": true } }
→ { "valid": true, "formatValid": true, "viesValid": true, "source": "vies", "name": "...", "address": "..." }
錯誤碼(節選)
| 代碼 | 中文 | EN |
|---|---|---|
VAT_FORMAT_INVALID | 格式不符 | format mismatch |
VAT_VIES_INVALID | VIES 判定無效 | VIES says invalid |
VIES_MS_UNAVAILABLE | 成員國系統不可用 | member state down |
VIES_TIMEOUT | 逾時 | timeout |
NETWORK_ERROR | 網路錯誤 | network error |
完整表見 get_error_codes 或 vat://error-codes。
部署(Apify Pay-Per-Event)
npm run apify:login # 本人先完成 KYC(一次性)
npm run apify:validate # 校驗 actor.json
npm run apify:push # 上架
計費見 .actor/actor.json 的 pricingEvents:格式 / 錯誤 / 國家查詢免費,僅 mcp-validate-vat 計費。
設計紅線
- 不引入
express/soap/fast-xml-parser:SOAP 信封手寫、回應用命名空間無關的正則提取。 - 永不崩潰:VIES 故障 / 網路錯誤全部映射為雙語錯誤碼。
- 免費層(格式校驗 + 快取)保證冷啟動零成本。
完整契約見 SPEC.md。
License
MIT — see LICENSE.
Privacy
Read-only and stateless — no accounts, no personal data collected. Submitted VAT numbers are forwarded to the official EU VIES service and may be held in a memory-only cache. See PRIVACY.md.
Support · 赞助 · 贊助
EN — VIES VAT Validator MCP is open source (MIT), ad-free. It is funded by the community, not by ads. If it powers your agents or workflow, please support it:
- ☕ Ko-fi (the Sponsor ❤️ button on this repo routes here): https://ko-fi.com/panstories
简体中文 — VIES VAT Validator MCP 开源(MIT)、无广告,由社区资助而非广告。若它支撑了你的智能体或工作流,欢迎赞助:点本仓库的 Sponsor 按钮(跳转 Ko-fi)或前往 https://ko-fi.com/panstories
繁體中文 — VIES VAT Validator MCP 開源(MIT)、無廣告,由社群資助而非廣告。若它支撐了你的智能體或工作流,歡迎贊助:點本倉庫的 Sponsor 按鈕(導向 Ko-fi)或前往 https://ko-fi.com/panstories
Thank you! · 谢谢 · 謝謝 💙
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