Integration · Accounting
Connect Claude & ChatGPT to VIES API
Ask your AI whether a customer's EU VAT number is valid and which company name and address VIES has on file. Through VIES API it checks numbers, returns the address split into parts or exactly as VIES gives it, tells you whether VIES and each member state's registry are available, and shows your account's plan and remaining checks.
Free plan, no credit card. Takes about a minute.
Try asking
“Is DE123456789 a valid VAT number?”
The AI checks the number in VIES and tells you whether it is valid, with the company name and address.
“Check these five VAT numbers from our new customers.”
It checks each number in turn and tells you which are valid and which are not.
“Does the address on this order match what VIES has for the customer's VAT number?”
It gets the registered name and address split into parts, so you can compare them line by line.
What your AI can do
VAT number checks
Check an EU VAT number with its country prefix and get a clear answer on whether it is valid.
Company name and address
Get the registered company name and address, either split into parts or unparsed exactly as VIES returns it.
Service and account status
See whether VIES and each member state's registry are available, and check your plan and remaining checks.
“Show me exactly what VIES returns for this number.”
It returns the company name and address as VIES gives them, without parsing.
“Why can't I check an Italian VAT number right now?”
It checks whether VIES and each member state's registry are available, so you can see if one is down.
“How many checks do we have left?”
It reads your VIES API account status, including your plan and remaining checks.
4 tools for VIES API
These tools are switched on when you connect. You can switch any of them off, or require your approval before it runs.
check_vat_numberCheck an EU VAT number in VIES by `euvat_number` (with country prefix, e.g. DE123456789). Returns whether it is valid plus the company name and address split into parts.check_vat_number_rawCheck an EU VAT number in VIES by `euvat_number` and return the company name and address as VIES gives it, unparsed.get_account_statusGet your VIES API account status, including plan and remaining checks.get_vies_statusCheck whether the EU VIES system and each member state's registry are currently available.
Set up in three steps
- 1
Pick the app
Create a free PipMCP account and choose VIES API from the app list.
- 2
Paste your key
Enter two values from your account at viesapi.eu: the API key identifier as the API key ID, and the API key itself as the API key. You get both when you register at viesapi.eu.
- 3
Add the link to your AI
You get a personal MCP link. Add it to Claude, ChatGPT or Cursor:
- Click your name, then Settings › Connectors › Add custom connector.
- Paste your link as the Remote MCP server URL.
- Switch it on from the + menu in a chat.
Questions
What can the AI do in VIES API?
The AI can check EU VAT numbers in VIES and get the company name and address, parsed or as VIES returns it. It can also check whether VIES and each member state's registry are available, and read your account status with plan and remaining checks.
Does the AI see my VIES API API key?
No. Your VIES API credentials are encrypted at rest and never shown to the AI. After you save them, they are not shown again, not even to you. The AI only sees the results of the tools it calls.
Can I control what the AI is allowed to do?
Yes. You choose which tools are switched on. All four VIES API tools only look things up and change no data, and you can still require approval before a tool runs. Every tool call is logged, so you can see which numbers were checked.
Does it work with ChatGPT?
Yes. In ChatGPT go to Settings › Apps & Connectors › Advanced and turn on Developer mode, then add your PipMCP link. Developer mode needs a paid ChatGPT plan: Plus, Pro, Business or Enterprise. The same link also works in Claude (Settings › Connectors › Add custom connector), Cursor and other MCP clients.
What does it cost?
PipMCP has a free plan with no credit card required. Paid plans bill per completed task. You also need your own VIES API account.
What format should the VAT number have?
Use the full number with its country prefix, for example DE123456789. The check returns whether the number is valid, plus the company name and address that VIES has for it.
Let your AI work in VIES API today.
Start free. Your key stays encrypted, and you decide what the AI may do.
Connect VIES API freePipMCP is not affiliated with VIES API. Product names are trademarks of their owners.