Is an API Key required for isvat?

No. isvat is a free and public service. This server works out of the box without any static credentials required.

Which countries are supported?

isvat supports VAT validation for all countries within the European Union (EU).

Does the agent retrieve company addresses?

The isvat API primarily returns a boolean validation status. For detailed company metadata, including names and addresses, consider using the `VATNode` or `BrasilAPI` servers.

isvat MCP Server for Pydantic AI 3 tools — connect in under 2 minutes

Name: isvat
Availability: InStock
Author: Vinkius

ai.pydantic.dev/mcp

Built by Vinkius GDPR 3 Tools SDK

Pydantic AI brings type-safe agent development to Python with first-class MCP support. Connect isvat through Vinkius and every tool is automatically validated against Pydantic schemas. catch errors at build time, not in production.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from pydantic_ai import Agent
from pydantic_ai.mcp import MCPServerHTTP

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    server = MCPServerHTTP(url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")

    agent = Agent(
        model="openai:gpt-4o",
        mcp_servers=[server],
        system_prompt=(
            "You are an assistant with access to isvat "
            "(3 tools)."
        ),
    )

    result = await agent.run(
        "What tools are available in isvat?"
    )
    print(result.data)

asyncio.run(main())

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About isvat MCP Server

Empower your AI agent to orchestrate your entire European VAT validation workflow with isvat, the simple and fast API for tax ID verification. By connecting isvat to your agent, you transform complex VAT lookups into a natural conversation. Your agent can instantly verify if a European VAT number is valid without you ever touching a manual lookup tool. Whether you are conducting financial due diligence or managing international invoicing, your agent acts as a real-time compliance assistant, ensuring your tax data is always verified.

Pydantic AI validates every isvat tool response against typed schemas, catching data inconsistencies at build time. Connect 3 tools through Vinkius and switch between OpenAI, Anthropic, or Gemini without changing your integration code. full type safety, structured output guarantees, and dependency injection for testable agents.

What you can do

VAT Auditing — Verify if any European VAT number is valid and retrieve immediate confirmation status.
Batch Oversight — Validate multiple VAT numbers simultaneously to maintain strict control over large contact lists.
Compliance Intelligence — Identify valid tax IDs for businesses across the European Union to assist in financial auditing.
Operational Monitoring — Check API status to ensure your verification workflow is always operational.

The isvat MCP Server exposes 3 tools through the Vinkius. Connect it to Pydantic AI in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect isvat to Pydantic AI via MCP

Follow these steps to integrate the isvat MCP Server with Pydantic AI.

Install Pydantic AI

Run pip install pydantic-ai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save to agent.py and run: python agent.py

Explore tools

The agent discovers 3 tools from isvat with type-safe schemas

Why Use Pydantic AI with the isvat MCP Server

Pydantic AI provides unique advantages when paired with isvat through the Model Context Protocol.

Full type safety: every MCP tool response is validated against Pydantic models, catching data inconsistencies before they reach your application

Model-agnostic architecture. switch between OpenAI, Anthropic, or Gemini without changing your isvat integration code

Structured output guarantee: Pydantic AI ensures tool results conform to defined schemas, eliminating runtime type errors

Dependency injection system cleanly separates your isvat connection logic from agent behavior for testable, maintainable code

isvat + Pydantic AI Use Cases

Practical scenarios where Pydantic AI combined with the isvat MCP Server delivers measurable value.

Type-safe data pipelines: query isvat with guaranteed response schemas, feeding validated data into downstream processing

API orchestration: chain multiple isvat tool calls with Pydantic validation at each step to ensure data integrity end-to-end

Production monitoring: build validated alert agents that query isvat and output structured, schema-compliant notifications

Testing and QA: use Pydantic AI's dependency injection to mock isvat responses and write comprehensive agent tests

isvat MCP Tools for Pydantic AI (3)

These 3 tools become available when you connect isvat to Pydantic AI via MCP:

check_api_status

Check if the isvat API is operational

validate_eu_vat

Verify if a European VAT number is valid

validate_multiple_vat

Verify multiple European VAT numbers

Example Prompts for isvat in Pydantic AI

Ready-to-use prompts you can give your Pydantic AI agent to start working with isvat immediately.

"Validate the European VAT number 'DE123456789' using isvat."

"Check if French VAT 'FR12345678901' is valid."

"Verify multiple VAT numbers: DE123, FR456."

Troubleshooting isvat MCP Server with Pydantic AI

Common issues when connecting isvat to Pydantic AI through the Vinkius, and how to resolve them.

MCPServerHTTP not found

Update: pip install --upgrade pydantic-ai

isvat + Pydantic AI FAQ

Common questions about integrating isvat MCP Server with Pydantic AI.

How does Pydantic AI discover MCP tools?

Create an MCPServerHTTP instance with the server URL. Pydantic AI connects, discovers all tools, and generates typed Python interfaces automatically.

Does Pydantic AI validate MCP tool responses?

Yes. When you define result types as Pydantic models, every tool response is validated against the schema. Invalid data raises a clear error instead of silently corrupting your pipeline.

Can I switch LLM providers without changing MCP code?

Absolutely. Pydantic AI abstracts the model layer. your isvat MCP integration works identically with OpenAI, Anthropic, Google, or any supported provider.