How do I find my Fixer.io API Key?

Log in to your [**Fixer.io account**](https://fixer.io/dashboard), and you will find your API Key in your dashboard. Copy and paste it below.

What is the base currency for rates?

By default, Fixer.io uses EUR as the base currency. You can specify a different base currency in the `get_latest_exchange_rates` tool if your plan supports it.

Does it support historical exchange rates?

Yes. The `get_historical_exchange_rate` tool retrieves exchange rates for any specific date back to 1999.

Fixer.io Currency API MCP Server for Pydantic AI 5 tools — connect in under 2 minutes

Name: Fixer.io Currency API
Availability: InStock
Author: Vinkius

ai.pydantic.dev/mcp

Built by Vinkius GDPR 5 Tools SDK

Pydantic AI brings type-safe agent development to Python with first-class MCP support. Connect Fixer.io Currency API 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 Fixer.io Currency API "
            "(5 tools)."
        ),
    )

    result = await agent.run(
        "What tools are available in Fixer.io Currency API?"
    )
    print(result.data)

asyncio.run(main())

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* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About Fixer.io Currency API MCP Server

Empower your AI agent to orchestrate your entire financial research and currency auditing workflow with Fixer.io, the authoritative source for real-time exchange rate data. By connecting the Fixer.io API to your agent, you transform complex fiscal searches into a natural conversation. Your agent can instantly retrieve latest rates, audit historical currency trends, and perform precise conversions without you ever touching a financial terminal. Whether you are conducting international business research or managing regional budget constraints, your agent acts as a real-time financial consultant, ensuring your data is always verified and precise.

Pydantic AI validates every Fixer.io Currency API tool response against typed schemas, catching data inconsistencies at build time. Connect 5 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

Rate Auditing — Retrieve real-time exchange rates for over 170 global currencies and maintain a clear view of market changes.
Historical Oversight — Audit historical exchange rates back to 1999 to understand the long-term distribution of currency value instantly.
Conversion Intelligence — Perform precise currency conversions matching the current industry lead in financial accuracy.
Currency Discovery — List all supported symbols in the Fixer.io catalog to identify relevant stylistic markers for your data.
Operational Monitoring — Check API status to ensure your financial research workflow is always operational.

The Fixer.io Currency API MCP Server exposes 5 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 Fixer.io Currency API to Pydantic AI via MCP

Follow these steps to integrate the Fixer.io Currency API 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 5 tools from Fixer.io Currency API with type-safe schemas

Why Use Pydantic AI with the Fixer.io Currency API MCP Server

Pydantic AI provides unique advantages when paired with Fixer.io Currency API 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 Fixer.io Currency API integration code

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

Dependency injection system cleanly separates your Fixer.io Currency API connection logic from agent behavior for testable, maintainable code

Fixer.io Currency API + Pydantic AI Use Cases

Practical scenarios where Pydantic AI combined with the Fixer.io Currency API MCP Server delivers measurable value.

Type-safe data pipelines: query Fixer.io Currency API with guaranteed response schemas, feeding validated data into downstream processing

API orchestration: chain multiple Fixer.io Currency API tool calls with Pydantic validation at each step to ensure data integrity end-to-end

Production monitoring: build validated alert agents that query Fixer.io Currency API and output structured, schema-compliant notifications

Testing and QA: use Pydantic AI's dependency injection to mock Fixer.io Currency API responses and write comprehensive agent tests

Fixer.io Currency API MCP Tools for Pydantic AI (5)

These 5 tools become available when you connect Fixer.io Currency API to Pydantic AI via MCP:

check_api_status

io Currency API. Check if the Fixer.io service is operational

convert_currency_amount

Convert an amount from one currency to another

get_historical_exchange_rate

Get exchange rates for a specific date in the past (YYYY-MM-DD)

get_latest_exchange_rates

Get real-time exchange rates for a base currency

list_supported_currencies

io database. List all currency symbols supported by Fixer.io

Example Prompts for Fixer.io Currency API in Pydantic AI

Ready-to-use prompts you can give your Pydantic AI agent to start working with Fixer.io Currency API immediately.

"Get the latest exchange rates for base currency 'USD' using Fixer.io."

"Convert 100 EUR to JPY."

"What was the exchange rate between EUR and USD on '2010-01-01'?"

Troubleshooting Fixer.io Currency API MCP Server with Pydantic AI

Common issues when connecting Fixer.io Currency API to Pydantic AI through the Vinkius, and how to resolve them.

MCPServerHTTP not found

Update: pip install --upgrade pydantic-ai

Fixer.io Currency API + Pydantic AI FAQ

Common questions about integrating Fixer.io Currency API 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 Fixer.io Currency API MCP integration works identically with OpenAI, Anthropic, Google, or any supported provider.