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 Claude Desktop 5 tools — connect in under 2 minutes

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

modelcontextprotocol.io/quickstart/user

Built by Vinkius GDPR 5 Tools IDE

Claude Desktop is Anthropic's native application for interacting with Claude AI models on macOS and Windows. It was the first consumer application to ship with built-in MCP support, making it the reference implementation for the Model Context Protocol standard.

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Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

RecommendedModern Approach — Zero Configuration

Vinkius Desktop App

The modern way to manage MCP Servers — no config files, no terminal commands. Install Fixer.io Currency API and 2,500+ MCP Servers from a single visual interface.

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Classic Setup·json

{
  "mcpServers": {
    "fixerio-currency-api": {
      // Your Vinkius token. get it at cloud.vinkius.com
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* 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.

Claude Desktop is the definitive way to connect Fixer.io Currency API to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 5 tools in the chat interface. ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.

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 Claude Desktop 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 Claude Desktop via MCP

Follow these steps to integrate the Fixer.io Currency API MCP Server with Claude Desktop.

Open Claude Desktop Settings

Go to Settings → Developer → Edit Config to open claude_desktop_config.json

Add the MCP Server

Paste the configuration above into the mcpServers section

Restart Claude Desktop

Close and reopen Claude Desktop to load the new server

Start using Fixer.io Currency API

Look for the 🔌 icon in the chat. your 5 tools are now available

Why Use Claude Desktop with the Fixer.io Currency API MCP Server

Claude Desktop by Anthropic provides unique advantages when paired with Fixer.io Currency API through the Model Context Protocol.

Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available

Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface

Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions

Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network

Fixer.io Currency API + Claude Desktop Use Cases

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

Interactive data exploration: ask Claude to query DNS records, look up WHOIS data, and cross-reference results in a single conversation

Ad-hoc security audits: type a domain name and let Claude enumerate subdomains, check DNS history, and flag configuration anomalies. all through natural language

Executive briefings: generate comprehensive domain intelligence reports by asking Claude to compile findings into a formatted summary

Learning and training: new team members can explore API capabilities conversationally without needing to read documentation

Fixer.io Currency API MCP Tools for Claude Desktop (5)

These 5 tools become available when you connect Fixer.io Currency API to Claude Desktop 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 Claude Desktop

Ready-to-use prompts you can give your Claude Desktop 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 Claude Desktop

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

Server not appearing after restart

Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).

Authentication error

Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.

Tools not showing in chat

Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting. wait a few seconds.

Fixer.io Currency API + Claude Desktop FAQ

Common questions about integrating Fixer.io Currency API MCP Server with Claude Desktop.

How does Claude Desktop discover MCP tools?

When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.

What happens if the MCP server is temporarily unavailable?

Claude Desktop handles disconnections gracefully. if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.

Can I connect multiple MCP servers simultaneously?

Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.

Is there a limit on the number of tools per server?

Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.

Does Claude Desktop support Streamable HTTP transport?

Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL. Claude auto-negotiates the transport protocol.