How to Use the FIRE Calculator MCP in Claude

Estimate your early retirement timeline right from Claude Desktop.

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Works with every AI agent you already use

…and any MCP-compatible client

MCP Servers — Included with Plan

Connect FIRE Calculator MCP to Claude Desktop

Create your Vinkius account to connect FIRE Calculator to Claude Desktop — we handle the hosting, security, and runtime updates so you don't have to. No server setup required.

GDPR Included with Plan

Setup FIRE Calculator with Claude Desktop

Ask AI about this MCP

ChatGPT

Claude

Perplexity Vinkius runs on Gemini

Gemini

Grok

Set hard numbers for your future

This MCP calculates the exact cost of your early retirement. Your agent calls `get_lifestyle_targets` to reverse-engineer the capital you need based on safe withdrawal rates. You stop guessing about your target number. The math dictates the reality of your required nest egg.

Map your path with this MCP

Tracking progress against hard data is mandatory for financial independence. The `calculate_milestones` tool projects your compounding interest and triggers alerts at specific net worth thresholds. Your AI client plots out the exact years you hit Coast FIRE, Barista FIRE, and full financial independence. You see the timeline clearly.

Test different savings rates

Modeling variable savings rates shows you the real cost of lifestyle creep. Running `simulate_contribution_impact` lets your agent calculate how a change in monthly investments delays or accelerates your exit date. You get immediate feedback on the opportunity cost of a new car or a career change. The numbers show exactly how many extra months you will work.

Setup guide

Set up FIRE Calculator MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The FIRE Calculator MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the FIRE Calculator MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under fire-calculator-mcp.

json

{
  "mcpServers": {
    "fire-calculator-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by FIRE Calculator. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

Why Choose Vinkius

Vinkius connects your tools to AI with real-time monitoring and automatic cost savings — all from one dashboard.

Connect FIRE Calculator now

Real-time monitoring

Live

visibility into every interaction

Connect your favorite tools to your AI and see exactly what's happening — every request, every response, in real time.

Built-in savings

60%

lower AI costs

Vinkius compresses data between your apps and your AI automatically. Lower bills every month — no configuration required.

Single dashboard

One

place for every integration

Every tool your AI connects to, managed from a single screen. One account, complete control.

Common questions about FIRE Calculator MCP in Claude Desktop

You can add it via the Extensions UI in your settings. If you prefer manual setup, edit your claude_desktop_config.json file and add the Vinkius remote URL. Restart the app to see the tools.

Your agent runs the numbers when you ask it to project your timeline. It takes your current savings and age to map out the exact years you hit your targets.

Yes. You can paste the Vinkius HTTPS URL directly into the Integrations menu on the web version. Your agent gets the exact same MCP access as the desktop app.

Spreadsheets require manual updates when your assumptions change. Connected to your AI client, you just type out a new scenario and the math updates instantly.

Your income figures and monthly savings rates stay between your machine and the Vinkius infrastructure. This MCP processes the raw numbers without storing your personal identity.

Use it with your favorite AI tools

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