How to Use the Freelancer Budget Prover MCP in Claude

Q: How do I install Freelancer Budget Prover on Claude Desktop?

Open your claudedesktopconfig.json file and add the server to your mcpServers configuration with the execution command. Restart the desktop app, and you will see the tool icon ready for financial calculations.

Run the Freelancer Budget Prover directly inside Claude Desktop to calculate your true net take-home pay and stop underpricing your contract work.

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Connect Freelancer Budget Prover MCP to Claude Desktop

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

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Setup Freelancer Budget Prover with Claude Desktop

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Spot rate fallacies directly in Claude Desktop

The `validate_freelancer_budget` tool runs locally in your desktop client to dismantle the myth that hourly rate times 2,080 equals your annual salary. Your agent analyzes your target billable hours against a realistic 60% to 70% utilization rate, exposing the unpaid hours you spend on admin and pitching. By running this MCP server on your machine, you get immediate calculations on how non-billable gaps eat into your gross targets. It forces a cold, hard look at your actual desk hours before you sign another bad contract.

Uncover self-employment taxes and overhead costs

The `validate_freelancer_budget` tool strips away the optimism bias by deducting self-employment taxes, health insurance, and software costs from your projected revenue. Your agent processes these expenses locally to show you the exact dollar amount that actually lands in your bank account. This local MCP integration ensures your financial inputs never leave your machine while calculating the 35% to 45% overhead chunk. You see the net reality of your business expenses right in your chat window.

Plan for late payments and seasonal dry spells

The `validate_freelancer_budget` tool simulates cash flow delays, modeling what happens when clients take 45 days to pay. Your agent maps out these payment gaps to calculate the emergency fund you need to survive dry seasons without panic. Connecting this tool to your desktop client lets you stress-test your pricing floor against real-world payment delays. You get an honest assessment of your cash reserves without manually building spreadsheets.

Setup guide

Set up Freelancer Budget Prover 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 Freelancer Budget Prover 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 Freelancer Budget Prover 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 freelancer-budget-prover-mcp.

json

{
  "mcpServers": {
    "freelancer-budget-prover-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 Freelancer Budget Prover. 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.

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Common questions about Freelancer Budget Prover MCP in Claude Desktop

Open your `claude_desktop_config.json` file and add the server to your `mcpServers` configuration with the execution command. Restart the desktop app, and you will see the tool icon ready for financial calculations.

Yes, you can connect the server as a custom connector in your browser settings. Paste the hosted URL from Vinkius to run calculations directly on the web platform.

The tool uses standard self-employment tax baselines to evaluate your budget. Your desktop agent applies these rates to calculate your net take-home from your gross hourly inputs.

It calculates utilization rates down to the hour. The tool shows you how much time goes to non-billable tasks like admin, accounting, and sales.

Yes, all rate, expense, and tax data parsed by the server is processed in a secure, ephemeral V8 sandbox. Vinkius ensures your inputs are never stored or used for model training.

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