How to Use the ROAS Calculator MCP in Claude

Q: Does this MCP Server help me determine my break-even point with Claude Desktop?

Absolutely. The calculatebreakevenroas tool provides the minimum ROAS you need, preventing wasted budget before you even start spending.

Figure out your ad spend profit margins with Claude Desktop.

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Connect ROAS Calculator MCP to Claude Desktop

Create your Vinkius account to connect ROAS Calculator 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 ROAS Calculator with Claude Desktop

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Determine Your True Ad Spend Performance

Need to know if an ad campaign is actually making money? You can run a simple calculation using the `calculate_roas` tool. Just input your media spend and total source revenue, and it gives you the full picture of return on ad spend. This helps you quickly see which channels are performing well versus those that are just burning cash.

Set Your Profitability Floor

Not knowing your break-even point is a huge risk. By calling `calculate_break_even_roas`, the MCP Server tells you the absolute minimum ROAS required to cover costs, given your contribution margin. That number acts as a hard floor for all spending decisions. It's critical data that stops you from overspending on failing channels.

Benchmark Against Industry Norms

Stop guessing what 'good' ROAS looks like. The `get_target_benchmark` tool pulls industry-specific target numbers for your business type. This gives you an immediate external comparison point, letting you know if you're underperforming or doing better than the average player.

Setup guide

Set up ROAS 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 ROAS 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 ROAS 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 roas-calculator-mcp.

json

{
  "mcpServers": {
    "roas-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 ROAS 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.

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Common questions about ROAS Calculator MCP in Claude Desktop

It calculates your Return on Ad Spend by taking media spend and source revenue. You'll get a clear percentage showing how much money you earned for every dollar spent.

Yeah, you can. Because it runs on an MCP, you connect it through your desktop client's standard setup process. The results appear right where you need them.

This server only handles financial metrics, specifically ad spend figures and revenue totals needed to calculate return on ad spend.

Absolutely. The `calculate_break_even_roas` tool provides the minimum ROAS you need, preventing wasted budget before you even start spending.

Yes, the MCP Server supports fetching benchmarks for various business types. You just tell it what industry you're in and get a target number back.

Use it with your favorite AI tools

Connect this server to Cursor, Claude, VS Code, and more.

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