How to Use the LTV:CAC Calculator MCP in Windsurf

Get the financial math right every time. Calculate LTV:CAC with Windsurf.

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Connect LTV:CAC Calculator MCP to Windsurf

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

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Setup LTV:CAC Calculator with Windsurf

Ask AI about this MCP

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Claude

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Gemini

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Analyze Marketing Spend

Windsurf's agent runs `calculate_cac` against your raw data set. Just feed it a list of channels, total spend, and new customers acquired; the tool spits out the true Cost per Acquisition for each source. It doesn't just show you numbers, either. It gives you an immediate picture of where your money is actually going, making those marketing budget meetings less painful.

Determine Customer Value

Need to know how much a customer is worth? Use `calculate_ltv` with Windsurf. You input the Average Revenue Per User (ARPU), your churn rate, and gross margin percentage, and it instantly spits out the Lifetime Value for that user. That LTV number is what you're really trying to protect. Knowing it helps you decide exactly how much you can afford to spend getting them through the door.

Assess Overall Profitability

The `evaluate_profitability` tool ties everything together automatically. Give it your calculated LTV and CAC figures, and Windsurf tells you the ratio, how long it'll take to break even (payback period), and if you're actually making money. This is the final word on whether your current acquisition strategy holds up under financial scrutiny.

Setup guide

Set up LTV:CAC Calculator MCP in Windsurf

Prerequisites

Windsurf IDE installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP configuration

Click the Cascade assistant icon in the sidebar, then click the hammer icon (🔨) at the top of the panel. Select "Configure" to open ~/.codeium/windsurf/mcp_config.json.
2

Add the LTV:CAC Calculator MCP

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

Refresh MCPs

Go back to the hammer icon (🔨) in Cascade and click "Refresh". Windsurf will detect the new server. No full restart is needed — the connection is hot-reloaded.
4

Verify in Cascade

Start a new Cascade conversation and ask something like "Show my LTV:CAC Calculator payment history." If connected, Cascade will call the LTV:CAC Calculator tools directly. You will see a green dot next to the server name in the MCP panel.

mcp_config.json

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

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Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by LTV:CAC Calculator API. 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 LTV:CAC Calculator MCP in Windsurf

It tells you if growth is sustainable. You can't just spend money hoping it works; you need a solid ratio. Using this MCP Server lets your agent test out different acquisition budgets against real-world financial models.

Yep, it's rock solid. The tool deals with core financial metrics like total spend, new customers acquired, ARPU, gross margin percentage, and churn rate.

Absolutely. Because it's an MCP on Vinkius, your agent can chain this server with others. You could run CAC analysis, feed the result into LTV calculation, and then pipe that final verdict to a reporting tool.

It means you stop guessing. If your ratio is low, you know exactly what needs fixing—is it the acquisition cost (CAC) or are customers leaving too fast (LTV)? The tool points to that weak spot.

Yes. Since it uses the churn rate as a core input, changing your assumed retention data immediately changes the calculated Lifetime Value and subsequently adjusts the overall ratio.

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