Magic Number Calculator MCP, Ready to Go
Use the Magic Number Calculator MCP with Claude or Cursor to analyze SaaS GTM efficiency and revenue growth metrics instantly to see your ROI.
No credit card required. Experience the power of this integration risk-free.
Measure SaaS growth efficiency and revenue ROI in real time.
Works with every AI agent you already use
…and any MCP-compatible client
How fast is the Magic Number Calculator Connector?
Average time for the server to become ready for requests over the last 14 days, measured until the initialize / tools/list handshake completes. Metrics are updated daily between 00:00 and 04:00 UTC. Create a free account, use this Connector on Vinkius Cloud, and connect it to your AI agent in seconds.
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What AI agents can do with Magic Number Calculator: 3 Tools for SaaS Growth Metrics
Get a clear picture of your growth efficiency with three specialized tools for revenue and spend analysis.
Calculate magic number
Get the raw Magic Number ratio based on your revenue and spending data. This helps you see the direct relationship between spend and new ARR.
Evaluate gtm health summary
Get a full diagnostic summary of your overall Go-To-Market engine health. This provides a high-level look at your scaling efficiency.
Get efficiency rating
See which performance tier your growth falls into, like Inefficient or Excellent. This gives you a clear label for your current trajectory.
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You're looking at one of 5,800+ managed Connectors. The real value isn't the catalog. It's the control plane that secures, governs, audits, and manages every interaction between your agents and the tools they use.
No Shadow AI
Every agent action is visible, approved, and auditable. Nothing runs outside your governance.
Absolute agent control
Fine-grained permissions for every agent, MCP, and tool. Instantly revoke access and audit every execution.
Cost control per token
Spend broken down to the token, tool, and agent. Budgets and hard limits. No surprise invoices.
Managed & monitored infra
We operate the runtime, authentication, scaling, retries, and monitoring. Your team manages AI, not infrastructure.
Data protection, DLP by design
Sensitive data is filtered before reaching the model. Access is governed so agents receive only the information they're allowed to use.
Token optimization, real savings
Lower AI costs by delivering the right context instead of unnecessary tools. Better accuracy, faster responses, and fewer wasted tokens.
Magic Number Calculator for SaaS GTM Efficiency
This is for SaaS founders and growth leads who need to justify their marketing spend to investors or leadership. It is for the person tired of manual spreadsheets and who needs a clear signal on whether their growth is healthy or just expensive.
Growth Marketing Manager
They use this to prove that their campaigns are actually driving efficient revenue.
SaaS Founder
They use this to check if they're burning too much cash to acquire new customers.
Finance Analyst
They use this to benchmark the company's unit economics against industry standards.
VC Associate
They use this to quickly vet the efficiency of a portfolio company's growth engine.
Frequently Asked Questions
What is the Magic Number in SaaS? +
The Magic Number is a ratio that compares your Net New ARR to your Sales and Marketing spend. It tells you how many dollars of new revenue you generate for every dollar you spend on growth.
How does the Magic Number Calculator help my growth? +
It gives you a clear signal on whether your growth engine is healthy or inefficient. By tracking this number over time, you can see if your marketing efforts are becoming more effective as you scale.
Can I use this to see if my marketing spend is too high? +
Yes, the Magic Number Calculator identifies if your spend is yielding the expected revenue. It categorizes your performance into tiers like Inefficient or Excellent to help you spot issues quickly.
What does an Excellent rating mean for my business? +
An Excellent rating means your growth engine is highly efficient. It suggests that you are successfully converting your S&M spend into high-quality revenue at a rate that supports healthy scaling.
How do I get a health summary for my GTM engine? +
You can simply ask your AI agent to evaluate your GTM health by providing your recent revenue and spend figures. The Connector will then generate a diagnostic summary of your scaling efficiency.
Is the Magic Number Calculator good for VC reporting? +
It is a great tool for VC reporting because it provides a standardized metric for growth efficiency. It helps you prove to investors that your growth is sustainable and capital-efficient.
What is the Magic Number? +
The Magic Number is a SaaS metric that measures the efficiency of your Sales and Marketing spending relative to the revenue growth it generates.
How do I interpret the results? +
A ratio below 0.5 is considered inefficient, a ratio of 0.75 or higher is healthy, and a ratio of 1.0 or greater is excellent.
What inputs are required for the calculation? +
You need to provide your Net New ARR from the current quarter and your Sales and Marketing spend from the previous quarter.
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