
Connect Rule of 40 Analyzer to ChatGPT, Claude and Gemini
Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Measure software business health with growth and margin metrics.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
Waiting for input…
Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Your AI does the work. We keep it safe and sound.
No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.
Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

Each Connector runs inside its own sealed environment.
Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.
One switch stops every agent. Instantly.
One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.
Spending limits that pause instead of surprise.
Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.
Three controls, built into the layer your AI connects through.
Curated set · 3 capabilities
We ship only the actions that matter.
01-03
3 capabilities in this set.
Part of 3 available through Rule of 40 Analyzer.
- 01
Calculate rule of 40
This capability calculates a single period Rule of 40 score and assigns a performance tier.
- 02
Compare to sector peers
This capability compares a company's specific score against industry benchmarks for different sectors.
- 03
Compute ttm metrics
This capability aggregates quarterly data points to determine the trailing twelve month performance score.
Real work
What teams actually run
Portfolio Health Checks
Compare multiple portfolio companies against SaaS sector benchmarks.
Quarterly Reporting
Convert quarterly growth and margin numbers into TTM performance trends.
Investment Due Diligence
Determine if a target company's efficiency falls into the Elite or Risk tiers.
Internal Performance Tracking
Monitor how changes in growth or margins shift your company's performance tier.
Automate a task
Put Rule of 40 Analyzer to work on one thing.
Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.
One connector, every AI
Rule of 40 Analyzer works with the most popular AI clients.
These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.
Claude
ChatGPT
Gemini
Perplexity
Grok
Microsoft Copilot
Cursor
VS Code
Windsurf
JetBrains
Cline
LangChain
Vercel AI SDK
Lovable
Z.ai
Raycast
Qwen Code
Kimi Code
Le ChatBuilding your own app? The connector is yours to use.
You don't need a client to put Rule of 40 Analyzer to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.
Observed, not estimated
719ms average. Fast in production.
Rule of 40 Analyzer is checked daily against the live service.
- Fastest day
- 542ms
- Slowest day
- 874ms
- 14-day trend
- Slowing+16%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 3 capabilities arrive ready to run.
Preview access · not provider authentication
The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Rule of 40 Analyzer, so you can see the experience inside your AI.
It does not authenticate your account with Rule of 40 Analyzer. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Rule of 40 Analyzer Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_02WXqki63QPE6fEoj7NgbXVtw0eGXkFkiidG9S14/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — Rule of 40 Analyzer capabilities are ready to use.
{
"mcpServers": {
"rule-of-40-analyzer-mcp": {
"url": "https://edge.vinkius.com/vk_preview_02WXqki63QPE6fEoj7NgbXVtw0eGXkFkiidG9S14/mcp"
}
}
}
Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline
Step-by-step instructions for each client are in the guide. How to connect
Guided setup for Claude? Set up Rule of 40 Analyzer in Claude and other AIs
Who it's for
Built for the work Rule of 40 Analyzer owners hand off.
This MCP is built for finance professionals and operators managing software businesses.
- 01
SaaS CFOs
Hand off raw quarterly growth and margin data to get instant tier classifications.
- 02
Venture Capitalists
Use the capability to benchmark portfolio companies against industry sector averages.
- 03
FP&A Analysts
Automate the calculation of TTM metrics from multiple quarterly data points.
FAQ
Questions Rule of 40 Analyzer owners ask.
- 01
What is the Rule of 40?
It is a metric used to evaluate SaaS business health by adding revenue growth rates to profitability margins like EBITDA or FCF.
- 02
Which AI clients can use this MCP?
You can use this MCP with any compatible client, including Claude, Cursor, Windsurf, and VS Code.
- 03
How are performance tiers determined?
The calculate_rule_of_40 capability assigns a company to the Risk, Healthy, or Elite tier based on its calculated score.
- 04
Can I compare my company to specific industries?
Yes, the compare_to_sector_peers capability allows you to benchmark against sectors like Software (SaaS), Fintech, and Infrastructure/Cloud.
- 05
How do I calculate TTM performance?
Use the compute_ttm_metrics capability to aggregate your quarterly data into a trailing twelve month score.
- 06
How do I interpret the performance tiers?
A score below 40% is considered 'Risk', a score between 40% and 60% is 'Healthy', and a score above 60% is 'Elite'.
- 07
Can I analyze historical trends?
Yes, by using the compute_ttm_metrics capability, you can provide quarterly data to calculate the Trailing Twelve Months (TTM) score and see if your performance trend is improving or declining.
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Connect Rule of 40 Analyzer to Claude, Cursor, ChatGPT & more
