
Connect Cap Table Modeling Engine to ChatGPT and Claude
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. Run precise dilution and exit waterfall simulations instantly.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
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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 · 4 capabilities
We ship only the actions that matter.
01-04
4 capabilities in this set.
Part of 4 available through Cap Table Modeling.
- 01
Calculate exit waterfall
This capability determines the specific cash amounts distributed to shareholders during a liquidity event. It follows the payout order for all stakeholders.
- 02
Convert instruments
This capability simulates the conversion of SAFEs and convertible notes into equity. It uses your target valuation and specific terms to find the new ownership levels.
- 03
Query current ownership
This capability pulls the current distribution of ownership across the company. It shows you exactly who holds what percentage right now.
- 04
Simulate dilution
Use this to model how issuing new equity or expanding an option pool affects existing shareholders. It calculates the resulting ownership shifts.
Real work
What teams actually run
Fundraising Prep
Model how a new seed or Series A round will dilute the current cap table.
Option Pool Planning
Calculate the exact ownership impact of increasing the employee option pool.
Exit Strategy Analysis
Run a waterfall calculation to see what shareholders walk away with in a sale.
Convertible Note Tracking
Simulate how notes convert into equity when a target valuation is hit.
One connector, every AI
Cap Table Modeling 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 Cap Table Modeling 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
877ms average. Fast in production.
Cap Table Modeling is checked daily against the live service.
- Fastest day
- 798ms
- Slowest day
- 1073ms
- 14-day trend
- Improving-12%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 4 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 Cap Table Modeling, so you can see the experience inside your AI.
It does not authenticate your account with Cap Table Modeling. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Cap Table Modeling Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_xhZS3nDPDLPaWfjERg3YCP3dbjcFRRu9zL1Ym9oZ/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 — Cap Table Modeling capabilities are ready to use.
{
"mcpServers": {
"cap-table-modeling-engine-mcp": {
"url": "https://edge.vinkius.com/vk_preview_xhZS3nDPDLPaWfjERg3YCP3dbjcFRRu9zL1Ym9oZ/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 Cap Table Modeling in Claude and other AIs
Who it's for
Built for the work Cap Table Modeling owners hand off.
This MCP is built for people managing startup equity and financial planning.
- 01
Founders
Use it to model how new investment rounds will affect your own ownership.
- 02
Finance Leads
Hand off complex waterfall and dilution math to your agent for quick modeling.
- 03
Legal Professionals
Use it to simulate the impact of convertible instrument terms on the cap table.
FAQ
Questions Cap Table Modeling owners ask.
- 01
How does this MCP handle SAFE conversions?
It uses the convert_instruments capability to simulate how SAFEs turn into equity based on your specific valuation and terms.
- 02
Can I use this with Cursor or VS Code?
Yes, this MCP works with any MCP-compatible client including Cursor, Windsurf, and VS Code.
- 03
Does it calculate exit payouts?
Yes, the calculate_exit_waterfall capability determines how cash is distributed to all shareholders during a liquidity event.
- 04
How do I see current ownership?
You can use the query_current_ownership capability to get the current distribution of the company.
- 05
Where is the data hosted?
Vinkius hosts and manages the MCP, so you don't have to run it locally or manage credentials yourself.
- 06
How can I see the current ownership distribution?
You can use the query_current_ownership capability to retrieve a detailed list of shareholders, their shares owned, and their current ownership percentages.
- 07
How does the capability handle convertible note conversion?
The convert_instruments capability calculates the conversion price by selecting the lower of the price derived from the valuation cap or the price derived from the discount rate.
- 08
Can I simulate the impact of a new funding round?
Yes, use simulate_dilution to model how expanding the option pool or issuing new equity affects existing ownership percentages.
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Connect Cap Table Modeling to Claude, Cursor, ChatGPT & more
