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Connect US Corporate Tax Calculator 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. Get accurate federal and state tax estimates for your business.

Ask AI about this Connector

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.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

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.

A futuristic MCP client docking bay
V8 Isolate01

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.

Kill Switch02

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.

FinOps per User03

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.

Capability set01 / 01

01-03

3 capabilities in this set.

Part of 3 available through US Corporate Tax Calculator.

  1. 01

    Calculate tax liability

    This capability calculates the specific tax breakdown for a single profit amount in a given state.

  2. 02

    Get state tax rate

    This capability retrieves the hardcoded corporate income tax rate for a specific US state.

  3. 03

    Compare business structures

    This capability provides a side-by-side comparison of tax burdens for different business structures.

Real work

What teams actually run

01

Entity Selection

Compare the tax impact of being an LLC versus a C-Corp for a specific profit target.

02

State Expansion Planning

Check how moving operations to a different state changes your total tax liability.

03

Profit Projections

Estimate how much of your projected annual profit will go toward taxes.

04

Tax Modeling

Run multiple scenarios with different profit amounts to see tax scaling.

Automate a task

Put US Corporate Tax Calculator 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

US Corporate Tax Calculator 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.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put US Corporate Tax Calculator 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

662ms average. Fast in production.

US Corporate Tax Calculator is checked daily against the live service.

Daily averagePeak 832ms
Oct 3Today
Fastest day
519ms
Slowest day
832ms
14-day trend
Slowing+17%

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 US Corporate Tax Calculator, so you can see the experience inside your AI.

It does not authenticate your account with US Corporate Tax Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

US Corporate Tax Calculator Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_Zv2elrupiGwOcbI8kZDZKh44aUqqSGICFaAqRmiG/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — US Corporate Tax Calculator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "us-corporate-tax-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_Zv2elrupiGwOcbI8kZDZKh44aUqqSGICFaAqRmiG/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 US Corporate Tax Calculator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work US Corporate Tax Calculator owners hand off.

This MCP is built for professionals managing business finances and entity planning.

  • 01

    Accountants

    Use it to quickly run tax scenarios for clients during planning sessions.

  • 02

    Business Owners

    Check potential tax liabilities for different business structures as you scale.

  • 03

    Financial Analysts

    Run comparative models to project profitability under different tax regimes.

FAQ

Questions US Corporate Tax Calculator owners ask.

  • 01

    What business structures can I compare?

    You can compare the tax burdens of C-Corps, S-Corps, and LLCs.

  • 02

    Does this include federal taxes?

    Yes, the MCP accounts for the 21% flat federal rate in its calculations.

  • 03

    How does it handle state taxes?

    The MCP uses hardcoded state-level corporate income tax rates to provide estimates.

  • 04

    Can I use this with Claude?

    Yes, you can connect this MCP to any MCP-compatible client including Claude.

  • 05

    Do I need to host the MCP myself?

    No, Vinkius hosts and manages the MCP for you, so it is ready to use immediately.

  • 06

    How can I find the tax rate for a specific state?

    You can use the get_state_tax_rate capability by providing the two-letter US state abbreviation (e.g., 'NY' for New York).

  • 07

    Does this capability calculate federal taxes?

    Yes. The calculate_tax_liability capability calculates both the 21% federal corporate tax and the applicable state-level tax.

  • 08

    Can I compare different business structures?

    Yes, the compare_business_structures capability provides a side-by-side comparison of tax burdens for C-Corp, S-Corp, and LLC entities.

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