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ClaudeChatGPTPerplexityGeminiMicrosoft CopilotRaycastMeta AIGrokZ.aiQwenKimi
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Use ISS Calculator with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Calculate Service Tax (ISS) based on municipality rates and service types.

Included with plan

Ask AI about this Connector

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.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 3 capabilities

The complete ISS Calculator capability set.

These are the exact actions your AI can choose when you ask it to work with ISS Calculator.

Capability set01 / 01

01-03

3 capabilities in this set.

Part of 3 available through ISS Calculator.

  1. 01

    Calculate tax liability

    Calculate final tax liability

  2. 02

    Check withholding status

    Check if tax withholding is required

  3. 03

    Get applicable rate

    Get the tax rate for a service in a municipality

Observed, not estimated

669ms average. Fast in production.

ISS Calculator is checked daily against the live service.

Daily averagePeak 765ms
Aug 20Today
Fastest day
462ms
Slowest day
765ms
14-day trend
Slowing+26%

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 ISS Calculator, so you can see the experience inside your AI.

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

ISS Calculator Connector

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

Connector linkhttps://edge.vinkius.com/vk_preview_HlSPdLjtJSxPtEgVdNPHFyH8MRO0Ac1yUuvQ55cL/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 — ISS Calculator capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "iss-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_HlSPdLjtJSxPtEgVdNPHFyH8MRO0Ac1yUuvQ55cL/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

FAQ

Questions ISS Calculator owners ask.

  • 01

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

    You can use the get_applicable_rate capability by providing the municipality name and the service type.

  • 02

    Does the calculator handle tax withholding?

    Yes. Use check_withholding_status to see if the service taker is responsible for paying the tax at source.

  • 03

    Can I include deductions in my calculation?

    Yes, using calculate_tax_liability, you can provide a deduction amount. The capability will only apply it if the service type allows for deductions in that municipality.

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