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UK Data: UK business calculators

uk.co.reliness/uk-business-calculators ยท v1.4.0

UK business calculators: VAT, stamp duty, late payment interest, redundancy, holiday, sick pay

Connect Remote server

Terminal
claude mcp add --transport http uk-business-calculators https://ukdata.reliness.co.uk/mcp/uk-business-calculators --header "Authorization: Bearer <YOUR_API_KEY>"
~/.cursor/mcp.json
{
  "mcpServers": {
    "uk-business-calculators": {
      "url": "https://ukdata.reliness.co.uk/mcp/uk-business-calculators",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "uk-business-calculators": {
      "type": "http",
      "url": "https://ukdata.reliness.co.uk/mcp/uk-business-calculators",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://ukdata.reliness.co.uk/mcp/uk-business-calculators

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools 8 found in our last check

  • vat

    Add or extract UK VAT at standard (20%), reduced (5%), zero or a custom rate. (cost: 1 credit)

  • stamp_duty

    SDLT on a property purchase in England or Northern Ireland: standard, first-time buyer, additional property, or non-residential. (cost: 1 credit)

  • late_payment_interest

    Statutory interest and fixed compensation on a late commercial invoice (base rate plus 8%). (cost: 1 credit)

  • redundancy_pay

    Statutory redundancy pay from age, years of service and weekly pay. (cost: 1 credit)

  • holiday_entitlement

    Statutory paid holiday for a working pattern, pro rata by months. (cost: 1 credit)

  • mortgage_repayment

    Monthly mortgage payment for a UK home loan, using the latest Bank of England average quoted rate for the deal type (or your own rate), plus total interest and what the payment becomes when the fixed deal ends if you do not remortgage. (cost: 1 credit)

  • loan_repayment

    Monthly payment, total repaid and total interest on a personal, car or business loan at a given annual rate over a number of months or years. (cost: 1 credit)

  • statutory_sick_pay

    Statutory sick pay total for a number of weeks off. (cost: 1 credit)

Headers

NameDescription
Authorization
Optional, secret
Optional. Bearer <key> for more than the free daily allowance; free key from POST https://ukdata.reliness.co.uk/keys

Details

Endpointhttps://ukdata.reliness.co.uk/mcp/uk-business-calculators (Streamable HTTP)
First published4 Nov 2026
Last updated4 Nov 2026
Registry nameuk.co.reliness/uk-business-calculators

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