UK business calculators for AI agents

The arithmetic agents get wrong: VAT, stamp duty, statutory late payment interest, redundancy pay, holiday entitlement, statutory sick pay, with dated rate tables. Call it from any agent over MCP or REST, no key needed to start.

Connect

MCP server (Streamable HTTP): https://ukdata.reliness.co.uk/mcp/uk-business-calculators

claude mcp add --transport http uk-business-calculators https://ukdata.reliness.co.uk/mcp/uk-business-calculators

{
  "mcpServers": {
    "uk-data": {
      "url": "https://ukdata.reliness.co.uk/mcp/uk-business-calculators"
    }
  }
}

Tools

vat

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

stamp_duty

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

late_payment_interest

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

redundancy_pay

Statutory redundancy pay from age, years of service and weekly pay. 1 credit.

holiday_entitlement

Statutory paid holiday for a working pattern, pro rata by months. 1 credit.

statutory_sick_pay

Statutory sick pay total for a number of weeks off. 1 credit.

Every caller gets 25 free credits a day without a key. For more, get a free key with 300 credits at ukdata.reliness.co.uk. All tools: UK data tools for AI agents.