UK Data: UK business calculators
UK business calculators: VAT, stamp duty, late payment interest, redundancy, holiday, sick pay
Connect Remote server
claude mcp add --transport http uk-business-calculators https://ukdata.reliness.co.uk/mcp/uk-business-calculators --header "Authorization: Bearer <YOUR_API_KEY>"
{
"mcpServers": {
"uk-business-calculators": {
"url": "https://ukdata.reliness.co.uk/mcp/uk-business-calculators",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
{
"servers": {
"uk-business-calculators": {
"type": "http",
"url": "https://ukdata.reliness.co.uk/mcp/uk-business-calculators",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
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
vatAdd or extract UK VAT at standard (20%), reduced (5%), zero or a custom rate. (cost: 1 credit)
stamp_dutySDLT on a property purchase in England or Northern Ireland: standard, first-time buyer, additional property, or non-residential. (cost: 1 credit)
late_payment_interestStatutory interest and fixed compensation on a late commercial invoice (base rate plus 8%). (cost: 1 credit)
redundancy_payStatutory redundancy pay from age, years of service and weekly pay. (cost: 1 credit)
holiday_entitlementStatutory paid holiday for a working pattern, pro rata by months. (cost: 1 credit)
mortgage_repaymentMonthly 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_repaymentMonthly 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_payStatutory sick pay total for a number of weeks off. (cost: 1 credit)
Headers
| Name | Description |
|---|---|
AuthorizationOptional, secret | Optional. Bearer <key> for more than the free daily allowance; free key from POST https://ukdata.reliness.co.uk/keys |
Details
| Endpoint | https://ukdata.reliness.co.uk/mcp/uk-business-calculators (Streamable HTTP) |
| First published | 4 Nov 2026 |
| Last updated | 4 Nov 2026 |
| Registry name | uk.co.reliness/uk-business-calculators |
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