UK Data: UK business calculators

uk.co.relinessPublished by reliness.co.ukOfficial publisherv1.4.0Updated Nov 4, 2026

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

The publisher's own server: UK Data: Compliance and finance checks

VerifiedStreamable HTTPWeb executableFinance Business & Commerce

Server details

Identifier: uk.co.reliness/uk-business-calculators
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Nov 4, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to reliness.co.uk, which also runs its endpoint. That identifies the publisher; it does not make the server's tools safe.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

Remote MCP server of UK business calculators covering VAT, stamp duty, late payment interest, redundancy, holiday and sick pay.

What you can do: Run UK VAT calculations
Work out stamp duty amounts
Calculate late payment interest
Estimate redundancy pay
Work out holiday entitlement and sick pay
No individual tools are listed, so the exact operations are only described at this summary level.
When to use it: Useful when an assistant needs quick UK-specific statutory or tax figures — VAT, stamp duty, late payment interest, redundancy, holiday or sick pay — rather than general arithmetic.
Requirements: A remote streamable HTTP endpoint; nothing to install locally. No account is required for the free daily allowance. An optional Authorization header with a bearer key raises the allowance; the key is obtained from the provider's key endpoint.

Before you install

The Authorization header carries a secret key, so keep it out of shared logs and configs. Results are calculator outputs, not professional tax or legal advice, and the free tier is limited per day. No tools are listed, so verify the available operations before relying on it.

Installation

In SourceWeft

Open UK Data: UK business calculators in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/uk.co.reliness%2Fuk-business-calculators/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "uk-data-uk-business-calculators": {
      "type": "http",
      "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. (cost: 1 credit)

ParametersrateamountincludesVat

stamp_duty

stamp duty

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

ParameterspricebuyerTyperesidential

late_payment_interest

late payment interest

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

ParametersdueDatepaidDateinvoiceAmountbaseRateOverride

redundancy_pay

redundancy pay

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

ParametersageweeklyPayyearsService

holiday_entitlement

holiday entitlement

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

ParametersdaysPerWeekhoursPerWeekmonthsWorked

statutory_sick_pay

statutory sick pay

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

ParametersweeksOffdaysPerWeek

Version history

v1.4.0LatestNov 4, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
LicenseNot applicable
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.