UK Data: UK business calculators
uk.co.reliness/uk-business-calculatorsreliness.co.ukstreamable-httpv1.4.0Scanned
UK business calculators: VAT, stamp duty, late payment interest, redundancy, holiday, sick pay
6 tools: 3 do something that can't be undone and 3 change things.
- Reads private data · 0
- Reads text others write · 0
- Can send data out · 0
- No findings
Anlyon alternative
6 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
6 tools
Can't be undone 3Claude Code: ask
late_payment_interestStatutory interest and fixed compensation on a late commercial invoice (base rate plus 8%).No findings
Why it is in this group
- The name "late_payment_interest" says "payment": a word that usually means money moves, which cannot be taken back.
Description, as the server wrote it Statutory 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.No findings
Why it is in this group
- The name "redundancy_pay" says "pay": a word that usually means money moves, which cannot be taken back.
Description, as the server wrote it Statutory redundancy pay from age, years of service and weekly pay. (cost: 1 credit)
statutory_sick_payStatutory sick pay total for a number of weeks off.No findings
Why it is in this group
- The name "statutory_sick_pay" says "pay": a word that usually means money moves, which cannot be taken back.
Description, as the server wrote it Statutory sick pay total for a number of weeks off. (cost: 1 credit)
Changes things 3Claude Code: ask
holiday_entitlementStatutory paid holiday for a working pattern, pro rata by months.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Statutory paid holiday for a working pattern, pro rata by months. (cost: 1 credit)
stamp_dutySDLT on a property purchase in England or Northern Ireland: standard, first-time buyer, additional property, or non-residential.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it SDLT on a property purchase in England or Northern Ireland: standard, first-time buyer, additional property, or non-residential. (cost: 1 credit)
vatAdd or extract UK VAT at standard (20%), reduced (5%), zero or a custom rate.No findings
Why it is in this group
- The description's first verb is "add": a word for a change.
Description, as the server wrote it Add or extract UK VAT at standard (20%), reduced (5%), zero or a custom rate. (cost: 1 credit)
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write0
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.4.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http uk-business-calculators https://ukdata.reliness.co.uk/mcp/uk-business-calculatorsclaude mcp add --transport http uk-business-calculators https://ukdata.reliness.co.uk/mcp/uk-business-calculatorsRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [],
"ask": [
"mcp__uk-business-calculators__vat",
"mcp__uk-business-calculators__stamp_duty",
"mcp__uk-business-calculators__late_payment_interest",
"mcp__uk-business-calculators__redundancy_pay",
"mcp__uk-business-calculators__holiday_entitlement",
"mcp__uk-business-calculators__statutory_sick_pay"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as uk-business-calculators. Review it before you use it.
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/uk.co.reliness/uk-business-calculators/verify?hash=14b347b32f5ca7501fc2a2b2d171945f889a4638b1441a56977249b9d6738365" | jq -e '.changed == false'Pinned hash 14b347b32f5c, from Nov 4, 2026, 11:19 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/uk.co.reliness/uk-business-calculators/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/uk.co.reliness/uk-business-calculators)Source: MCP Registry. Synced Nov 4, 2026, 11:18 UTC.