UK Data: Reference
uk.co.reliness/referencereliness.co.ukstreamable-httpv1.4.0Scanned
Wikipedia summaries, books by ISBN, products by barcode, IP ownership, unit conversion
6 tools: 2 do something that can't be undone, 2 change things and 2 only read.
- Reads private data · 0
- Reads text others write · 0
- Can send data out · 1
- No findings
Anlyon alternative
4 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 2Claude Code: ask
convert_unitsConvert length, mass, volume (UK and US), area, speed, energy, data, pressure and temperature.Can send data outNo findings
Why it is in this group
- The name "convert_units" says "convert": a word for a change.
- The input addresses people (input.to): what it sends cannot be taken back.
What it can reach
- outboundThe input takes a destination (input.to): what the tool writes goes there.
Description, as the server wrote it Convert length, mass, volume (UK and US), area, speed, energy, data, pressure and temperature. (cost: 1 credit)
format_moneyFormat an amount in any currency and locale, compact form, and optionally in words (for cheques and contracts).No findings
Why it is in this group
- The input carries an amount (input.amount) and a currency, so it moves money.
Description, as the server wrote it Format an amount in any currency and locale, compact form, and optionally in words (for cheques and contracts). (cost: 1 credit)
Changes things 2Claude Code: ask
product_barcodeFood product by barcode: name, brand, ingredients, allergens, Nutri-Score, nutrition per 100g.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 Food product by barcode: name, brand, ingredients, allergens, Nutri-Score, nutrition per 100g. (cost: 1 credit)
wikipedia_summaryLead summary, description, coordinates and Wikidata id for a Wikipedia article.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 Lead summary, description, coordinates and Wikidata id for a Wikipedia article. (cost: 1 credit)
Only reads 2Show 2 read-only tools
book_lookupBook details by ISBN, or search books by title or author.No findings
Why it is in this group
- The name "book_lookup" says "lookup": a word for reading.
Description, as the server wrote it Book details by ISBN, or search books by title or author. (cost: 1 credit)
ip_lookupWho owns an IP address: network name, range, country, organisations (RDAP).No findings
Why it is in this group
- The name "ip_lookup" says "lookup": a word for reading.
Description, as the server wrote it Who owns an IP address: network name, range, country, organisations (RDAP). (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.
- 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 out1
- 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 reference https://ukdata.reliness.co.uk/mcp/referenceclaude mcp add --transport http reference https://ukdata.reliness.co.uk/mcp/referenceRun 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": [
"mcp__reference__book_lookup",
"mcp__reference__ip_lookup"
],
"ask": [
"mcp__reference__wikipedia_summary",
"mcp__reference__product_barcode",
"mcp__reference__convert_units",
"mcp__reference__format_money"
],
"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 reference. Review it before you use it.
Capability tags behind 1 rule
- mcp__reference__convert_units outbound
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/reference/verify?hash=91ad4429615fe810292772b77eac4ce90cfca6fa55c151d7a9667e8f4b23ed87" | jq -e '.changed == false'Pinned hash 91ad4429615f, from Nov 4, 2026, 11:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/uk.co.reliness/reference/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/uk.co.reliness/reference)Source: MCP Registry. Synced Nov 4, 2026, 11:18 UTC.