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pound.one

REMOTE · POUND.ONE

UK inflation, take-home pay and public spending calculators with sources and shareable results.

Available components

+1 this week 85 Trust /100

Last scanned (7 hours ago)

Scores higher than 91% of remote servers

Reachable. Last reached 5 Nov 2026.

Category Finance and Payments

Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →

Endpoint Security74
Transport & Reachability100
Schema Quality & AI Usability76
  • AI-judged instruction clarity (good).Pass
  • Tool/resource definitions use about 380 tokens (~126/item across 3 items; 3 tools + 0 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
  • No destabilizing schema changes in the last 30 days.Pass
Tool Coverage97
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 89% of tool parameters carry a description.Partial
  • Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a current MCP spec version (2026-07-28).Pass
Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 1 Nov 26 0
    • Stability: 0.97 → pass security
  • 31 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

  • 29 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

  • 27 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

  • 25 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

  • 23 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

  • 21 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

  • 19 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 5 Nov 2026 · Probed https://pound.one/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=pound.one CN=WE1,O=Google Trust Services,C=US 10 Oct 2026 8 Jan 2027 ECDSA 256 ECDSA-SHA256 1a23731044e666b91307f5eaa9e966af
SANs: pound.one, *.pound.one
CN=WE1,O=Google Trust Services,C=US (CA) CN=GTS Root R4,O=Google Trust Services LLC,C=US 13 Dec 2023 20 Feb 2029 ECDSA 256 ECDSA-SHA384 7ff31977972c224a76155d13b6d685e3
CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE 15 Nov 2023 28 Jan 2028 ECDSA 384 SHA256-RSA 7fe530bf331343bedd821610493d8a1b

Background: What to check on a remote MCP endpoint →

DNSSEC insecure

Validation of pound.one. — Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
one. present 64939 8 Verified
pound.one. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result No authorisation required
HTTP status 200

Background: How OAuth 2.1 works in the 2026 MCP spec →

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://pound.one/mcp Verified 200
http (plaintext) http://pound.one/mcp HTTPS enforced 301 https://pound.one/mcp
MCP tools · 3 exposed · ~324 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
adjust_for_inflation ~110

Compare GBP purchasing power between years, with prices, wages and housing context. RPI covers 1948 onwards; CPI covers 1988 onwards. "now" means the latest stored observation, not a live price.

NameTypeReqDescription
amountnumberyesAmount in GBP; rounded to the nearest penny.
fromintegeryesStarting calendar year.
seriesstring–Inflation measure; RPI has the longer history.
to––Ending calendar year, or latest available data.
NameTypeReqDescription
amountnumberyes–
annualisednumber|nullyes–
assumptionsarrayyes–
buysarrayyes–
cardstringyes–
caveatsarrayyes–
currencystringyes–
dataobjectyes–
factornumberyes–
fromintegeryes–
headlinestringyes–
house–yes–
housePerWage–yes–
pctChangenumberyes–
resultnumberyesEquivalent amount in GBP.
seriesstringyes–
seriesLabelstringyes–
shareUrlstringyes–
sourcesarrayyes–
to–yes–
urlstringyes–
wage–yes–
wageEquivalentnumber|nullyes–

No examples provided.

calculate_take_home ~125

Employee income tax and National Insurance for 2026/27, or the gross salary needed for a target net income. England, Wales and Northern Ireland only; Scotland is unsupported. Excludes pensions, student loans, benefits and other income. Includes a historical UK taxpayer income rank.

NameTypeReqDescription
amountintegeryesAnnual gross salary (gross mode), or annual target take-home pay (net mode), in whole GBP. Multiply monthly figures by 12 first.
modestring––
regionstringyesConfirm the tax jurisdiction; Scottish income tax is not supported.
NameTypeReqDescription
allInRatenumberyes–
amountnumberyes–
assumptionsarrayyes–
bandsarrayyes–
cardstringyes–
caveatsarrayyes–
costToEmployernumberyes–
currencystringyes–
dataobjectyes–
effectiveRatenumberyes–
employerNinumberyes–
grossnumberyes–
headlinestringyes–
inputAmountnumberyes–
marginalnumberyes–
modestringyes–
monthlynumberyes–
netnumberyes–
netRoundingDifferencenumber––
ninumberyes–
panumberyes–
percentileobjectyes–
periodstringyes–
regionstringyes–
requestedAnnualNetnumber––
rulesstringyes–
shareUrlstringyes–
sourcesarrayyes–
taxnumberyes–
taxablenumberyes–
urlstringyes–
weeklynumberyes–

No examples provided.

compare_public_spending ~89

Express a GBP amount as a share and duration of a stored 2025-26 public budget, with comparisons against other budgets. The NHS comparison uses England's DHSC day-to-day budget as a proxy. These are illustrative averages, not live spending rates.

NameTypeReqDescription
amountnumberyesAmount in GBP.
budgetstring–Budget to compare against; response also includes other budgets.
NameTypeReqDescription
amountnumberyes–
annualnumberyes–
assumptionsarrayyes–
cardstringyes–
caveatsarrayyes–
currencystringyes–
dataobjectyes–
headlinestringyes–
keystringyes–
labelstringyes–
othersarrayyes–
perDaynumberyes–
perSecondnumberyes–
scopestringyes–
secondsnumberyes–
sharenumberyesFraction of the selected annual budget, not a percentage.
shareUrlstringyes–
slugstringyes–
sourceobjectyes–
sourcesarrayyes–
textstringyes–
urlstringyes–
verbstringyes–
verificationobjectyes–
yearstringyes–

No examples provided.

Install

How do I install the pound.one MCP server?

pound.one is a hosted endpoint at https://pound.one/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

remote · pound.one

# add to Claude Code
claude mcp add --transport http one-pound-pound-one 'https://pound.one/mcp'
Common questions

What is the pound.one MCP server?

pound.one is an MCP server listed in the public MCP registry as one.pound/pound-one. UK inflation, take-home pay and public spending calculators with sources and shareable results. This page covers its hosted endpoint (https://pound.one/mcp).

Is the pound.one MCP server safe to use?

pound.one scores 85 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the pound.one MCP server expose?

pound.one exposes 3 tools: adjust_for_inflation, calculate_take_home, compare_public_spending. Their descriptions and schemas cost roughly 324 tokens of context every time the server is loaded.

Does the pound.one MCP server require authentication?

No. We connected to pound.one without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

Is the pound.one MCP server still maintained?

pound.one is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.