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UK property & area data

REMOTE · FOURZEROTWO.SI

Sold prices, area reports, postcodes, flood risk, crime and food hygiene for any UK location.

Available components

+3 this week 84 Trust /100

Last scanned (15 hours ago)

Scores higher than 89% of remote servers

Reachable. Last reached 5 Nov 2026.

Category Maps and Location

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 Security80
  • The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
  • No authorisation is required to call this server. Nothing on it is marked destructive, but we can't show that an anonymous caller can only read: full credit needs the server to list at least one tool and every tool to be verifiably read-only. We use a best-effort check of tool names and descriptions to tell read-only tools from tools that change things, so some genuinely read-only tools may not get full credit. Names that start with a read verb (get, list, read, search and similar) and accurate readOnlyHint annotations help. Meet that to earn full credit, or require authorisation. See how to fix → View diagnostics → Partial
  • HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
  • The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
  • DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
Schema Quality & AI Usability71
  • AI-judged instruction clarity (good).Pass
  • Tool/resource definitions use about 9704 tokens (~90/item across 107 items; 107 tools + 0 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management80
  • Stability observed for 24 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
  • 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 107 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 108 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
What we tested

Checks we ran (13)

  • TLS certificate
  • Authorization
  • HTTPS
  • HSTS header
  • DNSSEC
  • Transport
  • Schema quality
  • Stability
  • Tool coverage
  • Injection markers
  • Destructive annotations
  • Judged manipulation
  • MCP protocol

Does not apply to this hosted endpoint (2)

  • Supply Chain SecurityScored on package channels only. This is a hosted endpoint, so there is nothing to install or inspect.
  • Provenance & TransparencyScored on package channels only. This is a hosted endpoint, so there is nothing to install or inspect.

The score does not measure everything. What the score does not measure →

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.

  • 4 Nov 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.

  • 2 Nov 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.

  • 31 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.

  • 29 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.

  • 27 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 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 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 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 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

  • 20 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 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://fourzerotwo.si/mcp/v/uk-property

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=fourzerotwo.si CN=WE1,O=Google Trust Services,C=US 10 Oct 2026 8 Jan 2027 ECDSA 256 ECDSA-SHA256 7083f50b7ee269bb0ef93ba441295bdf
SANs: fourzerotwo.si
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 fourzerotwo.si. — Not signed

Zone DS Keys Algorithms Outcome
. Trust anchor 20326, 38696 8, 8 Verified
si. DS published 42378 13 Verified
fourzerotwo.si. No DS 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
Header Value
strict-transport-security max-age=31536000; includeSubDomains
x-content-type-options nosniff
x-frame-options deny

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

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://fourzerotwo.si/mcp/v/uk-property Verified 200
http (plaintext) http://fourzerotwo.si/mcp/v/uk-property HTTPS enforced 301 https://fourzerotwo.si/mcp/v/uk-property
MCP tools · 107 exposed · ~9,633 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
uk-property__price-summary ~75

Count, median, mean, range and by-type medians of sales in a postcode over N years. A few free samples a day, then $0.005 USDC per call via x402.

NameTypeReqDescription
postcodestringyesUK postcode
yearsinteger–Look-back years (default 5)

Structured output declared, but exposes no named fields.

No examples provided.

uk-property__revalue ~101

Index a past sale price to today with the UK House Price Index for a region. A few free samples a day, then $0.005 USDC per call via x402.

NameTypeReqDescription
amountintegeryesSale price £
regionstring–UK HPI region slug (england-and-wales, london, south-east, kent, wales, scotland…)
sale_datestringyesYYYY-MM-DD

Structured output declared, but exposes no named fields.

No examples provided.

uk-property__sold-prices ~78

Every recorded sale in a postcode since 1995 (England & Wales), newest first; optionally one address. A few free samples a day, then $0.005 USDC per call via x402.

NameTypeReqDescription
addressstring–House number/name to filter to one property
postcodestringyesUK postcode

Structured output declared, but exposes no named fields.

No examples provided.

uk-road-safety__collision ~65

One reported collision by its STATS19 index: date, time, severity, vehicles, casualties, road and conditions. A few free samples a day, then $0.001 USDC per call via x402.

NameTypeReqDescription
idstringyesCollision index

Structured output declared, but exposes no named fields.

No examples provided.

uk-road-safety__local-authority ~92

Five-year (or one-year) collision totals for a local authority district by severity and year, road class, speed limit, light, weather, surface and urban/rural. A few free samples a day, then $0.003 USDC per call via x402.

NameTypeReqDescription
codestringyesONS local authority district code
yearinteger–One year only

Structured output declared, but exposes no named fields.

No examples provided.

uk-road-safety__lsoa ~79

Collisions in a 2021 LSOA (neighbourhood of ~1,500 people) over five years, with the 50 most recent. A few free samples a day, then $0.002 USDC per call via x402.

NameTypeReqDescription
codestringyesLSOA 2021 code

Structured output declared, but exposes no named fields.

No examples provided.

uk-road-safety__near ~158

Reported collisions within a radius (default 500 m, max 2 km) of a UK postcode or point over the last five years: totals by severity and year, and the most recent collisions with road, speed limit, light and weather. A few free samples a day, then $0.003 USDC per call via x402.

NameTypeReqDescription
latstring–Latitude
limitinteger–Recent collisions to list (default 20)
lngstring–Longitude
postcodestring–UK postcode (or give lat and lng)
radius_minteger–Radius in metres (default 500, max 2000)
yearinteger–One year only

Structured output declared, but exposes no named fields.

No examples provided.

Install

How do I install the UK property & area data MCP server?

UK property & area data is a hosted endpoint at https://fourzerotwo.si/mcp/v/uk-property, 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 · fourzerotwo.si

# add to Claude Code
claude mcp add --transport http si-fourzerotwo-uk-property 'https://fourzerotwo.si/mcp/v/uk-property'
Common questions

What is the UK property & area data MCP server?

UK property & area data is an MCP server listed in the public MCP registry as si.fourzerotwo/uk-property. Sold prices, area reports, postcodes, flood risk, crime and food hygiene for any UK location. This page covers its hosted endpoint (https://fourzerotwo.si/mcp/v/uk-property).

Is the UK property & area data MCP server safe to use?

UK property & area data scores 84 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 UK property & area data MCP server expose?

UK property & area data exposes 107 tools: schools__school, schools__search, schools__near, uk-flood__warnings, uk-flood__warnings-near, and 102 more. Their descriptions and schemas cost roughly 9,633 tokens of context every time the server is loaded.

Does the UK property & area data MCP server require authentication?

No. We connected to UK property & area data without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

Is the UK property & area data MCP server still maintained?

UK property & area data 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.

What did VerifyMCP test on the UK property & area data MCP server?

VerifyMCP ran 13 checks on UK property & area data, covering TLS certificate, Authorization, HTTPS, HSTS header and 9 more. Supply Chain Security and Provenance & Transparency do not apply to a hosted endpoint, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.