Clarity UK property data
NPM · @CLARITYPROPERTYINVESTMENTSORG/PROPERTY-MCP
UK buy-to-let figures, location search and deal checks, paid per call in USDC over x402.
Available components
Last scanned (14 hours ago)
Scores higher than 37% of npm servers
Category Finance and Payments
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security99
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 31 of 113 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency19
- Repository check failed: no source repository is declared. See how to fix → View diagnostics → Fail
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 4 days ago).Pass
- Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability68
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 700 tokens (~140/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage96
- 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
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 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
Unverified: 1 category
A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.
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.
- 14 Oct 26 +29
- Injection markers: unverified → pass ▲ security
- First check of Judged manipulation: pass security
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- Tool coverage: unverified → 100 ▲ functional
- MCP protocol: unverified → pass ▲ functional
- First check of Schema quality: fail functional
- First check of Tool coverage: 89 functional
- First check of Destructive annotations: pass functional
- First check of Schema quality: fail functional
- First check of Schema quality: good functional
- 13 Oct 26 34
First indexed and scored.
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 18 Oct 2026 · Analysed npm/@claritypropertyinvestmentsorg/property-mcp@0.1.1
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 113 packages
| Packages resolved | 113 |
|---|---|
| Stale | 31 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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 →
check_deal Check a buy-to-let deal ~349
Judge a UK buy-to-let at a given price and postcode, for this buyer: purchase tax for the right nation (SDLT, Welsh LTT, Scottish LBTT with the supplement), lender interest cover at 125% and 145%, monthly cashflow, gross and net yield, stress tests (rates +2 points, a 10% fall, voids), where the price sits among local sales, the objections and a verdict (CLEARS, MARGINAL or DOES NOT CLEAR), from Clarity's location report for that authority. A modelled purchase in an area, not a valuation of an address; research, not financial advice. Costs $0.50 USDC per call; district LS6 is free.
| Name | Type | Req | Description |
|---|---|---|---|
| cash | number | – | Buyer's cash available, GBP. Given, the check tests whether it covers the cash needed. |
| deposit | number | – | Deposit, percent of price (25 means 25%). Default 25. |
| mortgage | boolean | – | Default true; false models a cash purchase. |
| otherPropertyOwned | boolean | – | Default true: additional-dwelling purchase tax rates. |
| postcode | string | yes | A UK postcode (M14 5RX) or postcode district (M14). England, Wales and Scotland. |
| price | number | yes | Asking price, GBP. |
| propertyType | string | – | Picks the rent and the comparables. Default: the area's entry-level stock. |
| rent | number | – | Expected rent, GBP a month. Default: the ONS median for that kind of home in the authority. |
| ukResident | boolean | – | Default true; false adds England's 2% non-resident surcharge. |
No output schema declared.
No examples provided.
get_district District figures ~100
One UK postcode district's buy-to-let figures: entry price, rental yield by kind of home (the local authority's), price growth, tenant demand, crime, schools, housing delivery and the purchase tax at the entry price. Costs $0.10 USDC per call; district LS6 is free.
| Name | Type | Req | Description |
|---|---|---|---|
| district | string | yes | A UK postcode (M14 5RX) or postcode district (M14). England, Wales and Scotland. |
No output schema declared.
No examples provided.
list_coverage Coverage and prices ~41
Free. Every UK postcode district Clarity covers, what each paid tool costs, and how payment works. Call this first if unsure whether a place is covered.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
search_places Search buy-to-let locations ~177
Find up to ten UK buy-to-let locations matching a budget, minimum gross yield, kind of home and distance from a place, ranked. Headline figures per place; use get_district for the rest. Costs $0.25 USDC per call; a search nothing matches is free.
| Name | Type | Req | Description |
|---|---|---|---|
| budget | number | – | Most the buyer will pay for one home, GBP. |
| limit | integer | – | – |
| minYield | number | – | Lowest gross yield, percent. |
| near | string | – | A UK postcode, district or 'latitude,longitude' to search around. |
| priority | string | – | For sort=match. |
| propertyType | string | – | The kind of home the yield is measured on. |
| radiusKm | number | – | Distance from near, km. Default 40. |
| sort | string | – | – |
No output schema declared.
No examples provided.
spending_status Spending so far ~33
Free, local. The wallet paying for calls, what this session has spent, the limits, and each payment's transaction.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
How do I install the Clarity UK property data MCP server?
Clarity UK property data runs locally as an npm package, launched with npx -y @claritypropertyinvestmentsorg/property-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @claritypropertyinvestmentsorg/property-mcp
claude mcp add com-claritypropertyinvestments-property -- npx -y @claritypropertyinvestmentsorg/property-mcp
What is the Clarity UK property data MCP server?
Clarity UK property data is an MCP server listed in the public MCP registry as com.claritypropertyinvestments/property. UK buy-to-let figures, location search and deal checks, paid per call in USDC over x402. This page covers its npm package (@claritypropertyinvestmentsorg/property-mcp).
Is the Clarity UK property data MCP server safe to use?
Clarity UK property data scores 63 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 18 October 2026. It declares no install or post-install scripts. 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 Clarity UK property data MCP server expose?
Clarity UK property data exposes 5 tools: list_coverage, get_district, search_places, check_deal, spending_status. Their descriptions and schemas cost roughly 700 tokens of context every time the server is loaded.
Is the Clarity UK property data MCP server still maintained?
Clarity UK property data is still listed as active in the MCP registry. We last reached this channel on 18 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the Clarity UK property data MCP server under?
Clarity UK property data declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.