# 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.

- Trust score: 63/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-18

## Components

- npm · `@claritypropertyinvestmentsorg/property-mcp`: 63/100 (this document), [markdown](https://verifymcp.io/servers/com-claritypropertyinvestments-property/claritypropertyinvestmentsorg-property-mcp.md), [page](https://verifymcp.io/servers/com-claritypropertyinvestments-property/claritypropertyinvestmentsorg-property-mcp)

## Channel facts

- Registry: `npm`
- Package: `@claritypropertyinvestmentsorg/property-mcp`
- Version: `0.1.1`
- Transport: `stdio`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-18.

- **Supply Chain Security**: 99/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 31 of 113 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 19/100
  - Repository check failed: no source repository is declared.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 4 days ago).
  - Security-disclosure policy not yet verified: we couldn't inspect the source repository.
- **Schema Quality & AI Usability**: 68/100
  - AI-judged instruction clarity (good).
  - 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.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 96/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 89% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

**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.

## Install

### 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.

### Claude

```bash
claude mcp add com-claritypropertyinvestments-property -- npx -y @claritypropertyinvestmentsorg/property-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "com-claritypropertyinvestments-property": {
      "command": "npx",
      "args": [
        "-y",
        "@claritypropertyinvestmentsorg/property-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-claritypropertyinvestments-property": {
      "command": "npx",
      "args": [
        "-y",
        "@claritypropertyinvestmentsorg/property-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add com-claritypropertyinvestments-property -- npx -y @claritypropertyinvestmentsorg/property-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-claritypropertyinvestments-property": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@claritypropertyinvestmentsorg/property-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-claritypropertyinvestments-property --command npx --arg -y --arg @claritypropertyinvestmentsorg/property-mcp
```

### Hermes

```yaml
mcp_servers:
  com-claritypropertyinvestments-property:
    command: "npx"
    args: ["-y", "@claritypropertyinvestmentsorg/property-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "com-claritypropertyinvestments-property": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@claritypropertyinvestmentsorg/property-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-claritypropertyinvestments-property -t stdio -c npx -a -y @claritypropertyinvestmentsorg/property-mcp
```

### Other

```json
{
  "mcpServers": {
    "com-claritypropertyinvestments-property": {
      "command": "npx",
      "args": [
        "-y",
        "@claritypropertyinvestmentsorg/property-mcp"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-14 (score 63, +29)

- [security improvement] 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).
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] 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

### 2026-10-13 (score 34)

First indexed and scored.

## MCP tools (5)

### `list_coverage` (~41 tokens)

Coverage and prices

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.

### `get_district` (~100 tokens)

District figures

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.

Input parameters:

- `district` (string, required): A UK postcode (M14 5RX) or postcode district (M14). England, Wales and Scotland.

### `search_places` (~177 tokens)

Search buy-to-let locations

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.

Input parameters:

- `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)

### `check_deal` (~349 tokens)

Check a buy-to-let deal

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.

Input parameters:

- `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, required): A UK postcode (M14 5RX) or postcode district (M14). England, Wales and Scotland.
- `price` (number, required): 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.

### `spending_status` (~33 tokens)

Spending so far

Free, local. The wallet paying for calls, what this session has spent, the limits, and each payment's transaction.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/com-claritypropertyinvestments-property/claritypropertyinvestmentsorg-property-mcp#diagnostics

## Score history

- 2026-10-18: 63
- 2026-10-17: 63
- 2026-10-16: 63
- 2026-10-15: 63
- 2026-10-14: 63
- 2026-10-13: 34

## Common questions

### 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.

## Links

- npm package: https://www.npmjs.com/package/@claritypropertyinvestmentsorg/property-mcp
- Socket report: https://socket.dev/npm/package/@claritypropertyinvestmentsorg/property-mcp
- Website: https://claritypropertyinvestments.com/developers
- Changelog RSS feed: https://verifymcp.io/servers/com-claritypropertyinvestments-property/claritypropertyinvestmentsorg-property-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-claritypropertyinvestments-property/claritypropertyinvestmentsorg-property-mcp.json
- HTML version of this page: https://verifymcp.io/servers/com-claritypropertyinvestments-property/claritypropertyinvestmentsorg-property-mcp