# Austria Property (npm · austria-property-mcp)

Austrian property costs, buy-to-let underwriting, income tax and rent caps, cited to the statute

- Trust score: 70/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-23

## Components

- remote · `austria-property-mcp.jan-mastalier.workers.dev`: 66/100, [markdown](https://verifymcp.io/servers/mastalier1997-austria-property/austria-property-mcp.md), [page](https://verifymcp.io/servers/mastalier1997-austria-property/austria-property-mcp)
- npm · `austria-property-mcp`: 70/100 (this document), [markdown](https://verifymcp.io/servers/mastalier1997-austria-property/austria-property-mcp-2.md), [page](https://verifymcp.io/servers/mastalier1997-austria-property/austria-property-mcp-2)

## Channel facts

- Registry: `npm`
- Package: `austria-property-mcp`
- Version: `0.6.0`
- 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 2026-10-23.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 30 of 92 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (AGPL-3.0-only).
  - Actively maintained (last published 4 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 62/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1133 tokens (~377/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 17/100
  - Stability observed for 5 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% 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 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 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.

## Install

### How do I install the Austria Property MCP server?

Austria Property runs locally as an npm package, launched with npx -y austria-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 mastalier1997-austria-property -- npx -y austria-property-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "mastalier1997-austria-property": {
      "command": "npx",
      "args": [
        "-y",
        "austria-property-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "mastalier1997-austria-property": {
      "command": "npx",
      "args": [
        "-y",
        "austria-property-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add mastalier1997-austria-property -- npx -y austria-property-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "mastalier1997-austria-property": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "austria-property-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add mastalier1997-austria-property --command npx --arg -y --arg austria-property-mcp
```

### Hermes

```yaml
mcp_servers:
  mastalier1997-austria-property:
    command: "npx"
    args: ["-y", "austria-property-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "mastalier1997-austria-property": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "austria-property-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add mastalier1997-austria-property -t stdio -c npx -a -y austria-property-mcp
```

### Other

```json
{
  "mcpServers": {
    "mastalier1997-austria-property": {
      "command": "npx",
      "args": [
        "-y",
        "austria-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.

### 2026-10-23 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-20 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-18 (score 68)

First indexed and scored.

## MCP tools (3)

### `estimate_acquisition_costs` (~369 tokens)

Austrian property purchase costs

Calculate the one-off costs of buying residential property in Austria on top of the price (Kaufnebenkosten): real estate transfer tax (Grunderwerbsteuer), land-register court fees, broker commission with a check against the legal maximum, and lawyer/notary contract costs, each with VAT where it applies. Use when someone asks what buying a specific flat or house in Austria costs in total. The JSON lists the cited legal bases and sources once; pass detail "full" for every line item with its calculation and its own citations. Amounts in EUR. Not covered: bank or valuation fees, purchases within the family, exemptions for a primary residence.

Input parameters:

- `assumptions` (object): Override default assumptions. Omit to use documented defaults.
- `broker` (required): Broker commission, or "none" if the purchase is commission-free (provisionsfrei).
- `detail` (string): How much of the result to return as JSON. "summary" (default) keeps the key figures, flags, assumptions, limitations and deduplicated citations (about 40% of the size for underwrite_property, 60% for…
- `financing` (object): Mortgage financing, if any. Adds the court fee for registering the mortgage.
- `purchasePrice` (number, required): Purchase price in EUR (the agreed price for the property), e.g. 249000.
- `valuationDate` (string): Date whose rules apply, YYYY-MM-DD, usually today or the expected signing date. Defaults to today (Vienna time). Covered: 2025-04-01 to 2027-12-31.

### `underwrite_property` (~512 tokens)

Underwrite an Austrian buy-to-let purchase

Analyse an Austrian residential property as a rental investment: acquisition costs, annuity loan payment, monthly cash flow before and after income tax, gross and net yield, cash-on-cash return, debt cover (DSCR), break-even rent, whether statutory rent caps (MRG) apply and the Richtwert cap, depreciation (AfA) with the legal land share, a 25-year Liebhaberei check, and risk flags. Use when evaluating whether a specific flat or house is a good buy-to-let deal. Inputs in EUR; rents and owner costs are monthly and net of VAT. Pass what you know: missing facts fall back to documented assumptions and are flagged. The JSON is compact by default (key figures, flags, citations); pass detail "full" for every line, the tax years and the rules used. Not covered: rent increases or interest-rate changes over time, tax credits, Richtwert surcharges and deductions (Zuschläge/Abschläge).

Input parameters:

- `assumptions` (object): Override default assumptions. Omit to use documented defaults.
- `broker` (required): Broker commission, or "none" if the purchase is commission-free (provisionsfrei).
- `detail` (string): How much of the result to return as JSON. "summary" (default) keeps the key figures, flags, assumptions, limitations and deduplicated citations (about 40% of the size for underwrite_property, 60% for…
- `financing` (object): Mortgage financing. Omit for a cash purchase.
- `ownerCosts` (object): Costs the owner pays that cannot be passed on to the tenant.
- `property` (object): Property facts. Pass what you know; missing facts are flagged.
- `purchasePrice` (number, required): Purchase price in EUR (the agreed price for the property), e.g. 249000.
- `rent` (object, required): Expected rent.
- `tax` (object): Facts for the income tax on rent and the depreciation (AfA). Omit to use flagged defaults (40% marginal rate, 40% land share).
- `valuationDate` (string): Date whose rules apply, YYYY-MM-DD, usually today or the expected signing date. Defaults to today (Vienna time). Covered: 2025-04-01 to 2027-12-31.

### `get_rules` (~115 tokens)

Statutory rules and assumptions

List the statutory values the engine uses on a date (tax and fee rates, broker caps, minimum repair reserve, MRG cut-off dates, Richtwerte per state, AfA rates, land shares, income tax brackets), each with legal basis, source URL and the date it was last verified, plus the default assumptions and risk thresholds. Use to cite sources or to explain how a number was calculated.

Input parameters:

- `date` (string): Return the rules valid on this date, YYYY-MM-DD. Defaults to today (Vienna time).

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/mastalier1997-austria-property/austria-property-mcp-2#diagnostics

## Score history

- 2026-10-23: 70
- 2026-10-22: 69
- 2026-10-21: 69
- 2026-10-20: 69
- 2026-10-19: 68
- 2026-10-18: 68

## Common questions

### What is the Austria Property MCP server?

Austria Property is an MCP server listed in the public MCP registry as io.github.mastalier1997/austria-property. Austrian property costs, buy-to-let underwriting, income tax and rent caps, cited to the statute. This page covers its npm package (austria-property-mcp).

### Is the Austria Property MCP server safe to use?

Austria Property scores 70 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 23 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 Austria Property MCP server expose?

Austria Property exposes 3 tools: estimate_acquisition_costs, underwrite_property, get_rules. Their descriptions and schemas cost roughly 996 tokens of context every time the server is loaded.

### Is the Austria Property MCP server still maintained?

Austria Property is still listed as active in the MCP registry. We last reached this channel on 23 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 Austria Property MCP server under?

Austria Property declares the AGPL-3.0-only 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/austria-property-mcp
- Socket report: https://socket.dev/npm/package/austria-property-mcp
- Repository: https://github.com/mastalier1997/austria-property-mcp
- Changelog RSS feed: https://verifymcp.io/servers/mastalier1997-austria-property/austria-property-mcp-2.xml
- Changelog JSON feed: https://verifymcp.io/servers/mastalier1997-austria-property/austria-property-mcp-2.json
- HTML version of this page: https://verifymcp.io/servers/mastalier1997-austria-property/austria-property-mcp-2