# France Dvf (npm · @pipeworx/mcp-france-dvf)

france-dvf — France's official property-transfer price records ('Demandes de valeurs foncieres'…

- Trust score: 82/100 (high trust)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `gateway.pipeworx.io`: 69/100, [markdown](https://verifymcp.io/servers/pipeworx-io-france-dvf/france-dvf-mcp.md), [page](https://verifymcp.io/servers/pipeworx-io-france-dvf/france-dvf-mcp)
- npm · `@pipeworx/mcp-france-dvf`: 82/100 (this document), [markdown](https://verifymcp.io/servers/pipeworx-io-france-dvf/pipeworx-mcp-france-dvf.md), [page](https://verifymcp.io/servers/pipeworx-io-france-dvf/pipeworx-mcp-france-dvf)

## Channel facts

- Registry: `npm`
- Package: `@pipeworx/mcp-france-dvf`
- Version: `0.2.1`
- 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 2026-11-05.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - No production dependencies, so there is no dependency health to assess.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to pipeworx-io/mcp-france-dvf).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 3 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 64/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 776 tokens (~258/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**: 20/100
  - Stability observed for 6 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 France Dvf MCP server?

France Dvf runs locally as an npm package, launched with npx -y @pipeworx/mcp-france-dvf. 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 pipeworx-io-france-dvf -- npx -y @pipeworx/mcp-france-dvf
```

### Cursor

```json
{
  "mcpServers": {
    "pipeworx-io-france-dvf": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-france-dvf"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "pipeworx-io-france-dvf": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-france-dvf"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add pipeworx-io-france-dvf -- npx -y @pipeworx/mcp-france-dvf
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "pipeworx-io-france-dvf": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@pipeworx/mcp-france-dvf"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add pipeworx-io-france-dvf --command npx --arg -y --arg @pipeworx/mcp-france-dvf
```

### Hermes

```yaml
mcp_servers:
  pipeworx-io-france-dvf:
    command: "npx"
    args: ["-y", "@pipeworx/mcp-france-dvf"]
```

### Netclaw

```json
{
  "McpServers": {
    "pipeworx-io-france-dvf": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@pipeworx/mcp-france-dvf"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add pipeworx-io-france-dvf -t stdio -c npx -a -y @pipeworx/mcp-france-dvf
```

### Other

```json
{
  "mcpServers": {
    "pipeworx-io-france-dvf": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-france-dvf"
      ]
    }
  }
}
```

## 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.

### 2026-11-05 (score 82, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 81, +16)

- [security improvement] Malware scan: unverified → pass

### 2026-11-02 (score 65, −14)

- [security regression] Malware scan: pass → unverified
- [functional improvement] Stability: unverified → 0.10
- [functional] Package version: 0.2.0 → 0.2.1

### 2026-10-31 (score 79, 0)

- [functional regression] Security disclosure: unverified → fail

### 2026-10-30 (score 79)

First indexed and scored.

## MCP tools (3)

### `fr_property_sales` (~362 tokens)

List recorded French property-transfer prices (DVF -- Demandes de valeurs foncieres, published by DGFiP) for a commune or postcode, optionally filtered by date range and property type. Each result is one recorded disposition (a specific parcel/lot in a transaction) with price, address-level commune, parcel id, property type, built surface, land surface, room count and coordinates. Pass commune as either a 5-digit INSEE code (e.g. "75111" for Paris 11e) or a commune name (e.g. "Lyon" matches all 9 Lyon arrondissements; "Paris 11e Arrondissement"). Use for "property sales in Paris 11e in 2025" or "recent house sales in Annecy". Covers a rolling five years; excludes Alsace, Moselle and Mayotte (see data_as_of/coverage_note in the response).

Input parameters:

- `commune` (string): 5-digit INSEE commune code (e.g. "75111") or a commune name (case-insensitive prefix match, e.g. "Lyon").
- `from` (string): Earliest sale date, YYYY-MM-DD (inclusive).
- `limit` (number): Max results, 1-200. Default 25.
- `offset` (number): Pagination offset. Default 0.
- `postcode` (string): 5-digit French postal code, e.g. "75011".
- `to` (string): Latest sale date, YYYY-MM-DD (inclusive).
- `type` (string): Property type: "Maison" (house), "Appartement" (apartment), "Dépendance" (outbuilding), or "Local industriel. commercial ou assimilé" (commercial/industrial).

### `fr_property_sale` (~111 tokens)

One French property transaction ("mutation") by its DVF id_mutation, as returned by fr_property_sales. Returns every lot/parcel recorded under that transaction (a sale can bundle several parcels, e.g. a house plus a garage) with the shared transaction price, date and nature. Use after fr_property_sales to see the full set of parcels in a specific sale.

Input parameters:

- `id` (string, required): The id_mutation from a fr_property_sales result, e.g. "2025-123456".

### `fr_property_stats` (~248 tokens)

Median and average price per square meter for a French commune and year, broken out by property type (Maison/Appartement), plus the total number of transactions. Computed only from single-lot sales (one parcel per transaction) with a positive built surface, because the DVF price field is the total for the whole transaction and would otherwise be double-counted or misattributed across bundled lots. Pass commune as a 5-digit INSEE code or a commune name; a name matching more than one commune (e.g. "Saint-Martin") returns the list of candidates instead of a number. Use for "median price per m2 in Lyon in 2024" or "how much do apartments go for in Nantes".

Input parameters:

- `commune` (string, required): 5-digit INSEE commune code (e.g. "69381" for Lyon 1er) or a commune name (e.g. "Lyon 1er Arrondissement", "Nantes"). A bare multi-arrondissement city name like "Lyon" or "Paris" returns all its arron…
- `year` (number, required): Calendar year, e.g. 2024.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/pipeworx-io-france-dvf/pipeworx-mcp-france-dvf#diagnostics

## Score history

- 2026-11-05: 82
- 2026-11-04: 81
- 2026-11-03: 81
- 2026-11-02: 65
- 2026-11-01: 79
- 2026-10-31: 79
- 2026-10-30: 79

## Common questions

### What is the France Dvf MCP server?

France Dvf is an MCP server listed in the public MCP registry as io.github.pipeworx-io/france-dvf. france-dvf, France's official property-transfer price records ('Demandes de valeurs foncieres'… This page covers its npm package (@pipeworx/mcp-france-dvf).

### Is the France Dvf MCP server safe to use?

France Dvf scores 82 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. 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 France Dvf MCP server expose?

France Dvf exposes 3 tools: fr_property_sales, fr_property_sale, fr_property_stats. Their descriptions and schemas cost roughly 721 tokens of context every time the server is loaded.

### Is the France Dvf MCP server still maintained?

France Dvf 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 licence is the France Dvf MCP server under?

France Dvf declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

### What did VerifyMCP test on the France Dvf MCP server?

VerifyMCP ran 16 checks on France Dvf, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- npm package: https://www.npmjs.com/package/@pipeworx/mcp-france-dvf
- Socket report: https://socket.dev/npm/package/@pipeworx/mcp-france-dvf
- Repository: https://github.com/pipeworx-io/mcp-france-dvf
- Website: https://pipeworx.io/packs/france-dvf
- Changelog RSS feed: https://verifymcp.io/servers/pipeworx-io-france-dvf/pipeworx-mcp-france-dvf.xml
- Changelog JSON feed: https://verifymcp.io/servers/pipeworx-io-france-dvf/pipeworx-mcp-france-dvf/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/pipeworx-io-france-dvf/pipeworx-mcp-france-dvf.json
- HTML version of this page: https://verifymcp.io/servers/pipeworx-io-france-dvf/pipeworx-mcp-france-dvf