# Zillow (npm · @pipeworx/mcp-zillow)

Zillow Research MCP — housing market data from Zillow's public CSV dumps.

- Trust score: 83/100 (high trust)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `gateway.pipeworx.io`: 71/100, [markdown](https://verifymcp.io/servers/pipeworx-io-zillow/zillow-mcp.md), [page](https://verifymcp.io/servers/pipeworx-io-zillow/zillow-mcp)
- npm · `@pipeworx/mcp-zillow`: 83/100 (this document), [markdown](https://verifymcp.io/servers/pipeworx-io-zillow/pipeworx-mcp-zillow.md), [page](https://verifymcp.io/servers/pipeworx-io-zillow/pipeworx-mcp-zillow)

## Channel facts

- Registry: `npm`
- Package: `@pipeworx/mcp-zillow`
- Version: `0.2.0`
- 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 2026-11-05.

- **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-zillow).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 6 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 66/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 721 tokens (~180/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 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 4 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.

## Install

### How do I install the Zillow MCP server?

Zillow runs locally as an npm package, launched with npx -y @pipeworx/mcp-zillow. 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-zillow -- npx -y @pipeworx/mcp-zillow
```

### Cursor

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

### VS Code

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

### Codex

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

### opencode

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

### OpenClaw

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

### Hermes

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

### Netclaw

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

### Vellum

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

### Other

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

## 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 83, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 82, +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.

### 2026-11-01 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 0 to 3. That category is still filling its 30-day observation window: 0 days of observed history at the previous scan, 1 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 79)

First indexed and scored.

## MCP tools (4)

### `zillow_home_values` (~215 tokens)

Zillow Home Value Index (ZHVI) — monthly home value estimates as a TIME SERIES. PREFER for any "how have home prices/values TRENDED" question — "home price trend in Denver over the past few years", "how has the Austin housing market moved", "are home values rising in Phoenix" — a multi-year monthly series answers a trend question where a single-year census snapshot cannot; metro grain answering a county question is the right trade, said openly. Returns observation_date + value pairs for the matching region (case-insensitive substring match on region name). Coverage: US metros, states, national.

Input parameters:

- `from` (string): Start date YYYY-MM-DD (default: 5y ago)
- `region` (string, required): Region name, e.g. "Los Angeles", "California", "United States". Substring match.
- `region_type` (string): Optional disambiguator: metro | state | national
- `to` (string): End date YYYY-MM-DD (default: latest)

### `zillow_rent_prices` (~92 tokens)

Zillow Observed Rent Index (ZORI) — monthly rent estimates as a time series. US metros only. Returns observation_date + value pairs.

Input parameters:

- `from` (string): Start date YYYY-MM-DD (default: 5y ago)
- `region` (string, required): Metro region name, e.g. "New York"
- `to` (string): End date YYYY-MM-DD (default: latest)

### `zillow_market_snapshot` (~121 tokens)

Latest available value across every metric (home value, rent, inventory, sales count, median sale price, new listings) for a single region. Useful for a one-call "tell me everything about this market" view. Coverage is US METRO areas, states and national — ask for the metro that contains a place ("Miami"), because ZIP codes and counties are not in this dataset and census_acs answers those instead.

Input parameters:

- `region` (string, required): Region name, substring match
- `region_type` (string): Optional: metro | state | national

### `zillow_top_markets` (~241 tokens)

Ranked list of regions by a housing metric. sort_by="value" (default) ranks by the latest value: metric=zhvi direction=top → most expensive metros, direction=bottom → cheapest. sort_by="growth" ranks by percent change over a trailing window (growth_window_months, default 12): direction=top → FASTEST-GROWING / fastest-appreciating metros, direction=bottom → biggest decliners. metric defaults to zhvi (home values). Returns up to 100 rows.

Input parameters:

- `direction` (string): top | bottom (default top)
- `growth_window_months` (number): Trailing window for sort_by=growth, in months (default 12).
- `limit` (number): 1-100 (default 10)
- `metric` (string): One of: zhvi | zori | sales_count | median_sale_price | inventory | new_listings (default zhvi)
- `region_type` (string): metro | state | national (default metro)
- `sort_by` (string): value (latest level, default) | growth (percent change over growth_window_months)

## Diagnostics

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

## Score history

- 2026-11-05: 83
- 2026-11-04: 82
- 2026-11-03: 82
- 2026-11-02: 81
- 2026-11-01: 81
- 2026-10-31: 80
- 2026-10-30: 80
- 2026-10-29: 79

## Common questions

### What is the Zillow MCP server?

Zillow is an MCP server listed in the public MCP registry as io.github.pipeworx-io/zillow. Zillow Research MCP, housing market data from Zillow's public CSV dumps. This page covers its npm package (@pipeworx/mcp-zillow).

### Is the Zillow MCP server safe to use?

Zillow scores 83 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 Zillow MCP server expose?

Zillow exposes 4 tools: zillow_home_values, zillow_rent_prices, zillow_market_snapshot, zillow_top_markets. Their descriptions and schemas cost roughly 669 tokens of context every time the server is loaded.

### Is the Zillow MCP server still maintained?

Zillow 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 Zillow MCP server under?

Zillow 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 Zillow MCP server?

VerifyMCP ran 16 checks on Zillow, 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-zillow
- Socket report: https://socket.dev/npm/package/@pipeworx/mcp-zillow
- Repository: https://github.com/pipeworx-io/mcp-zillow
- Website: https://pipeworx.io/packs/zillow
- Changelog RSS feed: https://verifymcp.io/servers/pipeworx-io-zillow/pipeworx-mcp-zillow.xml
- Changelog JSON feed: https://verifymcp.io/servers/pipeworx-io-zillow/pipeworx-mcp-zillow/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/pipeworx-io-zillow/pipeworx-mcp-zillow.json
- HTML version of this page: https://verifymcp.io/servers/pipeworx-io-zillow/pipeworx-mcp-zillow