# NexusWindows for Claude (pypi · nexus-windows-claude)

Windows computer use in the background: UI Automation and Win32 messages, every action read back.

- Trust score: 44/100 (low)
- Change this week: −6
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- pypi · `nexus-windows-claude`: 44/100 (this document), [markdown](https://verifymcp.io/servers/pironjulien-nexus-windows-claude/nexus-windows-claude.md), [page](https://verifymcp.io/servers/pironjulien-nexus-windows-claude/nexus-windows-claude)

## Channel facts

- Registry: `pypi`
- Package: `nexus-windows-claude`
- Version: `3.7.4`
- 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.
  - Runs uv_build at install time, a recognised build step with no custom scripting around it.
  - 2 of 42 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 71/100
  - Repository check failed: the declared repository URL returned HTTP 404.
  - Cryptographically verified build provenance (signed, bound to pironjulien/NexusWindows-Claude).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 7 days ago).
  - Security-disclosure policy not yet verified: we couldn't inspect the source repository.
- **Schema Quality & AI Usability**: 0/100
  - Schema quality not yet verified: our sandbox could not run this package, so we have no schema to assess.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: our sandbox could not run this package, so we have no schema to compare.
- **Tool Coverage**: 0/100
  - Tool coverage not yet verified: our sandbox could not run this package, so we have no tool definitions to assess.
- **Tool Safety**: 0/100
  - Tool safety not yet verified: our sandbox could not run this package, so we have no tool text to scan.
- **Capabilities**: 0/100
  - Protocol version not yet verified: our sandbox could not run this package, so we never saw its MCP handshake.

**Unverified: 5 categories.** Categories scored 0 because our sandbox could not run this package, so we have no schema for these checks to read. That is a gap on our side rather than a finding about the package, and we only credit what we can confirm, so the score stands at 0 until we can run it.

## Install

### How do I install the NexusWindows for Claude MCP server?

NexusWindows for Claude runs locally as a PyPI package, launched with uvx --python 3.14 nexus-windows-claude. Ready-made configuration for Claude, Cursor, VS Code, Codex and 3 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add pironjulien-nexus-windows-claude -- uvx --python 3.14 nexus-windows-claude
```

### Cursor

```json
{
  "mcpServers": {
    "pironjulien-nexus-windows-claude": {
      "command": "uvx",
      "args": [
        "--python",
        "3.14",
        "nexus-windows-claude"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "pironjulien-nexus-windows-claude": {
      "command": "uvx",
      "args": [
        "--python",
        "3.14",
        "nexus-windows-claude"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add pironjulien-nexus-windows-claude -- uvx --python 3.14 nexus-windows-claude
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "pironjulien-nexus-windows-claude": {
      "type": "local",
      "command": [
        "uvx",
        "--python",
        "3.14",
        "nexus-windows-claude"
      ],
      "enabled": true
    }
  }
}
```

### Hermes

```yaml
mcp_servers:
  pironjulien-nexus-windows-claude:
    command: "uvx"
    args: ["--python", "3.14", "nexus-windows-claude"]
```

### Netclaw

```json
{
  "McpServers": {
    "pironjulien-nexus-windows-claude": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "--python",
        "3.14",
        "nexus-windows-claude"
      ]
    }
  }
}
```

### Other

```json
{
  "mcpServers": {
    "pironjulien-nexus-windows-claude": {
      "command": "uvx",
      "args": [
        "--python",
        "3.14",
        "nexus-windows-claude"
      ]
    }
  }
}
```

## 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.

### 2026-11-01 (score 44, −6)

- [security regression] Source repository: pass → fail
- [functional regression] Security disclosure: pass → unverified

### 2026-10-28 (score 50, +15)

- [security improvement] Malware scan: unverified → pass
- [functional] Package version: 3.7.1 → 3.7.4
- [functional] Package version: 3.7.1 → 3.7.3
- [functional] Package version: 3.7.1 → 3.7.2

### 2026-10-27 (score 35, −15)

- [security regression] Malware scan: pass → unverified
- [functional] Package version: 3.3.1 → 3.7.1
- [functional] Package version: 3.3.1 → 3.7.0
- [functional] Package version: 3.3.1 → 3.5.0
- [functional] Package version: 3.3.1 → 3.3.2

### 2026-10-26 (score 50, +15)

- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: our sandbox could not run this package, so we have no schema to compare.
- [security] Tool safety: Tool safety not yet verified: our sandbox could not run this package, so we have no tool text to scan.
- [functional] Schema quality: Schema quality not yet verified: our sandbox could not run this package, so we have no schema to assess.
- [functional] Capabilities: Protocol version not yet verified: our sandbox could not run this package, so we never saw its MCP handshake.
- [functional] Tool coverage: Tool coverage not yet verified: our sandbox could not run this package, so we have no tool definitions to assess.
- [functional] Package version: 3.2.2 → 3.3.1
- [functional] Package version: 3.2.2 → 3.3.0

### 2026-10-25 (score 35, −15)

- [security regression] Malware scan: pass → unverified
- [security] Tool safety: Tool safety not yet verified: we do not have a sandbox capture of the tool definitions this version of the package serves yet.
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional] Capabilities: Protocol version not yet verified: we do not have a sandbox capture of the MCP handshake this version of the package performs yet.
- [functional] Tool coverage: Tool coverage not yet verified: we do not have a sandbox capture of the tool definitions this version of the package serves yet.
- [functional] Schema quality: Schema quality not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional] Package version: 3.1.4 → 3.2.2
- [functional] Package version: 3.1.4 → 3.2.1
- [functional] Package version: 3.1.4 → 3.1.5

### 2026-10-24 (score 50, +15)

- [security improvement] Malware scan: unverified → pass
- [functional] Package version: 3.0.1 → 3.1.4
- [functional] Package version: 3.0.1 → 3.1.3
- [functional] Package version: 3.0.1 → 3.1.1
- [functional] Package version: 3.0.1 → 3.1.0
- [functional] Package version: 3.0.1 → 3.0.2

### 2026-10-23 (score 35)

First indexed and scored.

## MCP tools (0)

Tools for package channels are captured by running the package in an isolated sandbox. Our sandbox could not run this package, so no tool list has been captured. That is a gap on our side, not a finding about the package.

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/pironjulien-nexus-windows-claude/nexus-windows-claude#diagnostics

## Score history

- 2026-11-05: 44
- 2026-11-04: 44
- 2026-11-03: 44
- 2026-11-02: 44
- 2026-11-01: 44
- 2026-10-31: 50
- 2026-10-30: 50
- 2026-10-29: 50
- 2026-10-28: 50
- 2026-10-27: 35
- 2026-10-26: 50
- 2026-10-25: 35
- 2026-10-24: 50
- 2026-10-23: 35

## Common questions

### What is the NexusWindows for Claude MCP server?

NexusWindows for Claude is an MCP server listed in the public MCP registry as io.github.pironjulien/nexus-windows-claude. Windows computer use in the background: UI Automation and Win32 messages, every action read back. This page covers its PyPI package (nexus-windows-claude).

### Is the NexusWindows for Claude MCP server safe to use?

NexusWindows for Claude scores 44 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. 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.

### Is the NexusWindows for Claude MCP server still maintained?

NexusWindows for Claude 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 NexusWindows for Claude MCP server under?

NexusWindows for Claude 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 NexusWindows for Claude MCP server?

VerifyMCP ran 8 checks on NexusWindows for Claude, covering Malware scan, Known CVEs, Install scripts, Dependency health and 4 more. 6 items could not be completed, a gap on our side rather than a finding about NexusWindows for Claude: Security disclosure, Schema quality, Stability, Tool coverage and 2 more. 5 categories score 0 for that reason, because we only credit what we can confirm. Endpoint Security and Transport & Reachability do not apply to a PyPI package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- PyPI project: https://pypi.org/project/nexus-windows-claude/
- Socket report: https://socket.dev/pypi/package/nexus-windows-claude
- Website: https://julienpiron.fr/nexuswindows/claude/
- Changelog RSS feed: https://verifymcp.io/servers/pironjulien-nexus-windows-claude/nexus-windows-claude.xml
- Changelog JSON feed: https://verifymcp.io/servers/pironjulien-nexus-windows-claude/nexus-windows-claude/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/pironjulien-nexus-windows-claude/nexus-windows-claude.json
- HTML version of this page: https://verifymcp.io/servers/pironjulien-nexus-windows-claude/nexus-windows-claude