# ESXi Read-Only Diagnostics (pypi · esxi-readonly-mcp)

Read-only VMware ESXi diagnostics: CPU Ready, disk latency, snapshots, real space, hardware health.

- Trust score: 64/100 (medium)
- Change this week: −18
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- pypi · `esxi-readonly-mcp`: 64/100 (this document), [markdown](https://verifymcp.io/servers/nicolasboattini-esxi-readonly-mcp/esxi-readonly-mcp.md), [page](https://verifymcp.io/servers/nicolasboattini-esxi-readonly-mcp/esxi-readonly-mcp)

## Channel facts

- Registry: `pypi`
- Package: `esxi-readonly-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 2026-11-05.

- **Supply Chain Security**: 50/100
  - Malware scan not yet available for this package.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs hatchling.build at install time, a recognised build step with no custom scripting around it.
  - 3 of 43 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 (MIT).
  - Actively maintained (last published 35 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 77/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 904 tokens (~69/item across 13 items; 13 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 77/100
  - Stability observed for 23 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 67/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% 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 13 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 14 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 ESXi Read-Only Diagnostics MCP server?

ESXi Read-Only Diagnostics runs locally as a PyPI package, launched with uvx esxi-readonly-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 nicolasboattini-esxi-readonly-mcp -- uvx esxi-readonly-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "nicolasboattini-esxi-readonly-mcp": {
      "command": "uvx",
      "args": [
        "esxi-readonly-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "nicolasboattini-esxi-readonly-mcp": {
      "command": "uvx",
      "args": [
        "esxi-readonly-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add nicolasboattini-esxi-readonly-mcp -- uvx esxi-readonly-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "nicolasboattini-esxi-readonly-mcp": {
      "type": "local",
      "command": [
        "uvx",
        "esxi-readonly-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add nicolasboattini-esxi-readonly-mcp --command uvx --arg esxi-readonly-mcp
```

### Hermes

```yaml
mcp_servers:
  nicolasboattini-esxi-readonly-mcp:
    command: "uvx"
    args: ["esxi-readonly-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "nicolasboattini-esxi-readonly-mcp": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "esxi-readonly-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add nicolasboattini-esxi-readonly-mcp -t stdio -c uvx -a esxi-readonly-mcp
```

### Other

```json
{
  "mcpServers": {
    "nicolasboattini-esxi-readonly-mcp": {
      "command": "uvx",
      "args": [
        "esxi-readonly-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.

### 2026-11-05 (score 64, −18)

- [security regression] Malware scan: pass → unverified
- [functional] Stability: pass → 0.77

### 2026-10-30 (score 82, 0)

- [security] Stability: 0.97 → pass

### 2026-10-29 (score 82, +16)

- [security improvement] Malware scan: unverified → pass

### 2026-10-27 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-25 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-23 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-20 (score 63, +1)

No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-18 (score 62, −14)

- [security regression] Malware scan: pass → unverified

## MCP tools (13)

### `verificar_permisos` (~30 tokens)

Muestra con que usuario se conecta y si ese usuario tiene privilegios de escritura en ESXi.

### `host_info` (~46 tokens)

Host: fabricante, modelo, CPU (cores/hilos/HT), RAM total y usada, version y build de ESXi, uptime,
politica de energia y controladoras de storage.

### `datastores` (~40 tokens)

Datastores: capacidad, usado, libre, % de uso, % provisionado (thin), disco fisico donde esta cada uno y VMs.

### `vms` (~67 tokens)

Todas las VMs: estado, vCPU, RAM asignada/activa/consumida, ballooning, swap, reservas/limites, VMware Tools,
discos (provisionado vs usado, thin/thick, datastore, controladora) y espacio libre dentro del guest.

### `snapshots` (~41 tokens)

Todos los snapshots con fecha, antiguedad, tamano aproximado y marca de los que superan dias_alerta.

Input parameters:

- `dias_alerta` (integer)

### `performance` (~176 tokens)

Metricas de host y VMs: CPU uso, CPU Ready %, Co-Stop %, memoria activa/ballooning/swap, latencia de disco
(total, por disco virtual y por datastore) e IOPS. Devuelve promedio, p95 y maximo con su momento.
intervalo: realtime (20 s, ~1 h en ESXi standalone), dia, semana, mes, anio (estos requieren vCenter).
max_muestras: 180 = 1 h en realtime. dias: rango hacia atras (alternativa a max_muestras).

Input parameters:

- `dias`
- `hora_fin` (integer)
- `hora_inicio` (integer)
- `intervalo` (string)
- `max_muestras` (integer)
- `solo_horario_laboral` (boolean)
- `vm`

### `historial_perf` (~97 tokens)

Resumen de las metricas guardadas localmente por 'server.py --collect' (semanas de historia, aunque ESXi
solo guarde 1 h). Filtra por horario laboral (lunes a viernes, hora local).

Input parameters:

- `dias` (integer)
- `entidad`
- `hora_fin` (integer)
- `hora_inicio` (integer)
- `solo_horario_laboral` (boolean)

### `top_archivos` (~50 tokens)

Archivos mas grandes de cada datastore (o de uno), con la VM a la que pertenecen y marca de posibles huerfanos.

Input parameters:

- `datastore`
- `top` (integer)

### `overcommit` (~33 tokens)

Suma de vCPU vs cores/hilos fisicos y RAM asignada vs fisica (ratios de overcommit).

### `salud_hardware` (~53 tokens)

Salud del hardware segun ESXi: estado de la RAID y discos fisicos (PERC), sensores de temperatura,
ventiladores, fuentes, memoria y CPU. Lista primero los elementos que no estan en verde.

### `eventos` (~93 tokens)

Eventos de ESXi (errores de disco, reinicios de VMs, alarmas, tareas, logins fallidos).
nivel: todos | warning (warning y error) | error. Fechas corregidas por el desfase del reloj de ESXi.

Input parameters:

- `dias` (integer)
- `incluir_sesiones` (boolean)
- `max_eventos` (integer)
- `nivel` (string)

### `config_host` (~75 tokens)

Configuracion del host: licencia (clave enmascarada) y vencimiento, NTP y desfase del reloj, SSH/Shell,
servicios activos, perfil de imagen y VIBs/drivers de terceros, syslog, placas de red (velocidad de enlace),
vSwitches, portgroups y VMkernel.

### `diagnostico_completo` (~62 tokens)

Ejecuta todo junto: permisos, host, salud de hardware, configuracion, datastores, VMs, snapshots,
performance realtime, eventos (warning/error 7 dias), top archivos y overcommit.

Input parameters:

- `dias_alerta_snapshot` (integer)

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/nicolasboattini-esxi-readonly-mcp/esxi-readonly-mcp#diagnostics

## Score history

- 2026-11-05: 64
- 2026-11-04: 82
- 2026-11-03: 82
- 2026-11-02: 82
- 2026-11-01: 82
- 2026-10-31: 82
- 2026-10-30: 82
- 2026-10-29: 82
- 2026-10-28: 66
- 2026-10-27: 66
- 2026-10-26: 65
- 2026-10-25: 65
- 2026-10-24: 64
- 2026-10-23: 64
- 2026-10-22: 63
- 2026-10-21: 63
- 2026-10-20: 63
- 2026-10-19: 62
- 2026-10-18: 62
- 2026-10-17: 76
- 2026-10-16: 61
- 2026-10-15: 60
- 2026-10-14: 60
- 2026-10-13: 74
- 2026-10-12: 42
- 2026-10-06: 68
- 2026-10-04: 68
- 2026-10-03: 68
- 2026-10-02: 68
- 2026-10-01: 68

## Common questions

### What is the ESXi Read-Only Diagnostics MCP server?

ESXi Read-Only Diagnostics is an MCP server listed in the public MCP registry as io.github.nicolasboattini/esxi-readonly-mcp. Read-only VMware ESXi diagnostics: CPU Ready, disk latency, snapshots, real space, hardware health. This page covers its PyPI package (esxi-readonly-mcp).

### Is the ESXi Read-Only Diagnostics MCP server safe to use?

ESXi Read-Only Diagnostics scores 64 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. 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 ESXi Read-Only Diagnostics MCP server expose?

ESXi Read-Only Diagnostics exposes 13 tools: verificar_permisos, host_info, datastores, vms, snapshots, and 8 more. Their descriptions and schemas cost roughly 863 tokens of context every time the server is loaded.

### Is the ESXi Read-Only Diagnostics MCP server still maintained?

ESXi Read-Only Diagnostics 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 ESXi Read-Only Diagnostics MCP server under?

ESXi Read-Only Diagnostics 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

- PyPI project: https://pypi.org/project/esxi-readonly-mcp/
- Socket report: https://socket.dev/pypi/package/esxi-readonly-mcp
- Repository: https://github.com/nicolasboattini/esxi-readonly-mcp
- Changelog RSS feed: https://verifymcp.io/servers/nicolasboattini-esxi-readonly-mcp/esxi-readonly-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/nicolasboattini-esxi-readonly-mcp/esxi-readonly-mcp.json
- HTML version of this page: https://verifymcp.io/servers/nicolasboattini-esxi-readonly-mcp/esxi-readonly-mcp