# Dúos (remote · usaduos.com)

Two AI perspectives and a cross-review. OAuth required; new consultations use your Dúos quota.

- Trust score: 74/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `usaduos.com`: 74/100 (this document), [markdown](https://verifymcp.io/servers/com-usaduos-duos/usaduos.md), [page](https://verifymcp.io/servers/com-usaduos-duos/usaduos)

## Channel facts

- Endpoint: `https://usaduos.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, 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.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 65/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 718 tokens (~179/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**: 20/100
  - Stability observed for 6 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 93/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 75% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **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 current MCP spec version (2026-07-28).

## Install

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

Dúos is a hosted endpoint at https://usaduos.com/mcp, so there is nothing to install locally. 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 --transport http com-usaduos-duos 'https://usaduos.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-usaduos-duos": {
      "url": "https://usaduos.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-usaduos-duos": {
      "type": "http",
      "url": "https://usaduos.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-usaduos-duos]
url = "https://usaduos.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-usaduos-duos": {
      "type": "remote",
      "url": "https://usaduos.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-usaduos-duos --url 'https://usaduos.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-usaduos-duos:
    url: "https://usaduos.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-usaduos-duos": {
      "Transport": "http",
      "Url": "https://usaduos.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-usaduos-duos -t streamable-http -u 'https://usaduos.com/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-usaduos-duos": {
      "type": "http",
      "url": "https://usaduos.com/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## 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.

### 2026-11-04 (score 74, +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.

### 2026-11-02 (score 73, +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.

### 2026-10-31 (score 72, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-30 (score 71)

First indexed and scored.

## MCP tools (4)

### `duos_consultar_cuota` (~63 tokens)

Consultar tu cuota de Dúos

Devuelve el plan, las consultas disponibles y el presupuesto propio de IA. No genera respuestas ni consume consultas. No muestra otros clientes ni el gasto global.

Input parameters:

- `response_format` (string): Formato del texto; structuredContent siempre contiene los datos.

Output parameters:

- `budget` (object)
- `credits` (object)

### `duos_crear_consulta` (~227 tokens)

Comparar dos perspectivas con Dúos

Crea una consulta autenticada: dos análisis iniciales separados y una revisión cruzada de cada modelo. Envía el texto a proveedores de IA y puede consumir UNA consulta del plan y gasto de IA. Requiere intención del cliente; no usar como comprobación gratuita de conexión. Devuelve jobId/status para consultar el resultado con duos_obtener_resultado. Reutiliza el MISMO idempotency_key UUID si reintentas la MISMA pregunta; nunca cambies el mensaje con esa clave.

Input parameters:

- `chat_id` (string): Chat propio que continuar; si se omite se abre uno asociado a esta consulta.
- `idempotency_key` (string, required): UUID nuevo por pregunta; conservarlo para reintentos de esa misma consulta.
- `locale` (string)
- `message` (string, required): Pregunta o decisión y contexto que el cliente desea enviar a los dos modelos.
- `mode` (string): Tema de la consulta; por defecto general.
- `response_format` (string): Formato del texto; structuredContent siempre contiene los datos.

Output parameters:

- `jobId` (string)
- `pollAfterMs` (integer)
- `requestId` (string)
- `status` (string)

### `duos_obtener_resultado` (~93 tokens)

Recuperar el resultado de una consulta

Recupera únicamente un trabajo propio creado antes. No vuelve a llamar a modelos ni descuenta consultas. Si sigue pendiente, respeta pollAfterMs antes de volver a leer. Un error no es un resultado completo.

Input parameters:

- `job_id` (string, required): jobId devuelto por duos_crear_consulta.
- `response_format` (string): Formato del texto; structuredContent siempre contiene los datos.

Output parameters:

- `error` (string|object)
- `jobId` (string)
- `pollAfterMs` (integer)
- `requestId` (string)
- `result` (object)
- `status` (string)

### `duos_listar_consultas` (~80 tokens)

Ver tu historial de consultas

Lista una página del historial propio de consultas. Requiere el permiso separado duos:history. No genera respuestas. Continúa con nextOffset cuando no sea null.

Input parameters:

- `limit` (integer)
- `offset` (integer)
- `response_format` (string): Formato del texto; structuredContent siempre contiene los datos.

Output parameters:

- `consultations` (array)
- `nextOffset` (integer|null)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-usaduos-duos/usaduos#diagnostics

## Score history

- 2026-11-05: 74
- 2026-11-04: 74
- 2026-11-03: 73
- 2026-11-02: 73
- 2026-11-01: 72
- 2026-10-31: 72
- 2026-10-30: 71

## Common questions

### What is the Dúos MCP server?

Dúos is an MCP server listed in the public MCP registry as com.usaduos/duos. Two AI perspectives and a cross-review. OAuth required; new consultations use your Dúos quota. This page covers its hosted endpoint (https://usaduos.com/mcp).

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

Dúos scores 74 out of 100 on VerifyMCP. 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 Dúos MCP server expose?

Dúos exposes 4 tools: duos_consultar_cuota, duos_crear_consulta, duos_obtener_resultado, duos_listar_consultas. Their descriptions and schemas cost roughly 463 tokens of context every time the server is loaded.

### Does the Dúos MCP server require authentication?

No. We connected to Dúos without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Dúos MCP server still maintained?

Dúos 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.

## Links

- Remote endpoint: https://usaduos.com/mcp
- Website: https://usaduos.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-usaduos-duos/usaduos.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-usaduos-duos/usaduos.json
- HTML version of this page: https://verifymcp.io/servers/com-usaduos-duos/usaduos