# es.embals/embalses (remote · embals.es)

Nivel actual e histórico de los embalses de España (MITECO/SAIH). Datos abiertos CC BY 4.0.

- Trust score: 76/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-24

## Components

- remote · `embals.es`: 76/100 (this document), [markdown](https://verifymcp.io/servers/es-embals-embalses/embals.md), [page](https://verifymcp.io/servers/es-embals-embalses/embals)

## Channel facts

- Endpoint: `https://embals.es/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 2026-10-24.

- **Endpoint Security**: 74/100
  - 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.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - 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**: 67/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1125 tokens (~187/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 53/100
  - Stability observed for 16 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 92/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 75% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 7 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 es.embals/embalses MCP server?

es.embals/embalses is a hosted endpoint at https://embals.es/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 es-embals-embalses 'https://embals.es/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "es-embals-embalses": {
      "url": "https://embals.es/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "es-embals-embalses": {
      "type": "http",
      "url": "https://embals.es/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.es-embals-embalses]
url = "https://embals.es/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "es-embals-embalses": {
      "type": "remote",
      "url": "https://embals.es/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add es-embals-embalses --url 'https://embals.es/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  es-embals-embalses:
    url: "https://embals.es/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "es-embals-embalses": {
      "Transport": "http",
      "Url": "https://embals.es/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add es-embals-embalses -t streamable-http -u 'https://embals.es/mcp'
```

### Other

```json
{
  "mcpServers": {
    "es-embals-embalses": {
      "type": "http",
      "url": "https://embals.es/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.

### 2026-10-22 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-20 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-18 (score 74, +1)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional regression] Schema quality: 949 → 1125
- [functional] Schema quality: good → excellent
- [functional] New tool “sequia_agricola”

### 2026-10-17 (score 73, 0)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional regression] Schema quality: 710 → 949
- [functional] Schema quality: excellent → good
- [functional] New tool “caudal_rio”

### 2026-10-15 (score 73, +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.

### 2026-10-13 (score 72, +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.

### 2026-10-12 (score 71, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 13. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-10 (score 70, +1)

- [functional improvement] Stability: unverified → 0.07

## MCP tools (6)

### `estado_embalse` (~149 tokens)

Estado de un embalse

Nivel actual de un embalse (pantano) de España: porcentaje de llenado, agua embalsada y capacidad en hm³, variación semanal y fecha del dato, con enlace a su ficha en embals.es. Acepta el nombre con o sin 'embalse de', 'pantano de' o 'pantà de' y sin tildes (p. ej. 'Sau', 'pantano de Yesa', 'la viñuela').

Input parameters:

- `nombre` (string, required): Nombre del embalse, p. ej. 'Sau', 'Yesa', 'Entrepeñas'.
- `provincia` (string): Provincia, solo para desambiguar nombres repetidos.

### `buscar_embalses` (~192 tokens)

Buscar y ordenar embalses

Lista embalses de España filtrando por nombre, provincia, comunidad autónoma o cuenca hidrográfica, ordenados por capacidad, por los más llenos o por los más vacíos. Útil para '¿qué embalses hay en Huesca?', 'los pantanos más vacíos de Andalucía' o 'embalses de la cuenca del Segura'.

Input parameters:

- `comunidad` (string): Comunidad autónoma, p. ej. 'Cataluña', 'Comunidad Valenciana'.
- `cuenca` (string): Cuenca hidrográfica: Ebro, Duero, Tajo, Guadiana, Guadalquivir, Júcar, Segura, Miño-Sil, Cantábrico…
- `limite` (integer)
- `orden` (string)
- `provincia` (string)
- `texto` (string): Parte del nombre del embalse.

### `resumen_agua_embalsada` (~116 tokens)

Agua embalsada en España, una comunidad, provincia o cuenca

Total de agua embalsada y porcentaje de llenado de la reserva hídrica de España o de una comunidad autónoma, provincia o cuenca hidrográfica, con la variación semanal, los embalses más llenos y más vacíos y, para España, la comparación con el mismo momento del año pasado y la media de 10 años.

Input parameters:

- `ambito` (string)
- `nombre` (string): Nombre de la comunidad, provincia o cuenca (no hace falta para España).

### `historico_embalse` (~114 tokens)

Histórico de un embalse

Evolución semanal de un embalse con la serie oficial del MITECO (desde 1988): últimas semanas, el nivel en la misma semana de cada año anterior, y el máximo y el mínimo del periodo. Sirve para '¿está más lleno que el año pasado?' o '¿cuándo estuvo tan bajo?'.

Input parameters:

- `anos` (integer): Años hacia atrás.
- `nombre` (string, required): Nombre del embalse.
- `provincia` (string): Provincia, solo para desambiguar.

### `caudal_rio` (~208 tokens)

Caudal de un río

Caudal medio semanal (m³/s) de los ríos de España en las ~120 estaciones de aforo del boletín hidrológico del MITECO, frente a lo normal para la época (mediana de la misma semana en los años anteriores, desde 2001), con la misma semana de años anteriores y los extremos de la serie. Con `nombre` da una estación ('Ebro en Zaragoza', 'Tajo en Alcántara', 'Torrelavega') o todas las de un río ('Guadalquivir'); sin él, el resumen de España o de una cuenca con los ríos más secos y más crecidos.

Input parameters:

- `cuenca` (string): Cuenca hidrográfica, para el resumen o para acotar la búsqueda: Ebro, Duero, Tajo…
- `nombre` (string): Río, estación o río y lugar: 'Ebro', 'Ebro en Zaragoza', 'Sil en San Esteban'.

### `sequia_agricola` (~153 tokens)

Sequía agrícola (Copernicus)

Qué parte de España, de una comunidad autónoma o de una provincia está en sequía según el Indicador Combinado de Sequía (CDI) del Observatorio Europeo de la Sequía (Copernicus): % del territorio en vigilancia (falta lluvia), aviso (también falta humedad en el suelo), alerta (además la vegetación lo acusa) o recuperación. Un dato cada diez días, con 3 a 5 semanas de retraso. Sin `lugar`, España y las provincias más afectadas.

Input parameters:

- `lugar` (string): Provincia o comunidad: 'Jaén', 'Cataluña', 'Comunidad de Madrid'. Vacío o 'España' para el total.

## Diagnostics

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

## Score history

- 2026-10-24: 76
- 2026-10-23: 76
- 2026-10-22: 76
- 2026-10-21: 75
- 2026-10-20: 75
- 2026-10-19: 74
- 2026-10-18: 74
- 2026-10-17: 73
- 2026-10-16: 73
- 2026-10-15: 73
- 2026-10-14: 72
- 2026-10-13: 72
- 2026-10-12: 71
- 2026-10-10: 70
- 2026-10-08: 69

## Common questions

### What is the es.embals/embalses MCP server?

es.embals/embalses is an MCP server listed in the public MCP registry as es.embals/embalses. Nivel actual e histórico de los embalses de España (MITECO/SAIH). Datos abiertos CC BY 4.0. This page covers its hosted endpoint (https://embals.es/mcp).

### Is the es.embals/embalses MCP server safe to use?

es.embals/embalses scores 76 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 es.embals/embalses MCP server expose?

es.embals/embalses exposes 6 tools: estado_embalse, buscar_embalses, resumen_agua_embalsada, historico_embalse, caudal_rio, sequia_agricola. Their descriptions and schemas cost roughly 932 tokens of context every time the server is loaded.

### Does the es.embals/embalses MCP server require authentication?

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

### Is the es.embals/embalses MCP server still maintained?

es.embals/embalses is still listed as active in the MCP registry. We last reached this channel on 24 October 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://embals.es/mcp
- Changelog RSS feed: https://verifymcp.io/servers/es-embals-embalses/embals.xml
- Changelog JSON feed: https://verifymcp.io/servers/es-embals-embalses/embals.json
- HTML version of this page: https://verifymcp.io/servers/es-embals-embalses/embals