# alcometer.de — Promillerechner (remote · www.alcometer.de)

Blood alcohol estimates, drinks per permille level, breath/blood conversion, DE + EU driving limits

- Trust score: 83/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `www.alcometer.de`: 83/100 (this document), [markdown](https://verifymcp.io/servers/de-alcometer-mcp/www.md), [page](https://verifymcp.io/servers/de-alcometer-mcp/www)

## Channel facts

- Endpoint: `https://www.alcometer.de/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.1.0`

## 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: signatures are present but failed validation.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 67/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 758 tokens (~126/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**: 97/100
  - Stability observed for 29 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 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 current MCP spec version (2026-07-28).

## Install

### How do I install the alcometer.de — Promillerechner MCP server?

alcometer.de — Promillerechner is a hosted endpoint at https://www.alcometer.de/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 de-alcometer-mcp 'https://www.alcometer.de/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "de-alcometer-mcp": {
      "url": "https://www.alcometer.de/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "de-alcometer-mcp": {
      "type": "http",
      "url": "https://www.alcometer.de/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.de-alcometer-mcp]
url = "https://www.alcometer.de/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "de-alcometer-mcp": {
      "type": "remote",
      "url": "https://www.alcometer.de/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add de-alcometer-mcp --url 'https://www.alcometer.de/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  de-alcometer-mcp:
    url: "https://www.alcometer.de/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "de-alcometer-mcp": {
      "Transport": "http",
      "Url": "https://www.alcometer.de/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add de-alcometer-mcp -t streamable-http -u 'https://www.alcometer.de/mcp'
```

### Other

```json
{
  "mcpServers": {
    "de-alcometer-mcp": {
      "type": "http",
      "url": "https://www.alcometer.de/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.

### 2026-11-05 (score 83, +1)

No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-02 (score 82, +1)

No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-31 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-29 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-28 (score 79, −1)

- [security] The server rewrote its instructions, which are the text every model session reads
- [functional regression] Schema quality: pass → fail
- [functional] Server version: 1.0.0 → 1.1.0
- [functional] New tool “convert_breath_blood_alcohol”
- [functional] New tool “drink_driving_limits_europe”
- [functional] New tool “drinks_to_reach_permille”

### 2026-10-27 (score 80, +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.

### 2026-10-25 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-22 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (6)

### `estimate_blood_alcohol` (~177 tokens)

Estimate blood alcohol (permille)

Estimate blood alcohol concentration in permille (g/kg, the German unit; 0.5 permille = 0.05 % BAC) from body data and drinks, using Widmark with Watson body water, a 10-30 % resorption deficit and 0.1-0.2 permille/h elimination. Returns the peak and current value as a range and conservative hours until below 0.5, 0.3 and 0.0 permille. Drinks: either an id from list_drinks or ml + vol (percent ABV).

Input parameters:

- `age_years` (number)
- `drinks` (array, required)
- `height_cm` (number, required)
- `hours_since_first_drink` (number)
- `sex` (string, required)
- `weight_kg` (number, required)

### `list_drinks` (~35 tokens)

Typical German drinks

Typical German drink servings with volume, alcohol by volume and grams of pure alcohol. Use the ids in estimate_blood_alcohol.

### `german_drink_driving_limits` (~71 tokens)

German drink-driving limits

The blood alcohol limits in German road traffic (0.0, 0.3, 0.5, 1.1, 1.6 permille): who they apply to and the legal consequences (fines, points, driving bans, criminal offence). Text in German.

### `drinks_to_reach_permille` (~184 tokens)

Drinks to reach a permille level

How many servings of a drink bring a person to a given blood alcohol level (e.g. "how many beers are 0.5 permille"), as a range: the low end assumes a 10 % resorption deficit and slow elimination, the high end 30 % and fast elimination. With hours_of_drinking > 0 the drinks are spread over that time and the level is the one reached at its end. Drink: an id from list_drinks, or ml + vol. Answers a question about amounts, never about whether driving is safe.

Input parameters:

- `age_years` (number)
- `drink` (object, required)
- `height_cm` (number, required)
- `hours_of_drinking` (number)
- `sex` (string, required)
- `target_permille` (number, required)
- `weight_kg` (number, required)

### `convert_breath_blood_alcohol` (~112 tokens)

Convert breath alcohol and blood alcohol

Convert breath alcohol (mg/l, what a roadside breathalyser measures) to blood alcohol (permille) or back, at the German legal ratio 1:2000 (0.25 mg/l = 0.5 permille). Give exactly one of breath_mg_per_l or blood_permille. The individual ratio varies, so the result is the legal equivalent, not a measurement.

Input parameters:

- `blood_permille` (number)
- `breath_mg_per_l` (number)

### `drink_driving_limits_europe` (~82 tokens)

Drink-driving limits in Europe

Blood alcohol limits for car drivers in 25 European countries, with the stricter limits for novice, young or professional drivers. Optional country: ISO code (AT, IT, GB-ENG, GB-SCT …) or German or English name; without it, all countries. Country names and notes in German.

Input parameters:

- `country` (string)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/de-alcometer-mcp/www#diagnostics

## Score history

- 2026-11-05: 83
- 2026-11-04: 82
- 2026-11-03: 82
- 2026-11-02: 82
- 2026-11-01: 81
- 2026-10-31: 81
- 2026-10-30: 80
- 2026-10-29: 80
- 2026-10-28: 79
- 2026-10-27: 80
- 2026-10-26: 79
- 2026-10-25: 79
- 2026-10-24: 78
- 2026-10-23: 78
- 2026-10-22: 78
- 2026-10-21: 77
- 2026-10-20: 77
- 2026-10-19: 76
- 2026-10-18: 76
- 2026-10-17: 75
- 2026-10-16: 75
- 2026-10-15: 74
- 2026-10-14: 74
- 2026-10-13: 73
- 2026-10-12: 73
- 2026-10-11: 72
- 2026-10-10: 72
- 2026-10-07: 71

## Common questions

### What is the alcometer.de — Promillerechner MCP server?

alcometer.de — Promillerechner is an MCP server listed in the public MCP registry as de.alcometer/mcp. Blood alcohol estimates, drinks per permille level, breath/blood conversion, DE + EU driving limits. This page covers its hosted endpoint (https://www.alcometer.de/mcp).

### Is the alcometer.de — Promillerechner MCP server safe to use?

alcometer.de — Promillerechner scores 83 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 alcometer.de — Promillerechner MCP server expose?

alcometer.de — Promillerechner exposes 6 tools: estimate_blood_alcohol, list_drinks, german_drink_driving_limits, drinks_to_reach_permille, convert_breath_blood_alcohol, drink_driving_limits_europe. Their descriptions and schemas cost roughly 661 tokens of context every time the server is loaded.

### Does the alcometer.de — Promillerechner MCP server require authentication?

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

### Is the alcometer.de — Promillerechner MCP server still maintained?

alcometer.de — Promillerechner 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://www.alcometer.de/mcp
- Website: https://www.alcometer.de/llms.txt
- Changelog RSS feed: https://verifymcp.io/servers/de-alcometer-mcp/www.xml
- Changelog JSON feed: https://verifymcp.io/servers/de-alcometer-mcp/www.json
- HTML version of this page: https://verifymcp.io/servers/de-alcometer-mcp/www