# Clara — Personal Clean Air Planner (remote · clara-mcp.southlondonscientific.com)

UK personal air quality advice and daily exposure assessment. Pairs with Hermes for live data.

- Trust score: 57/100 (low)
- Change this week: +7
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `clara-mcp.southlondonscientific.com`: 57/100 (this document), [markdown](https://verifymcp.io/servers/com-southlondonscientific-clara/clara-mcp.md), [page](https://verifymcp.io/servers/com-southlondonscientific-clara/clara-mcp)

## Channel facts

- Endpoint: `https://clara-mcp.southlondonscientific.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.3.0`

## 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 2026-08-03.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 2 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - 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**: 41/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1553 tokens (~776/item across 2 items; 2 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 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.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http com-southlondonscientific-clara https://clara-mcp.southlondonscientific.com/mcp
```

### Codex

```toml
[mcp_servers.com-southlondonscientific-clara]
url = "https://clara-mcp.southlondonscientific.com/mcp"
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add com-southlondonscientific-clara --url https://clara-mcp.southlondonscientific.com/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-southlondonscientific-clara:
    url: "https://clara-mcp.southlondonscientific.com/mcp"
```

### Other

```json
{
  "mcpServers": {
    "com-southlondonscientific-clara": {
      "type": "http",
      "url": "https://clara-mcp.southlondonscientific.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.

### 2026-08-03 (score 57, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-01 (score 56, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 55, +3)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-29 (score 52, +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.

### 2026-07-28 (score 51, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-27 (score 50, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 50)

First indexed and scored.

## MCP tools (2)

### `contextual_advice` (~405 tokens)

Personalised air quality advice for a UK location and a specific
user context.

Use this tool whenever the user asks an air-quality question that
depends on *who they are* or *what they're about to do*: e.g. asthma,
pregnancy, school-age child, gas cooker at home, tube commute,
outdoor exercise. It composes location-specific pollution with the
user's personal context to produce evidence-based advice — far more
targeted than a generic "high pollution day" handout.

Composable with Hermes: pass pm25/no2 from Hermes get_current_aq for
advice based on live readings rather than annual average estimates.

Returns structured advice with a plain-English summary, health context,
and local intervention information. Present the 'summary' to users first.

Args:
    postcode: UK postcode (e.g. "SE17 1RL"). Provides coords + LAEI pollution.
    latitude: Latitude for coordinate-based lookup.
    longitude: Longitude for coordinate-based lookup.
    pm25: PM2.5 concentration in ug/m3. Overrides location-based estimate.
    no2: NO2 concentration in ug/m3. Overrides location-based estimate.
    setting: Context — residential, school, workplace, outdoor_exercise, commute.
    has_gas_cooker: Whether the person has a gas cooker (affects indoor advice).
    commute_mode: If setting is commute — walk, cycle, bus, car, train, tube.
    has_indoor_sources: Indoor pollution sources (smoking, woodstove).
    audience: Target audience — general, children, elderly, respiratory, pregnant.

Input parameters:

- `audience` (string)
- `commute_mode`
- `has_gas_cooker` (boolean)
- `has_indoor_sources` (boolean)
- `latitude`
- `longitude`
- `no2`
- `pm25`
- `postcode`
- `setting` (string)

### `exposure_assessment` (~281 tokens)

Estimate personal daily air pollution exposure across home, work, and commute.

Uses time-weighted modelling across environments: home (with indoor source
adjustments), work, and commute (with route-based pollution and transport mode
factors). Based on annual average pollution estimates, not live readings.

Args:
    home_postcode: Home location UK postcode (e.g. "SE17 1RL"). Required.
    work_postcode: Work/school location postcode. Omit if not commuting.
    transport_mode: Commute mode — walk, cycle, bus, car, train, tube.
    work_frequency: How often you commute — most_days, some_days, less_often, never.
    commute_hour: Hour of commute (0-23) for time-of-day pollution adjustment.
    cooker_type: Home cooker type — gas, electric, induction, unknown.
    smoking_at_home: Whether anyone smokes indoors (major PM2.5 source).
    tube_line: London Underground line for tube commuters (e.g. "victoria").

Input parameters:

- `commute_hour`
- `cooker_type` (string)
- `home_postcode` (string, required)
- `smoking_at_home` (boolean)
- `transport_mode` (string)
- `tube_line`
- `work_frequency` (string)
- `work_postcode`

## Diagnostics

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

## Score history

- 2026-08-03: 57
- 2026-08-02: 56
- 2026-08-01: 56
- 2026-07-31: 55
- 2026-07-30: 52
- 2026-07-29: 52
- 2026-07-28: 51
- 2026-07-27: 50
- 2026-07-26: 50

## Links

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