# io.github.andrewschristison/pondlog-mushroomobserver (npm · @pondlog/mcp-mushroomobserver)

Mushroom Observer MCP server. Mycology observations, fungal taxonomy, and region discovery.

- Trust score: 67/100 (medium)
- Change this week: +26
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `@pondlog/mcp-mushroomobserver`: 67/100 (this document), [markdown](https://verifymcp.io/servers/andrewschristison-pondlog-mushroomobserver/pondlog-mcp-mushroomobserver.md), [page](https://verifymcp.io/servers/andrewschristison-pondlog-mushroomobserver/pondlog-mcp-mushroomobserver)

## Channel facts

- Registry: `npm`
- Package: `@pondlog/mcp-mushroomobserver`
- Version: `0.1.5`
- 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 2026-08-03.

- **Supply Chain Security**: 87/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (97 of 101), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (97 of 101), so this covers what we could see, not the whole tree.
- **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 82 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 62/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1824 tokens (~364/item across 5 items; 5 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**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% 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 andrewschristison-pondlog-mushroomobserver -- npx -y @pondlog/mcp-mushroomobserver
```

### Codex

```bash
codex mcp add andrewschristison-pondlog-mushroomobserver -- npx -y @pondlog/mcp-mushroomobserver
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "andrewschristison-pondlog-mushroomobserver": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@pondlog/mcp-mushroomobserver"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add andrewschristison-pondlog-mushroomobserver --command npx --arg -y --arg @pondlog/mcp-mushroomobserver
```

### Hermes

```yaml
mcp_servers:
  andrewschristison-pondlog-mushroomobserver:
    command: "npx"
    args: ["-y", "@pondlog/mcp-mushroomobserver"]
```

### Other

```json
{
  "mcpServers": {
    "andrewschristison-pondlog-mushroomobserver": {
      "command": "npx",
      "args": [
        "-y",
        "@pondlog/mcp-mushroomobserver"
      ]
    }
  }
}
```

## 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 67, +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.

### 2026-08-02 (score 66, +49)

- [security regression] Provenance: unverified → fail
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: unverified → pass
- [security improvement] Install scripts: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Stability: unverified → 0.23
- [functional improvement] Schema quality: unverified → excellent
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] License: unverified → pass
- [functional] Licence: MIT

### 2026-08-01 (score 17, −6)

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

### 2026-07-31 (score 23, −18)

- [security regression] Malware scan: pass → unverified

### 2026-07-27 (score 41)

First indexed and scored.

## MCP tools (5)

### `search_observations` (~680 tokens)

Search Mushroom Observer Observations

Searches Mushroom Observer, the world's largest dedicated mycology platform with 500,000+ observations and expert-weighted identification confidence scores. Returns matching fungal observations with consensus name, vote-weighted ID confidence (-3..3), date, location name, photo URL when available, and notes. AT LEAST ONE narrowing filter is required: bbox (lat+lng+radius_km), region suffix, taxon name, or date range. Unbounded queries can return tens of MB. For a simple 'what's fruiting near me lately?' query prefer `get_recent_fungi`. For a single observation by id prefer `get_observation`. MO is densest in the Pacific Northwest, Northern California, the Northeastern US, and Western Europe.

Input parameters:

- `confidence_min` (number): Minimum vote-weighted ID confidence in [-3..3]. MO observations carry consensus confidence aggregated from votes by mycology experts and citizen scientists. 1.0+ is a reasonable threshold to filter o…
- `date_from` (string): Inclusive lower bound on observation date in YYYY-MM-DD format. Example: '2025-09-01'.
- `date_to` (string): Inclusive upper bound on observation date in YYYY-MM-DD format. Example: '2025-12-01'.
- `detail` (string): Detail level. 'low' (default) returns flat IDs (~1KB/record); 'high' returns nested location/consensus/owner/images objects (~3-4KB/record). Use 'high' only when needed.
- `has_images` (boolean): If true, only return observations that have at least one photo. Useful for visual ID workflows.
- `include_subtaxa` (boolean): If true, include observations of subtaxa under the queried name (e.g. all species in a genus). Default false.
- `lat` (number): WGS84 latitude in decimal degrees, between -90 and 90. Example: 48.118 for Port Angeles, WA.
- `lng` (number): WGS84 longitude in decimal degrees, between -180 and 180. Example: -123.4307 for Port Angeles, WA.
- `name` (string): Filter by consensus taxon name (substring match against MO's scientific name index). Examples: 'Amanita', 'Cantharellus formosus', 'Boletales'.
- `page` (integer): 1-indexed page number. MO returns ~100 records per page. Default 1.
- `radius_km` (number): Search radius in kilometers. Maximum 500. Default 25. Mushroom Observer is densest in the Pacific Northwest, Northern California, the Northeast US, and Western Europe; use 50–100 km for coverage in s…
- `region` (string): Mushroom Observer region suffix string. MO models geography as comma-separated location names ending in country (e.g. 'Clallam Co., Washington, USA', 'Marin Co., California, USA', 'Sussex, England, U…

### `get_observation` (~105 tokens)

Get a Single Mushroom Observer Observation

Returns one observation in high detail: nested location with bounding box, consensus taxon, all proposed namings with their per-naming confidence and votes, observer, primary image and full image set, and comments. Use after `search_observations` or `get_recent_fungi` returns an id of interest.

Input parameters:

- `id` (integer, required): Mushroom Observer observation id (positive integer). The numeric segment of an MO URL like https://mushroomobserver.org/187521.

### `search_fungal_names` (~288 tokens)

Search Mushroom Observer Fungal Name Index

Search Mushroom Observer's fungal taxonomy by substring. Returns scientific names with author citation, taxonomic rank, full classification (kingdom › phylum › class › order › family), deprecation status, and a link to the MO name page. Use this to translate vernacular interest ('chanterelles') into MO scientific names ('Cantharellus'), to disambiguate between species in a genus, or to confirm whether a name is current vs. deprecated. Mushroom Observer's name index covers 100,000+ fungal names including many synonyms and historical combinations.

Input parameters:

- `include_subtaxa` (boolean): If true, include observations of subtaxa under the queried name (e.g. all species in a genus). Default false.
- `page` (integer): 1-indexed page number. MO returns ~100 records per page. Default 1.
- `query` (string): Substring search against MO's scientific-name index (uses MO's `text_name_has` filter). Examples: 'Cantharellus' (the chanterelle genus), 'Amanita muscaria' (the species), 'Boletales' (an order). Cas…
- `rank` (string): Taxonomic rank filter for `search_fungal_names`. Most fungi searches care about Genus, Species, Family, or Order. MO's full set is exposed.

### `search_regions` (~249 tokens)

Discover Mushroom Observer Region/Location Names

Mushroom Observer's geography is a flat list of comma-separated location names ending in a country (e.g. 'Cape Alava Trail, Olympic National Park, Clallam Co., Washington, USA'). MO's `/locations` endpoint has NO name filter, so this tool runs an observations search with the suffix and harvests unique location-name strings from the results, with per-name observation counts. Use to discover well-formed region suffixes before calling `search_observations` or `get_recent_fungi` with a `region` filter. Try broad-to-narrow: 'Washington, USA' → 'Clallam Co., Washington, USA' → 'Olympic National Park, Clallam Co., Washington, USA'.

Input parameters:

- `max_pages` (integer): Maximum pages of observations to scan when discovering region suffixes. Default 2. MO returns ~100 obs/page; the tool aggregates unique location names across the scanned pages.
- `query` (string, required): Suffix string to match observation locations against. The result includes only unique location_name values that END WITH this string. Examples: 'California, USA', 'Sussex, England, UK', 'Marin Co., C…

### `get_recent_fungi` (~502 tokens)

Recent Fungi Observations Near a Location

Place-aware shortcut: 'what fungi have been observed near here in the last N days?' Provide either bbox (lat+lng+radius_km) OR an MO region suffix string. Returns observations sorted by date with consensus name, confidence score, location, and photo URL. This is the recommended starting tool for any 'what's fruiting?' question. Pages through MO results internally to fill the requested limit. For taxonomy lookup use `search_fungal_names`. For a single record's full detail use `get_observation`. For richer filtering (taxon name, date range) use `search_observations`.

Input parameters:

- `confidence_min` (number): Minimum vote-weighted ID confidence in [-3..3]. MO observations carry consensus confidence aggregated from votes by mycology experts and citizen scientists. 1.0+ is a reasonable threshold to filter o…
- `days` (integer): Time window in days, counted backwards from today. Default 30. Fungi fruit seasonally, values around 30–90 days surface 'currently fruiting' species; longer windows (180–365) build a year-round portr…
- `lat` (number): WGS84 latitude in decimal degrees, between -90 and 90. Example: 48.118 for Port Angeles, WA.
- `limit` (integer): Maximum number of observations to return. Default 50, max 200. The server pages through MO results internally up to 5 pages.
- `lng` (number): WGS84 longitude in decimal degrees, between -180 and 180. Example: -123.4307 for Port Angeles, WA.
- `radius_km` (number): Search radius in kilometers. Maximum 500. Default 25. Mushroom Observer is densest in the Pacific Northwest, Northern California, the Northeast US, and Western Europe; use 50–100 km for coverage in s…
- `region` (string): Mushroom Observer region suffix string. MO models geography as comma-separated location names ending in country (e.g. 'Clallam Co., Washington, USA', 'Marin Co., California, USA', 'Sussex, England, U…

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/andrewschristison-pondlog-mushroomobserver/pondlog-mcp-mushroomobserver#diagnostics

## Score history

- 2026-08-03: 67
- 2026-08-02: 66
- 2026-08-01: 17
- 2026-07-31: 23
- 2026-07-30: 41
- 2026-07-28: 41
- 2026-07-27: 41

## Links

- npm package: https://www.npmjs.com/package/@pondlog/mcp-mushroomobserver
- Socket report: https://socket.dev/npm/package/@pondlog/mcp-mushroomobserver
- Repository: https://github.com/andrewschristison/pondlog
- Changelog RSS feed: https://verifymcp.io/servers/andrewschristison-pondlog-mushroomobserver/pondlog-mcp-mushroomobserver/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/andrewschristison-pondlog-mushroomobserver/pondlog-mcp-mushroomobserver/changelog.json
- HTML version of this page: https://verifymcp.io/servers/andrewschristison-pondlog-mushroomobserver/pondlog-mcp-mushroomobserver