# io.github.charistas/posokanei-mcp (npm · posokanei-mcp)

Unofficial read-only MCP server for Greek supermarket price data from PosoKanei.

- Trust score: 65/100 (medium)
- Change this week: +20
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `posokanei-mcp`: 65/100 (this document), [markdown](https://verifymcp.io/servers/charistas-posokanei-mcp/posokanei-mcp.md), [page](https://verifymcp.io/servers/charistas-posokanei-mcp/posokanei-mcp)

## Channel facts

- Registry: `npm`
- Package: `posokanei-mcp`
- Version: `0.1.1`
- 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 (95 of 99), 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 (95 of 99), 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 44 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 60/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 638 tokens (~63/item across 10 items; 10 tools + 0 resources), lean.
  - 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**: 89/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 68% 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 charistas-posokanei-mcp -- npx -y posokanei-mcp
```

### Codex

```bash
codex mcp add charistas-posokanei-mcp -- npx -y posokanei-mcp
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add charistas-posokanei-mcp --command npx --arg -y --arg posokanei-mcp
```

### Hermes

```yaml
mcp_servers:
  charistas-posokanei-mcp:
    command: "npx"
    args: ["-y", "posokanei-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "charistas-posokanei-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "posokanei-mcp"
      ]
    }
  }
}
```

## 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 65, +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 64, +44)

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

### 2026-08-01 (score 20, −7)

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

### 2026-07-31 (score 27, +3)

- [security regression] Malware scan: pass → unverified
- [functional improvement] Tool coverage: unverified → 100

### 2026-07-30 (score 24, −21)

- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified

### 2026-07-27 (score 45)

First indexed and scored.

## MCP tools (10)

### `search_products` (~97 tokens)

Search PosoKanei supermarket products by Greek or English product text. Returns current price summaries and retailer prices.

Input parameters:

- `page` (integer): Result page.
- `pageSize` (integer): Results per page. Capped at 50.
- `query` (string, required): Product search text, for example 'γάλα' or 'feta'.
- `sortBy` (string): Sort field.
- `sortOrder` (string): Sort order.

### `get_product` (~81 tokens)

Get details and retailer prices for one PosoKanei product id.

Input parameters:

- `countries` (string): Country code list accepted by the API. Defaults to GR.
- `includeTax` (boolean): Include tax in displayed prices.
- `productId` (string, required): PosoKanei product id.
- `sortRetailers` (string): Retailer price sort order.

### `lookup_barcode` (~74 tokens)

Find a product by EAN/GTIN barcode and return current supermarket prices.

Input parameters:

- `barcode` (string, required): 8, 12, or 13 digit barcode.
- `countries` (string): Country code list accepted by the API. Defaults to GR.
- `includeTax` (boolean): Include tax in displayed prices.

### `list_products_by_category` (~85 tokens)

List products in a PosoKanei category id, sorted by unit price by default.

Input parameters:

- `category` (string, required): Category id from list_categories.
- `isInternational` (boolean): Filter international comparison products when set.
- `page` (integer)
- `pageSize` (integer)
- `sortBy` (string)
- `sortOrder` (string)

### `list_categories` (~72 tokens)

List PosoKanei product categories. The default response is simplified because the full tree is very large.

Input parameters:

- `includeCounts` (boolean)
- `includeHidden` (boolean)
- `maxDepth` (integer): Maximum category tree depth to return.
- `maxItems` (integer): Maximum category nodes to return.

### `list_retailers` (~36 tokens)

List retailers known to PosoKanei.

Input parameters:

- `countries` (string): Country filter. Use 'all' or 'GR'.

### `get_price_history` (~60 tokens)

Get product details including price history when available from PosoKanei.

Input parameters:

- `countries` (string)
- `includeTax` (boolean)
- `priceType` (string)
- `productId` (string, required): PosoKanei product id.

### `compare_competitors` (~58 tokens)

Get competitor or comparable product data for one product id when available.

Input parameters:

- `includeTax` (boolean)
- `productId` (string, required): PosoKanei product id.
- `retailer` (string): Optional retailer id to anchor comparison.

### `compare_basket` (~57 tokens)

Compare a small shopping basket across retailers. Items can be product ids, barcodes, or search queries. Query matching uses the first search result.

Input parameters:

- `items` (array, required): Basket items. Prefer productId or barcode when possible for accuracy.

### `get_stats` (~18 tokens)

Get high-level PosoKanei dataset stats.

## Diagnostics

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

## Score history

- 2026-08-03: 65
- 2026-08-02: 64
- 2026-08-01: 20
- 2026-07-31: 27
- 2026-07-30: 24
- 2026-07-28: 45
- 2026-07-27: 45

## Links

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