# Supplementscanner (remote · mcp.supplementscanner.eu)

Live supplement prices per kg, serving or capsule from stores across Europe. Free, no API key.

- Trust score: 82/100 (high trust)
- Change this week: +2
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

## Components

- remote · `mcp.supplementscanner.eu`: 82/100 (this document), [markdown](https://verifymcp.io/servers/supplementscanner-scanner/mcp.md), [page](https://verifymcp.io/servers/supplementscanner-scanner/mcp)
- npm · `supplementscanner-mcp`: 38/100, [markdown](https://verifymcp.io/servers/supplementscanner-scanner/supplementscanner-mcp.md), [page](https://verifymcp.io/servers/supplementscanner-scanner/supplementscanner-mcp)

## Channel facts

- Endpoint: `https://mcp.supplementscanner.eu`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.2.0`

## 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 2026-11-04.

- **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: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 64/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1423 tokens (~355/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 77/100
  - Stability observed for 23 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.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 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 Supplementscanner MCP server?

Supplementscanner is a hosted endpoint at https://mcp.supplementscanner.eu/, 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 supplementscanner-scanner 'https://mcp.supplementscanner.eu/'
```

### Cursor

```json
{
  "mcpServers": {
    "supplementscanner-scanner": {
      "url": "https://mcp.supplementscanner.eu/"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "supplementscanner-scanner": {
      "type": "http",
      "url": "https://mcp.supplementscanner.eu/"
    }
  }
}
```

### Codex

```toml
[mcp_servers.supplementscanner-scanner]
url = "https://mcp.supplementscanner.eu/"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "supplementscanner-scanner": {
      "type": "remote",
      "url": "https://mcp.supplementscanner.eu/",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add supplementscanner-scanner --url 'https://mcp.supplementscanner.eu/' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  supplementscanner-scanner:
    url: "https://mcp.supplementscanner.eu/"
```

### Netclaw

```json
{
  "McpServers": {
    "supplementscanner-scanner": {
      "Transport": "http",
      "Url": "https://mcp.supplementscanner.eu/"
    }
  }
}
```

### Vellum

```bash
assistant mcp add supplementscanner-scanner -t streamable-http -u 'https://mcp.supplementscanner.eu/'
```

### Other

```json
{
  "mcpServers": {
    "supplementscanner-scanner": {
      "type": "http",
      "url": "https://mcp.supplementscanner.eu/"
    }
  }
}
```

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.

### 2026-11-04 (score 82, 0)

- [security] The server rewrote its instructions, which are the text every model session reads
- [cosmetic] “find_cheapest” reworded the description of “market”
- [cosmetic] “search_products” reworded the description of “market”
- [cosmetic] “list_categories” reworded the description of “market”
- [cosmetic] “get_product” reworded the description of “market”

### 2026-11-03 (score 82, +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.

### 2026-11-01 (score 81, 0)

- [security] The server rewrote its instructions, which are the text every model session reads
- [security] Tool “find_cheapest” rewrote its description, which is the text the model reads
- [security] Tool “search_products” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: 288 → 350
- [cosmetic] “find_cheapest” added an optional parameter “filters”
- [cosmetic] “find_cheapest” added an optional parameter “brand”
- [cosmetic] “search_products” reworded the description of “query”

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

- [security] The server rewrote its instructions, which are the text every model session reads

### 2026-10-30 (score 80, 0)

- [security] The server rewrote its instructions, which are the text every model session reads

### 2026-10-28 (score 80, +1)

- [cosmetic] “get_product” reworded the description of “market”
- [cosmetic] “find_cheapest” reworded the description of “market”
- [cosmetic] “search_products” reworded the description of “market”
- [cosmetic] “list_categories” reworded the description of “market”

### 2026-10-27 (score 79, 0)

- [cosmetic] “find_cheapest” reworded the description of “market”
- [cosmetic] “search_products” reworded the description of “market”
- [cosmetic] “list_categories” reworded the description of “market”
- [cosmetic] “get_product” reworded the description of “market”

### 2026-10-26 (score 79, +1)

- [security] The server rewrote its instructions, which are the text every model session reads
- [cosmetic] “search_products” reworded the description of “max_unit_price_cents”

## MCP tools (4)

### `find_cheapest` (~337 tokens)

Find cheapest products

Find the cheapest supplements by normalized price-per-unit within a category (and all its subcategories). This is the primary tool for "what is the cheapest X?" questions. Use list_categories first to pick a valid category_slug. Narrow it with filters (the category page's attribute filters, such as vegan or a form) and brand; every response lists the filters the category offers in available_filters.

Input parameters:

- `brand` (string): Optional: only this brand, by name or slug as it appears in the results.
- `category_slug` (string, required): The category to search within, e.g. "whey-protein" or "creatine". Products in every subcategory are included, so a parent slug like "protein-powder" works too. Get valid slugs from list_categories.
- `filters` (array): Optional: only products carrying every one of these attributes, the filters of the category page, e.g. ["is_vegan", "is_lab_tested", "form:powder"]. A boolean attribute is its key; an option is "key:…
- `in_stock_only` (boolean): When true, only return products currently in stock.
- `limit` (integer): Maximum number of products to return (1-50).
- `market` (string): Optional country market to query: nl, be, fr, gb, pl, es, dk, at, de, cz. Defaults to nl, the market this endpoint answers for. Any other value is rejected.

### `search_products` (~348 tokens)

Search products

Search the whole supplement catalog the way the website's search box does. A product name or brand is matched typo-tolerantly (e.g. "kreatine", "theanin" still match). In markets where the site reads queries, a request described in words, with qualities (vegan, sugar-free, lab-tested, a form, a brand), is answered as that category with those filters, cheapest per unit first, and interpreted_as says how it was read and what could not be applied. Use find_cheapest instead when you already know the category.

Input parameters:

- `category_slug` (string): Optional: restrict results to this category and all of its subcategories, e.g. "protein-powder". Must be a slug from list_categories; an unknown slug is rejected.
- `in_stock_only` (boolean): When true, only return products currently in stock.
- `limit` (integer): Maximum number of products to return (1-50).
- `market` (string): Optional country market to query: nl, be, fr, gb, pl, es, dk, at, de, cz. Defaults to nl, the market this endpoint answers for. Any other value is rejected.
- `max_unit_price_cents` (integer): Optional: only return products whose normalized unit price, rounded to whole cents, is at or below this many cents.
- `query` (string, required): What the user is looking for, in their own words: a product name or brand ("whey isolaat" or "magnesium bisglycinaat"), or a need with its qualities ("vegan eiwitrepen zonder toegevoegde suiker" or "…

### `list_categories` (~112 tokens)

List categories

List the supplement categories that currently hold priced products, each with a live product count, store count, lowest normalized unit price, and its comparison basis (per_kg / per_serving / per_capsule). Use this to discover a valid category_slug for find_cheapest.

Input parameters:

- `market` (string): Optional country market to query: nl, be, fr, gb, pl, es, dk, at, de, cz. Defaults to nl, the market this endpoint answers for. Any other value is rejected.

### `get_product` (~129 tokens)

Get product details

Get full detail for one product by its id: price, normalized unit price, size, bulk/staffel tiers, buy link, and recent price history. Use the id returned by find_cheapest or search_products.

Input parameters:

- `market` (string): Optional country market to query: nl, be, fr, gb, pl, es, dk, at, de, cz. Defaults to nl, the market this endpoint answers for. Any other value is rejected.
- `product_id` (integer, required): The numeric product id, as returned in the `id` field by find_cheapest or search_products.

## Diagnostics

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

## Score history

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

## Common questions

### What is the Supplementscanner MCP server?

Supplementscanner is an MCP server listed in the public MCP registry as io.github.supplementscanner/scanner. Live supplement prices per kg, serving or capsule from stores across Europe. Free, no API key. This page covers its hosted endpoint (https://mcp.supplementscanner.eu).

### Is the Supplementscanner MCP server safe to use?

Supplementscanner scores 82 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 Supplementscanner MCP server expose?

Supplementscanner exposes 4 tools: find_cheapest, search_products, list_categories, get_product. Their descriptions and schemas cost roughly 926 tokens of context every time the server is loaded.

### Does the Supplementscanner MCP server require authentication?

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

### Is the Supplementscanner MCP server still maintained?

Supplementscanner is still listed as active in the MCP registry. We last reached this channel on 4 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://mcp.supplementscanner.eu/
- Repository: https://github.com/supplementscanner/supplementscanner-mcp
- Website: https://supplementscanner.eu/developers
- Changelog RSS feed: https://verifymcp.io/servers/supplementscanner-scanner/mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/supplementscanner-scanner/mcp.json
- HTML version of this page: https://verifymcp.io/servers/supplementscanner-scanner/mcp