# Supplementenscanner (remote · mcp.supplementenscanner.nl)

Cheapest supplements by normalized price per kg, serving or capsule, across Dutch stores.

- Trust score: 86/100 (high trust)
- Change this week: +11
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-22

## Components

- remote · `mcp.supplementenscanner.nl`: 86/100 (this document), [markdown](https://verifymcp.io/servers/nl-supplementenscanner-scanner/mcp.md), [page](https://verifymcp.io/servers/nl-supplementenscanner-scanner/mcp)

## Channel facts

- Endpoint: `https://mcp.supplementenscanner.nl`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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 2026-10-22.

- **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**: 69/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 973 tokens (~243/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**: 100/100
  - No destabilizing schema changes in the last 30 days.
- **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 Supplementenscanner MCP server?

Supplementenscanner is a hosted endpoint at https://mcp.supplementenscanner.nl/, 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 nl-supplementenscanner-scanner 'https://mcp.supplementenscanner.nl/'
```

### Cursor

```json
{
  "mcpServers": {
    "nl-supplementenscanner-scanner": {
      "url": "https://mcp.supplementenscanner.nl/"
    }
  }
}
```

### VS Code

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

### Codex

```toml
[mcp_servers.nl-supplementenscanner-scanner]
url = "https://mcp.supplementenscanner.nl/"
```

### opencode

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

### OpenClaw

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

### Hermes

```yaml
mcp_servers:
  nl-supplementenscanner-scanner:
    url: "https://mcp.supplementenscanner.nl/"
```

### Netclaw

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

### Vellum

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

### Other

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

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.

### 2026-10-19 (score 86, 0)

- [security] Stability: 0.97 → pass

### 2026-10-17 (score 86, +1)

No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-16 (score 85, +10)

- [security improvement] Transport: fail → pass

### 2026-10-15 (score 75, −9)

- [security regression] Transport: pass → fail

### 2026-10-13 (score 84, +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.

### 2026-10-11 (score 83, +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.

### 2026-10-10 (score 82, +1)

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

### 2026-10-06 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 50 to 57. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (4)

### `find_cheapest` (~187 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.

Input parameters:

- `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.
- `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. Defaults to nl, the market this endpoint answers for. Any other value is rejected.

### `search_products` (~245 tokens)

Search products

Search the whole supplement catalog by product name or brand. Typo-tolerant (e.g. "kreatine", "theanin" still match). Results are ordered by relevance, then cheapest normalized price-per-unit. 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. 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 is at or below this many cents.
- `query` (string, required): The product name or brand to search for, e.g. "whey isolaat" or "magnesium bisglycinaat".

### `list_categories` (~104 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. Defaults to nl, the market this endpoint answers for. Any other value is rejected.

### `get_product` (~121 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. 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/nl-supplementenscanner-scanner/mcp#diagnostics

## Score history

- 2026-10-22: 86
- 2026-10-21: 86
- 2026-10-20: 86
- 2026-10-19: 86
- 2026-10-18: 86
- 2026-10-17: 86
- 2026-10-16: 85
- 2026-10-15: 75
- 2026-10-14: 84
- 2026-10-13: 84
- 2026-10-12: 83
- 2026-10-11: 83
- 2026-10-10: 82
- 2026-10-07: 81
- 2026-10-06: 81
- 2026-10-04: 80
- 2026-10-03: 79
- 2026-10-02: 79
- 2026-10-01: 78
- 2026-09-30: 78
- 2026-09-29: 77
- 2026-09-28: 77
- 2026-09-27: 70
- 2026-09-26: 69
- 2026-09-25: 68
- 2026-09-24: 68
- 2026-09-23: 67
- 2026-09-22: 67
- 2026-09-21: 67
- 2026-09-20: 66

## Common questions

### What is the Supplementenscanner MCP server?

Supplementenscanner is an MCP server listed in the public MCP registry as nl.supplementenscanner/scanner. Cheapest supplements by normalized price per kg, serving or capsule, across Dutch stores. This page covers its hosted endpoint (https://mcp.supplementenscanner.nl).

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

Supplementenscanner scores 86 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 Supplementenscanner MCP server expose?

Supplementenscanner exposes 4 tools: find_cheapest, search_products, list_categories, get_product. Their descriptions and schemas cost roughly 657 tokens of context every time the server is loaded.

### Does the Supplementenscanner MCP server require authentication?

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

### Is the Supplementenscanner MCP server still maintained?

Supplementenscanner is still listed as active in the MCP registry. We last reached this channel on 22 October 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.supplementenscanner.nl/
- Website: https://supplementenscanner.nl/voor-agents
- Changelog RSS feed: https://verifymcp.io/servers/nl-supplementenscanner-scanner/mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/nl-supplementenscanner-scanner/mcp.json
- HTML version of this page: https://verifymcp.io/servers/nl-supplementenscanner-scanner/mcp