Supplementscanner
REMOTE · MCP.SUPPLEMENTSCANNER.EU · 2 COMPONENTS
Live supplement prices per kg, serving or capsule from stores across Europe. Free, no API key.
Available components
Last scanned (20 hours ago)
Scores higher than 85% of remote servers
Reachable. Last reached 4 Nov 2026.
Category E-commerce
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. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability64
- AI-judged instruction clarity (excellent).Pass
- 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. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management77
- Stability observed for 23 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 0
- The server rewrote its instructions, which are the text every model session reads security
- “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” cosmetic
- 3 Nov 26 +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.
- 1 Nov 26 0
- 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 security
- Schema quality: 288 → 350 ▼ functional
- “find_cheapest” added an optional parameter “filters” cosmetic
- “find_cheapest” added an optional parameter “brand” cosmetic
- “search_products” reworded the description of “query” cosmetic
- 31 Oct 26 +1
- The server rewrote its instructions, which are the text every model session reads security
- 30 Oct 26 0
- The server rewrote its instructions, which are the text every model session reads security
- 28 Oct 26 +1
- “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” cosmetic
4 cosmetic changes on this day. Switch on “Show cosmetic changes” to see them.
- 27 Oct 26 0
- “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” cosmetic
4 cosmetic changes on this day. Switch on “Show cosmetic changes” to see them.
- 26 Oct 26 +1
- The server rewrote its instructions, which are the text every model session reads security
- “search_products” reworded the description of “max_unit_price_cents” cosmetic
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 4 Nov 2026 · Probed https://mcp.supplementscanner.eu
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=supplementscanner.eu | CN=YE2,O=Let's Encrypt,C=US | 8 Oct 2026 | 6 Jan 2027 | ECDSA 256 | ECDSA-SHA384 | 6415ebc9314729f45de22b21f4b95a597a9 |
| SANs: *.supplementscanner.eu, supplementscanner.eu | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp.supplementscanner.eu. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| eu. | present | 35926 | 8 | Verified |
| supplementscanner.eu. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=15552000; preload |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.supplementscanner.eu | Verified | 200 | |
| http (plaintext) | http://mcp.supplementscanner.eu | HTTPS enforced | 301 | https://mcp.supplementscanner.eu/ |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
find_cheapest Find cheapest products ~337
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.
| Name | Type | Req | Description |
|---|---|---|---|
| brand | string | – | Optional: only this brand, by name or slug as it appears in the results. |
| category_slug | string | yes | 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. |
No output schema declared.
No examples provided.
get_product Get product details ~129
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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 | yes | The numeric product id, as returned in the `id` field by find_cheapest or search_products. |
No output schema declared.
No examples provided.
list_categories List categories ~112
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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. |
No output schema declared.
No examples provided.
search_products Search products ~348
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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 | yes | 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 "… |
No output schema declared.
No examples provided.
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.
remote · mcp.supplementscanner.eu
claude mcp add --transport http supplementscanner-scanner 'https://mcp.supplementscanner.eu/'
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.