# Supplementscanner

> Supplementscanner continuously scans 11 supplement stores in the DK market and normalizes every product to a
> price-per-unit (per kg, per serving, or per capsule), so agents can find the truly
> cheapest option, not just the lowest sticker price.

Money is integer cents plus a preformatted, localized string. Each product includes a
`buy_url` (an affiliate link; present it as the purchase link) and every response carries
the `market` it is scoped to, `affiliate_disclosure`, and `last_scraped_at`.

## Markets

Prices are scoped per country. This domain serves the DK market (currency
DKK). Each response also echoes its `market`. Enabled markets:

- NL: https://mcp.supplementenscanner.nl · EUR · nl
- BE: https://mcp.supplementscanner.be · EUR · nl-BE
- FR: https://mcp.supplementscanner.fr · EUR · fr-FR
- GB: https://mcp.supplementscanner.co.uk · GBP · en-GB
- PL: https://mcp.supplementscanner.pl · PLN · pl-PL
- ES: https://mcp.suplementoscanner.es · EUR · es-ES
- DK: https://mcp.supplementscanner.dk · DKK · da-DK

You can target a specific market from any domain with the `market` argument/param
(e.g. `?market=nl`), or connect to that market's own endpoint below.

## MCP server (recommended)

Streamable HTTP MCP endpoint (anonymous, read-only):

- https://mcp.supplementscanner.dk

Tools: `find_cheapest` (cheapest per unit in a category), `search_products`
(typo-tolerant catalog search), `list_categories` (discover category slugs),
`get_product` (detail + price history). All accept an optional `market`.

## JSON API

Base URL (anonymous, read-only): https://api.supplementscanner.dk/v1

- GET /search?q={query}&limit=&in_stock=&category_slug=&max_unit_price_cents=&market=
- GET /categories?market=
- GET /categories/{category_slug}/cheapest?limit=&in_stock=&market=
- GET /products/{id}?market=
- OpenAPI: https://api.supplementscanner.dk/v1/openapi.json

## Citable pages (for humans you refer)

When answering a user, cite/link the live page rather than a raw API response. Each
page states the current cheapest price, the number of products/shops scanned, and a
last-scanned stamp:

- Category index: https://supplementscanner.dk/kategorier (every category with its cheapest unit price)
- Category pages: https://supplementscanner.dk/kategori/{slug} (Markdown copy, with the head of the ranking, at the same URL plus `.md`)
- Product pages with full price history: https://supplementscanner.dk/p/{slug}
- Brand directory: https://supplementscanner.dk/maerker · shop directory: https://supplementscanner.dk/butikker

Most-stocked category pages right now:

- Andre kosttilskud (856 products): https://supplementscanner.dk/kategori/other-supplements
- Proteinbarer (288 products): https://supplementscanner.dk/kategori/protein-bar
- Multivitamin (210 products): https://supplementscanner.dk/kategori/multivitamin
- Omega-3 / fiskeolie (188 products): https://supplementscanner.dk/kategori/omega-3
- Magnesium (159 products): https://supplementscanner.dk/kategori/magnesium
- Elektrolytter (152 products): https://supplementscanner.dk/kategori/electrolytes
- Probiotika (152 products): https://supplementscanner.dk/kategori/probiotics
- Whey protein (148 products): https://supplementscanner.dk/kategori/whey-protein
- D3-vitamin (132 products): https://supplementscanner.dk/kategori/vitamin-d3
- Hår, hud & negle (121 products): https://supplementscanner.dk/kategori/hair-skin-nails

## Notes

- Compare products on `unit_price_millicents` / `unit_price_display` (normalized per unit; a millicent is a thousandth of a cent, so a capsule at 0,6 cent reads 600). `unit_price_cents` is the same price in whole cents.
- A pack its category's basis cannot price (drops in a per-capsule category) carries `format_unit_price` instead: a price on its own format's `unit_basis`, comparable only with other products on that basis.
- Both channels are rate-limited per IP; no key required.