Live supplement prices per kg, serving or capsule from Dutch and Belgian stores. Free, no API key.
Score is being calculated.
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.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Maximum number of products to return (1-50). | |
| market | No | Optional country market to query: nl, be. Defaults to nl, the market this endpoint answers for. Any other value is rejected. | |
| category_slug | 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. | |
| in_stock_only | No | When true, only return products currently in stock. |
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 | Required | Description | Default |
|---|---|---|---|
| market | No | Optional country market to query: nl, be. Defaults to nl, the market this endpoint answers for. Any other value is rejected. | |
| product_id | Yes | The numeric product id, as returned in the `id` field by find_cheapest or search_products. |
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 | Required | Description | Default |
|---|---|---|---|
| market | No | Optional country market to query: nl, be. Defaults to nl, the market this endpoint answers for. Any other value is rejected. |
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.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | Maximum number of products to return (1-50). | |
| query | Yes | The product name or brand to search for, e.g. "whey isolaat" or "magnesium bisglycinaat". | |
| market | No | Optional country market to query: nl, be. Defaults to nl, the market this endpoint answers for. Any other value is rejected. | |
| category_slug | No | 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 | No | When true, only return products currently in stock. | |
| max_unit_price_cents | No | Optional: only return products whose normalized unit price is at or below this many cents. |
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
find_cheapestget_productlist_categoriessearch_productsCheapest supplements by normalized price per kg, serving or capsule, across Dutch stores.
Evidence-ranked supplement data: search, compare, price history, goal recs. No API key.
Supplement prices, price history, SupplementScore, verified discount codes, UCP catalog tools
Live Dutch supermarket prices and promotions (Albert Heijn, Jumbo, Lidl, Aldi and more) for AI.
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