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Products in every subcategory are included, so a parent slug like \"protein-powder\" works too. Get valid slugs from list_categories.","type":"string"},"filters":{"description":"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:value\", one value per key. Every response lists the ids this category offers in available_filters; an id it does not offer is rejected.","items":{"type":"string"},"type":"array"},"in_stock_only":{"default":false,"description":"When true, only return products currently in stock.","type":"boolean"},"limit":{"default":10,"description":"Maximum number of products to return (1-50).","maximum":50,"minimum":1,"type":"integer"},"market":{"description":"Optional country market to query: nl, be, fr, gb, pl, es, dk, at, de, cz, pt, se, it. Defaults to nl, the market this endpoint answers for. Any other value is rejected.","type":"string"}},"required":["category_slug"],"type":"object"},"name":"find_cheapest"},{"description":"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.","inputSchema":{"properties":{"market":{"description":"Optional country market to query: nl, be, fr, gb, pl, es, dk, at, de, cz, pt, se, it. Defaults to nl, the market this endpoint answers for. Any other value is rejected.","type":"string"},"product_id":{"description":"The numeric product id, as returned in the `id` field by find_cheapest or search_products.","type":"integer"}},"required":["product_id"],"type":"object"},"name":"get_product"},{"description":"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.","inputSchema":{"properties":{"market":{"description":"Optional country market to query: nl, be, fr, gb, pl, es, dk, at, de, cz, pt, se, it. Defaults to nl, the market this endpoint answers for. Any other value is rejected.","type":"string"}},"type":"object"},"name":"list_categories"},{"description":"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.","inputSchema":{"properties":{"category_slug":{"description":"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.","type":"string"},"in_stock_only":{"default":false,"description":"When true, only return products currently in stock.","type":"boolean"},"limit":{"default":20,"description":"Maximum number of products to return (1-50).","maximum":50,"minimum":1,"type":"integer"},"market":{"description":"Optional country market to query: nl, be, fr, gb, pl, es, dk, at, de, cz, pt, se, it. Defaults to nl, the market this endpoint answers for. Any other value is rejected.","type":"string"},"max_unit_price_cents":{"description":"Optional: only return products whose normalized unit price, rounded to whole cents, is at or below this many cents.","minimum":0,"type":"integer"},"query":{"description":"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 \"lab-tested creatine powder\").","minLength":2,"type":"string"}},"required":["query"],"type":"object"},"name":"search_products"}]},"body_sha256":"a254b77a9bac34bd9bcacb853c2310dfc13d8968f1d0978397d7a4a83f8397f9","prev_id":3715769,"leaf":"0xb2a47e7aff970ca5d8de99b3c647934f67d393824821b089f344d3f3839f00e4","leaf_text":"{\"body\":\"a254b77a9bac34bd9bcacb853c2310dfc13d8968f1d0978397d7a4a83f8397f9\",\"id\":3984571,\"kind\":\"mcp.tools\",\"method\":\"probe.mcp/1\",\"observed_us\":1794085584734502,\"prev\":3715769,\"subject\":\"2b0c9c64-b32d-47ac-ae75-2ea947a4a23c\",\"subject_kind\":\"endpoint\"}","day":{"day":"2026-11-07","leaves":195826,"root":"0x17da9e85e1b138541355d33543ff34e3503cd3a49d37728fb53643e2a0416a2d","chained":"0xed34bd4af17282643de8cb9591c84d0aa1b39e1e9ae9864941e543f5a15718cb","anchor_chain":"eip155:5042002","anchor_tx":"0xc3f6784179e0ca32236ba89472473e882a81d03fcc5ce27ca58ded2e01e112aa","anchor_block":71280839},"proof":["0xb2a47bdd00b5880530c176906ba14a4ab8965b6449b8821873a9e5c41b65d011","0x6d1add16ca025845d74e9313e9ea337cd1c8b91acc21681ad3ec3defe57d1af8","0x56e7d383153947365dbf0da79bd372398b60a63e33debb31256043e6b28e302f","0xe19ed6f6d1fac2644f23c631d1009b0f946806debffba25a703ba79a04a64c9c","0x9a82053f2db0e4499e65bc03368a4c5910c7fec4483000dfc27c09266fb1e30a","0x8aa36d37600317c5cbb5e7cca191ba24f9a59d61ae7b2f53d89d99d83870a98c","0x7303472d435dd4adc75bc8d86c0cd69eb3be53d24d5f5522127e90f7d6c88cb2","0xb3fb1a890fd77f45fbf7d5f099f86ef7bcba5af1834a332393ddda6bc61ef29f","0xae4af1004cac6368a81bc41d4a4a3236c0f862c848c3a0170601dacf0a5ab0bb","0xe7665fe847686cee8707518ec4e79eb821fed2ff67abe365af6407f7ae4fb3f7","0x6215d60bd3fb9336868220cbbce6a4d8d011a9af23826db330a3aa345b7aed1c","0xfc490f10297256f1dffccd6e4fa855d0725398203c90dd0a8a77405bdf014404","0xf4ed46d8eff25af1a9e80eed6f55719653e8cb1d0b480eb2d9009abe9c0a5315","0x6065413194326b10c0e957a6ed77fad045c76a708d9f5e291ca690223cf2d7ba","0x2afbeaef1e4de4b2a6d70326e3dc41f9f1c65d4fc46630d217fc932790b0680c","0x3235c8a33ac14441f1a12a6515f670286d48b48fa98eb1dce45d902e053abe01","0x9ea7c2ecc6985da4b761b0f9096b7858b3ac8e3e47717c3840537fb2ff31c6df"]}