{ "agent_meta": { "type": "agent_product", "schema": "mcc_agent", "schema_version": "1.1", "generated_at": "2026-11-07", "source_of_truth": "MCC Commerce Engine" }, "request_context": { "language": { "id_lang": 1, "iso_code": "de", "url_prefix": "\/de\/" }, "delivery_country": { "id_country": 0, "iso_code": false }, "currency": { "id_currency": 1, "iso_code": "EUR", "name": "Euro", "symbol": "\u20ac" }, "complete": true }, "context_switching": { "available": true, "mode": "on_demand_resolver", "stateless": true, "resolver": "links.agent.contexts", "fetch_when": "requested_context_differs", "dimensions": [ "language", "delivery_country", "currency" ], "unspecified_dimensions": "preserve_request_context", "selection": { "match": "exact", "source": "available_contexts", "result": "available_contexts[].target_url" }, "target": { "resource": "product", "id_product": 154 }, "full_context_in_target_url": true, "requires_session_persistence": false, "manual_url_construction_allowed": false, "instruction": "When a requested language, delivery country or currency differs from request_context, fetch links.agent.contexts. Preserve dimensions not explicitly changed by the user, select the exact matching entry and follow target_url unchanged." }, "platform": { "name": "MCC Agentic Commerce", "version": "1.0", "commerce_engine": "MCC Commerce Engine", "agent_interface": "MCC Agentic API" }, "instructions": { "purpose": "This endpoint provides the complete machine-readable representation of one product in the active language, delivery-country and currency context.", "rules": [ "All prices, taxes, availability and actions in data.product apply only to request_context.", "When variants exist, select the matching entry from data.product.variant_offers and use its exact price, availability and action URL.", "Do not infer a variant price from the product-level price or from another variant.", "Use the exact action.url supplied by the selected offer. Do not construct add-to-cart URLs manually.", "When language, delivery country or currency must change, fetch links.agent.contexts and follow the exact matching target_url unchanged.", "Prices, taxes, inventory and availability are calculated by the shop.", "Do not invent unavailable product, variant, price, stock, shipping or checkout information." ] }, "capabilities": { "root": true, "sitemap": true, "search": true, "product": true, "contexts": true, "category": true, "cart": true, "cms_page": false, "checkout": false }, "links": { "self": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/product?id_product=154&setCountry=0&setCurrency=1", "agent": { "root": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/root?setCountry=0&setCurrency=1", "sitemap": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/sitemap?setCountry=0&setCurrency=1", "search": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/search?setCountry=0&setCurrency=1", "cart": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/cart?setCountry=0&setCurrency=1", "product": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/product?id_product=154&setCountry=0&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=154&setCountry=0&setCurrency=1" }, "human": { "home": "https:\/\/musiccraft-instruments.com\/", "sitemap": "https:\/\/musiccraft-instruments.com\/de\/sitemap", "search": "https:\/\/musiccraft-instruments.com\/de\/suche", "product": "https:\/\/musiccraft-instruments.com\/de\/p\/endknopf-violine-verschiedene-schaftstaerken-154.html", "cart": "https:\/\/musiccraft-instruments.com\/de\/bestellung", "contact": "https:\/\/musiccraft-instruments.com\/de\/kontaktiere-uns" } }, "commerce_model": { "pricing": "server_calculated", "tax": "server_calculated", "shipping": "server_calculated", "inventory": "live", "currencies": "context_based", "languages": "url_based" }, "data": { "product": { "@context": "https://schema.org", "@type": "Product", "@id": "https:\/\/musiccraft-instruments.com\/de\/p\/endknopf-violine-verschiedene-schaftstaerken-154.html#product", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/endknopf-violine-verschiedene-schaftstaerken-154.html", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/product?id_product=154&setCountry=0&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=154&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/p\/endknopf-violine-verschiedene-schaftstaerken-154.html" }, "id_product": 154, "name": "Endknopf f\u00fcr Violine \u2013 verschiedene Schaftst\u00e4rken", "description": "Violin-Endknopf in verschiedenen Schaftst\u00e4rken f\u00fcr sicheren Halt von Saitenhalter und Einh\u00e4ngesaite.", "full_description": "Ein Instrument funktioniert nur dann wirklich zuverl\u00e4ssig, wenn auch die kleinen Details stimmen. Dieser Endknopf f\u00fcr Violine sorgt f\u00fcr stabilen Halt, gleichm\u00e4\u00dfige Spannung und ein sicheres Spielgef\u00fchl im Alltag. Genau die Art von Zubeh\u00f6r, die man nicht st\u00e4ndig bemerken m\u00f6chte \u2014 weil sie einfach funktioniert. Durch die verschiedenen Schaftst\u00e4rken eignet sich der Endknopf ideal f\u00fcr Reparaturen, den Austausch bestehender Teile oder den professionellen Instrumentenbau. Solides Zubeh\u00f6r f\u00fcr Musiker, die lieber spielen als nachjustieren.", "additional_text": "Endknopf f\u00fcr Violine \n Verschiedene Schaftst\u00e4rken erh\u00e4ltlich: schwach, mittel und stark \n Sicherer Halt f\u00fcr Saitenhalter und Einh\u00e4ngesaite \n Geeignet f\u00fcr Reparatur und Instrumentenbau \n Klassische Bauform f\u00fcr Streichinstrumente", "sku": "834\/19", "mpn": "834\/19", "ean13": "", "upc": "", "brand": { "@type": "Brand", "name": "MIGMA eG", "url": "https:\/\/musiccraft-instruments.com\/de\/migma-eg_21" }, "manufacturer": { "@type": "Organization", "id_manufacturer": 21, "name": "MIGMA eG", "url": "https:\/\/musiccraft-instruments.com\/de\/migma-eg_21" }, "supplier": { "@type": "Organization", "id_supplier": 1, "name": "Migma e.G." }, "main_category": { "id_category": 81, "name": "Endkn\u00f6pfe", "link_rewrite": "endknoepfe", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/category?id_category=81&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/endknoepfe-81" } }, "categories": [ { "id_category": 4, "name": "Instrumente", "link_rewrite": "instrumente", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/category?id_category=4&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/instrumente-4" } }, { "id_category": 6, "name": "Equipment & Essentials", "link_rewrite": "equipment-essentials", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/category?id_category=6&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/equipment-essentials-6" } }, { "id_category": 7, "name": "Restauration", "link_rewrite": "restauration", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/category?id_category=7&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/restauration-7" } }, { "id_category": 5, "name": "Highlight", "link_rewrite": "highlight", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/category?id_category=5&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/highlight-5" } } ], "features": [ { "id_feature": 1, "id_feature_value": 150, "name": "Produkttyp", "value": "Ersatzteile" }, { "id_feature": 1, "id_feature_value": 1, "name": "Produkttyp", "value": "Zubeh\u00f6r" }, { "id_feature": 15, "id_feature_value": 130, "name": "Besteuerung", "value": "Standard Rate" }, { "id_feature": 9, "id_feature_value": 148, "name": "Instrument", "value": "Violine" }, { "id_feature": 28, "id_feature_value": 332, "name": "Bestandteile", "value": "Endkn\u00f6pfe" }, { "id_feature": 2, "id_feature_value": 502, "name": "Besonderheit", "value": "Verschiedene Varianten" }, { "id_feature": 18, "id_feature_value": 358, "name": " Kernmaterial", "value": "Ebenholz" } ], "agent_faqs": [ ], "images": [ { "id_image": 2383, "cover": true, "position": 1, "legend": "Endknopf f\u00fcr Violine \u2013 verschiedene Schaftst\u00e4rken", "url": "https:\/\/cdn3.musiccraft-instruments.com\/2383-large_default\/endknopf-violine-verschiedene-schaftstaerken.webp" } ], "shipping_weight": { "@type": "QuantitativeValue", "value": 0.02, "unitCode": "KGM", "note": "Shipping weight, not product content." }, "variant_model": { "has_variants": true, "variant_count": 2, "default_id_product_attribute": 475 }, "offers": { "@type": "Offer", "offer_scope": "default_variant", "id_product": 154, "id_product_attribute": 475, "url": "https:\/\/musiccraft-instruments.com\/de\/p\/endknopf-violine-verschiedene-schaftstaerken-154.html", "price": 4.70, "priceCurrency": "EUR", "availability": "https://schema.org/InStock", "itemCondition": "https://schema.org/NewCondition", "seller": { "@type": "Organization", "name": "musiccraft - instruments", "url": "https:\/\/musiccraft-instruments.com\/", "telephone": "+49 (0) 34 20 63 14 888" }, "priceSpecification": { "@type": "PriceSpecification", "price": 4.70, "priceCurrency": "EUR", "valueAddedTaxIncluded": true } }, "variant_offers": [ { "@type": "Offer", "id_product": 154, "id_product_attribute": 475, "is_default": true, "sku": "834\/19-SW", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/endknopf-violine-verschiedene-schaftstaerken-154.html", "image": "https:\/\/cdn3.musiccraft-instruments.com\/1-large_default\/endknopf-violine-verschiedene-schaftstaerken.webp", "attributes": [ { "group_id": 12, "group_name": "Schaftst\u00e4rke", "value": "Schwach" } ], "attribute_summary": "Schaftst\u00e4rke: Schwach", "price": { "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 3.95, "tax_included": 4.70, "without_reduction_tax_excluded": 3.95, "without_reduction_tax_included": 4.70, "value_added_tax_included": true }, "availability": "https://schema.org/InStock", "quantity": 10, "minimal_quantity": 1, "action": { "type": "add_to_cart", "method": "GET", "enabled": true, "quantity": 1, "url": "https:\/\/musiccraft-instruments.com\/de\/warenkorb?add=1&id_product=154&id_product_attribute=475&qty=1&setCountry=0&setCurrency=1" } }, { "@type": "Offer", "id_product": 154, "id_product_attribute": 474, "is_default": false, "sku": "834\/19-MI", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/endknopf-violine-verschiedene-schaftstaerken-154.html", "image": "https:\/\/cdn3.musiccraft-instruments.com\/1-large_default\/endknopf-violine-verschiedene-schaftstaerken.webp", "attributes": [ { "group_id": 12, "group_name": "Schaftst\u00e4rke", "value": "Mittel" } ], "attribute_summary": "Schaftst\u00e4rke: Mittel", "price": { "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 3.95, "tax_included": 4.70, "without_reduction_tax_excluded": 3.95, "without_reduction_tax_included": 4.70, "value_added_tax_included": true }, "availability": "https://schema.org/InStock", "quantity": 10, "minimal_quantity": 1, "action": { "type": "add_to_cart", "method": "GET", "enabled": true, "quantity": 1, "url": "https:\/\/musiccraft-instruments.com\/de\/warenkorb?add=1&id_product=154&id_product_attribute=474&qty=1&setCountry=0&setCurrency=1" } } ], "pricing": { "scope": "default_variant", "default_id_product_attribute": 475, "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "use_taxes": true, "show_taxes": true, "price_tax_included": 4.70, "price_tax_excluded": 3.95, "price_without_reduction": 3.95, "reduction_percent": 0, "reduction_price": 0 }, "availability": { "status": "https://schema.org/InStock", "orderable": true, "available_for_order": true, "show_price": true, "quantity": 20, "minimal_quantity": 1, "variant_stock_available": true, "allow_buy_when_out_of_stock": false, "stock_management": false, "is_virtual": false } }, "actions": { "add_to_cart": { "type": "cart_add", "method": "GET", "requires_context": true, "required_context_parameters": [ "setCountry", "setCurrency" ], "instruction": "Use the exact action.url from data.product.offers for a simple product or from the selected data.product.variant_offers entry. Respect action.enabled and action.quantity." } } } }