{ "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": 1, "iso_code": "DE" }, "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": 813 }, "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=813&setCountry=1&setCurrency=1", "agent": { "root": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/root?setCountry=1&setCurrency=1", "sitemap": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/sitemap?setCountry=1&setCurrency=1", "search": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/search?setCountry=1&setCurrency=1", "cart": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/cart?setCountry=1&setCurrency=1", "product": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/product?id_product=813&setCountry=1&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=813&setCountry=1&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\/wilhelm-glass-violine-4-4-1875-813.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\/wilhelm-glass-violine-4-4-1875-813.html#product", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/wilhelm-glass-violine-4-4-1875-813.html", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/product?id_product=813&setCountry=1&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=813&setCountry=1&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/p\/wilhelm-glass-violine-4-4-1875-813.html" }, "id_product": 813, "name": "Gespielte Violine 4\/4 \u2013 Wilhelm Gla\u00df von 1875 im Stradivari-Modell", "description": "Gespielte 4\/4-Violine mit Zettel Wilhelm Gla\u00df, Brund\u00f6bra bei Klingenthal, erbaut 1875 und 1926 von Emil M\u00fcller regeneriert. Im Stradivari-Modell mit Evah-Pirazzi-Saiten.", "full_description": "Diese gespielte Violine in 4\/4-Gr\u00f6\u00dfe tr\u00e4gt einen Zettel mit der Angabe Wilhelm Gla\u00df, Brund\u00f6bra bei Klingenthal, und wurde laut Produktbeschreibung im Jahr 1875 erbaut. Das Instrument ist als Modell nach Stradivari ausgef\u00fchrt und wird als historisches Einzelst\u00fcck angeboten. Im Jahr 1926 wurde die Violine vom Geigenbauer Emil M\u00fcller aus Sch\u00f6neck regeneriert; auch hierzu ist ein entsprechender Zettel vorhanden. Das Instrument besitzt einen geteilten Boden sowie einen altimitierten br\u00e4unlich-schwarzen Lack und ist mit Evah-Pirazzi-Saiten ausgestattet. Die Violine wurde von einem Handwerksmeister \u00fcberpr\u00fcft und aufbereitet. Sie ist wahlweise einzeln oder im Set mit Etui und Bogen erh\u00e4ltlich. Die Angaben zu Wilhelm Gla\u00df, zum Baujahr 1875 und zur Regenerierung durch Emil M\u00fcller werden entsprechend der vorhandenen Zettel und Produktbeschreibung wiedergegeben.", "additional_text": "Produkttyp: gespielte Violine \n Gr\u00f6\u00dfe: 4\/4 \n Zustand: gebraucht \n Einzelst\u00fcck \n Modell: Stradivari-Modell \n Zettel: Wilhelm Gla\u00df, Brund\u00f6bra bei Klingenthal \n Baujahr: 1875 \n 1926 vom Geigenbauer Emil M\u00fcller, Sch\u00f6neck, regeneriert \n Zus\u00e4tzlicher Zettel zur Regenerierung vorhanden \n Boden: geteilt \n Lackierung: altimitierter br\u00e4unlich-schwarzer Lack \n Saiten: Evah Pirazzi \n Vom Handwerksmeister \u00fcberpr\u00fcft und aufbereitet \n Erh\u00e4ltlich als einzelnes Instrument oder im Set mit Etui und Bogen", "sku": "901\/3283", "mpn": "901\/3283", "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": 7, "name": "Restauration", "link_rewrite": "restauration", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/category?id_category=7&setCountry=1&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/restauration-7" } }, "categories": [ { "id_category": 4, "name": "Instrumente", "link_rewrite": "instrumente", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/category?id_category=4&setCountry=1&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=1&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=1&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=1&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/highlight-5" } } ], "features": [ { "id_feature": 1, "id_feature_value": 3, "name": "Produkttyp", "value": "Einzelartikel" }, { "id_feature": 1, "id_feature_value": 499, "name": "Produkttyp", "value": "Historisch & Restauriert" }, { "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": 2, "id_feature_value": 502, "name": "Besonderheit", "value": "Verschiedene Varianten" }, { "id_feature": 2, "id_feature_value": 501, "name": "Besonderheit", "value": "Unikat" }, { "id_feature": 18, "id_feature_value": 361, "name": " Kernmaterial", "value": "Buchsbaum" }, { "id_feature": 4, "id_feature_value": 154, "name": "Kondition", "value": "aufbereitet" }, { "id_feature": 4, "id_feature_value": 153, "name": "Kondition", "value": "gebraucht" } ], "agent_faqs": [ ], "images": [ { "id_image": 3833, "cover": true, "position": 1, "legend": "Gespielte Violine 4\/4 \u2013 Wilhelm Gla\u00df von 1875 im Stradivari-Modell", "url": "https:\/\/cdn3.musiccraft-instruments.com\/3833-large_default\/wilhelm-glass-violine-4-4-1875.webp" }, { "id_image": 3832, "cover": false, "position": 2, "legend": "Gespielte Violine 4\/4 \u2013 Wilhelm Gla\u00df von 1875 im Stradivari-Modell", "url": "https:\/\/cdn3.musiccraft-instruments.com\/3832-large_default\/wilhelm-glass-violine-4-4-1875.webp" }, { "id_image": 3834, "cover": false, "position": 3, "legend": "Gespielte Violine 4\/4 \u2013 Wilhelm Gla\u00df von 1875 im Stradivari-Modell", "url": "https:\/\/cdn3.musiccraft-instruments.com\/3834-large_default\/wilhelm-glass-violine-4-4-1875.webp" }, { "id_image": 3829, "cover": false, "position": 4, "legend": "Gespielte Violine 4\/4 \u2013 Wilhelm Gla\u00df von 1875 im Stradivari-Modell", "url": "https:\/\/cdn3.musiccraft-instruments.com\/3829-large_default\/wilhelm-glass-violine-4-4-1875.webp" }, { "id_image": 3830, "cover": false, "position": 5, "legend": "Gespielte Violine 4\/4 \u2013 Wilhelm Gla\u00df von 1875 im Stradivari-Modell", "url": "https:\/\/cdn2.musiccraft-instruments.com\/3830-large_default\/wilhelm-glass-violine-4-4-1875.webp" }, { "id_image": 3831, "cover": false, "position": 6, "legend": "Gespielte Violine 4\/4 \u2013 Wilhelm Gla\u00df von 1875 im Stradivari-Modell", "url": "https:\/\/cdn3.musiccraft-instruments.com\/3831-large_default\/wilhelm-glass-violine-4-4-1875.webp" } ], "shipping_weight": { "@type": "QuantitativeValue", "value": 2, "unitCode": "KGM", "note": "Shipping weight, not product content." }, "variant_model": { "has_variants": true, "variant_count": 2, "default_id_product_attribute": 1127 }, "offers": { "@type": "Offer", "offer_scope": "default_variant", "id_product": 813, "id_product_attribute": 1127, "url": "https:\/\/musiccraft-instruments.com\/de\/p\/wilhelm-glass-violine-4-4-1875-813.html", "price": 4500.00, "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": 4500.00, "priceCurrency": "EUR", "valueAddedTaxIncluded": true } }, "variant_offers": [ { "@type": "Offer", "id_product": 813, "id_product_attribute": 1127, "is_default": true, "sku": "901\/3283-1", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/wilhelm-glass-violine-4-4-1875-813.html", "image": "https:\/\/cdn3.musiccraft-instruments.com\/3833-large_default\/wilhelm-glass-violine-4-4-1875.webp", "attributes": [ { "group_id": 28, "group_name": "Variante", "value": "Instrument einzeln" } ], "attribute_summary": "Variante: Instrument einzeln", "price": { "delivery_country": "DE", "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 3781.51, "tax_included": 4500.00, "without_reduction_tax_excluded": 3781.51, "without_reduction_tax_included": 4500.00, "value_added_tax_included": true }, "availability": "https://schema.org/InStock", "quantity": 1, "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=813&id_product_attribute=1127&qty=1&setCountry=1&setCurrency=1" } }, { "@type": "Offer", "id_product": 813, "id_product_attribute": 1126, "is_default": false, "sku": "901\/3283-2", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/wilhelm-glass-violine-4-4-1875-813.html", "image": "https:\/\/cdn3.musiccraft-instruments.com\/3834-large_default\/wilhelm-glass-violine-4-4-1875.webp", "attributes": [ { "group_id": 28, "group_name": "Variante", "value": "Instrument im Set mit Etui und Bogen" } ], "attribute_summary": "Variante: Instrument im Set mit Etui und Bogen", "price": { "delivery_country": "DE", "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 3949.58, "tax_included": 4700.00, "without_reduction_tax_excluded": 3949.58, "without_reduction_tax_included": 4700.00, "value_added_tax_included": true }, "availability": "https://schema.org/InStock", "quantity": 1, "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=813&id_product_attribute=1126&qty=1&setCountry=1&setCurrency=1" } } ], "pricing": { "scope": "default_variant", "default_id_product_attribute": 1127, "delivery_country": "DE", "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "use_taxes": true, "show_taxes": true, "price_tax_included": 4500.00, "price_tax_excluded": 3781.51, "price_without_reduction": 3781.51, "reduction_percent": 0, "reduction_price": 0 }, "availability": { "status": "https://schema.org/InStock", "orderable": true, "available_for_order": true, "show_price": true, "quantity": 2, "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." } } } }