{ "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": 801 }, "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=801&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=801&setCountry=0&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=801&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\/violine-4-4-guarneri-joseph-guarnerius-zettel-801.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\/violine-4-4-guarneri-joseph-guarnerius-zettel-801.html#product", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/violine-4-4-guarneri-joseph-guarnerius-zettel-801.html", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/product?id_product=801&setCountry=0&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=801&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/p\/violine-4-4-guarneri-joseph-guarnerius-zettel-801.html" }, "id_product": 801, "name": "Gespielte Violine 4\/4 \u2013 Modell Guarneri mit Zettel Joseph Guarnerius", "description": "Gespielte 4\/4-Violine im Guarneri-Modell mit Zettel Joseph Guarnerius, ca. 50 bis 60 Jahre alt, vom Geigenbaumeister \u00fcberpr\u00fcft und \u00fcberholt.", "full_description": "Diese gespielte Violine in 4\/4-Gr\u00f6\u00dfe ist ein etwa 50 bis 60 Jahre altes Einzelst\u00fcck im Guarneri-Modell. Das Instrument wurde von einem Geigenbaumeister \u00fcberpr\u00fcft und \u00fcberholt sowie spielfertig eingerichtet. Im Inneren befindet sich ein Zettel mit der Aufschrift Joseph Guarnerius. Das Instrument weist laut Anbieter keine Besch\u00e4digungen auf und ist mit einer Buchsbaumgarnitur ausgestattet. Der vorhandene Zettel wird dabei als Merkmal des Instruments angegeben und stellt keine weitergehende Zuschreibung des Herstellers dar. Die Violine ist wahlweise einzeln oder im Set mit Etui und Bogen erh\u00e4ltlich. Als gebrauchtes Einzelst\u00fcck verbindet sie den individuellen Charakter eines \u00e4lteren Instruments mit einer fachm\u00e4nnisch \u00fcberpr\u00fcften und spielfertig eingerichteten Ausstattung.", "additional_text": "Produkttyp: gespielte Violine \n Gr\u00f6\u00dfe: 4\/4 \n Zustand: gebraucht \n Einzelst\u00fcck \n Modell: Guarneri \n Alter: ca. 50 bis 60 Jahre \n Zettel: Joseph Guarnerius \n Vom Geigenbaumeister \u00fcberpr\u00fcft und \u00fcberholt \n Spielfertig eingerichtet \n Laut Anbieter keine Besch\u00e4digungen \n Garnitur: Buchsbaum \n Erh\u00e4ltlich als einzelnes Instrument oder im Set mit Etui und Bogen", "sku": "901\/3259", "mpn": "901\/3259", "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=0&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=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": 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": 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": 3765, "cover": true, "position": 1, "legend": "Gespielte Violine 4\/4 \u2013 Modell Guarneri mit Zettel Joseph Guarnerius", "url": "https:\/\/cdn1.musiccraft-instruments.com\/3765-large_default\/violine-4-4-guarneri-joseph-guarnerius-zettel.webp" }, { "id_image": 3764, "cover": false, "position": 2, "legend": "Gespielte Violine 4\/4 \u2013 Modell Guarneri mit Zettel Joseph Guarnerius", "url": "https:\/\/cdn1.musiccraft-instruments.com\/3764-large_default\/violine-4-4-guarneri-joseph-guarnerius-zettel.webp" }, { "id_image": 3766, "cover": false, "position": 3, "legend": "Gespielte Violine 4\/4 \u2013 Modell Guarneri mit Zettel Joseph Guarnerius", "url": "https:\/\/cdn3.musiccraft-instruments.com\/3766-large_default\/violine-4-4-guarneri-joseph-guarnerius-zettel.webp" }, { "id_image": 3761, "cover": false, "position": 4, "legend": "Gespielte Violine 4\/4 \u2013 Modell Guarneri mit Zettel Joseph Guarnerius", "url": "https:\/\/cdn1.musiccraft-instruments.com\/3761-large_default\/violine-4-4-guarneri-joseph-guarnerius-zettel.webp" }, { "id_image": 3762, "cover": false, "position": 5, "legend": "Gespielte Violine 4\/4 \u2013 Modell Guarneri mit Zettel Joseph Guarnerius", "url": "https:\/\/cdn1.musiccraft-instruments.com\/3762-large_default\/violine-4-4-guarneri-joseph-guarnerius-zettel.webp" }, { "id_image": 3763, "cover": false, "position": 6, "legend": "Gespielte Violine 4\/4 \u2013 Modell Guarneri mit Zettel Joseph Guarnerius", "url": "https:\/\/cdn2.musiccraft-instruments.com\/3763-large_default\/violine-4-4-guarneri-joseph-guarnerius-zettel.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": 1111 }, "offers": { "@type": "Offer", "offer_scope": "default_variant", "id_product": 801, "id_product_attribute": 1111, "url": "https:\/\/musiccraft-instruments.com\/de\/p\/violine-4-4-guarneri-joseph-guarnerius-zettel-801.html", "price": 1790.00, "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": 1790.00, "priceCurrency": "EUR", "valueAddedTaxIncluded": true } }, "variant_offers": [ { "@type": "Offer", "id_product": 801, "id_product_attribute": 1111, "is_default": true, "sku": "901\/3259-1", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/violine-4-4-guarneri-joseph-guarnerius-zettel-801.html", "image": "https:\/\/cdn1.musiccraft-instruments.com\/3765-large_default\/violine-4-4-guarneri-joseph-guarnerius-zettel.webp", "attributes": [ { "group_id": 28, "group_name": "Variante", "value": "Instrument einzeln" } ], "attribute_summary": "Variante: Instrument einzeln", "price": { "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 1504.20, "tax_included": 1790.00, "without_reduction_tax_excluded": 1504.20, "without_reduction_tax_included": 1790.00, "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=801&id_product_attribute=1111&qty=1&setCountry=0&setCurrency=1" } }, { "@type": "Offer", "id_product": 801, "id_product_attribute": 1110, "is_default": false, "sku": "901\/3259-2", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/violine-4-4-guarneri-joseph-guarnerius-zettel-801.html", "image": "https:\/\/cdn3.musiccraft-instruments.com\/3766-large_default\/violine-4-4-guarneri-joseph-guarnerius-zettel.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": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 1588.24, "tax_included": 1890.00, "without_reduction_tax_excluded": 1588.24, "without_reduction_tax_included": 1890.00, "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=801&id_product_attribute=1110&qty=1&setCountry=0&setCurrency=1" } } ], "pricing": { "scope": "default_variant", "default_id_product_attribute": 1111, "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "use_taxes": true, "show_taxes": true, "price_tax_included": 1790.00, "price_tax_excluded": 1504.20, "price_without_reduction": 1504.20, "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." } } } }