{ "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": 130 }, "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=130&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=130&setCountry=0&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=130&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\/einhaengesaite-violine-819041-130.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\/einhaengesaite-violine-819041-130.html#product", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/einhaengesaite-violine-819041-130.html", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/product?id_product=130&setCountry=0&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/contexts?resource=product&id_product=130&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/p\/einhaengesaite-violine-819041-130.html" }, "id_product": 130, "name": "Einh\u00e4ngesaite f\u00fcr Violine \u2013 Kleine Verbindung, gro\u00dfe Verantwortung", "description": "Die Einh\u00e4ngesaite f\u00fcr Violine sorgt f\u00fcr eine stabile Verbindung zwischen Saitenhalter und Instrument und unterst\u00fctzt ein ausgewogenes Spielgef\u00fchl.", "full_description": "Manche Teile am Instrument sind nicht sichtbar wichtig. Sondern einfach wichtig. Die Einh\u00e4ngesaite f\u00fcr Violine verbindet den Saitenhalter sicher mit dem Instrument und sorgt f\u00fcr die notwendige Stabilit\u00e4t im gesamten Setup. Sie beeinflusst Spannung, Positionierung und indirekt auch das Schwingungsverhalten der Violine. Gerade bei fein abgestimmten Instrumenten macht eine zuverl\u00e4ssige Einh\u00e4ngesaite einen sp\u00fcrbaren Unterschied im Alltag \u2014 ob beim Stimmen, Spielen oder langfristigen Setup. Stabil genug f\u00fcr dauerhafte Belastung, flexibel genug f\u00fcr sauberes Arbeiten mit dem Instrument. Klein im Bauteil. Wichtig f\u00fcr das ganze System.", "additional_text": "Einh\u00e4ngesaite f\u00fcr Violine \n 4\/4 + 3\/4 Gr\u00f6\u00dfe: 128 mm \n 1\/2 Gr\u00f6\u00dfe: 118 mm \n 1\/4 + 1\/8 + 1\/16 Gr\u00f6\u00dfe: 102 mm \n Stabile Verbindung zwischen Saitenhalter und Instrument \n Zuverl\u00e4ssige Spannung und Positionierung \n Unterst\u00fctzt ausgewogenes Schwingungsverhalten \n Hochwertige Verarbeitung \n Ideal f\u00fcr Reparatur, Austausch und Setup-Optimierung", "sku": "819\/041", "mpn": "819\/041", "ean13": "", "upc": "", "brand": { "@type": "Brand", "name": "Wittner \u2013 Division of GEWA music GmbH", "url": "https:\/\/musiccraft-instruments.com\/de\/wittner-division-of-gewa-music-gmbh_19" }, "manufacturer": { "@type": "Organization", "id_manufacturer": 19, "name": "Wittner \u2013 Division of GEWA music GmbH", "url": "https:\/\/musiccraft-instruments.com\/de\/wittner-division-of-gewa-music-gmbh_19" }, "supplier": { "@type": "Organization", "id_supplier": 1, "name": "Migma e.G." }, "main_category": { "id_category": 79, "name": "Einh\u00e4ngesaiten", "link_rewrite": "einhaengesaiten", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/de\/mcc\/mcc_agent\/category?id_category=79&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/de\/einhaengesaiten-79" } }, "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": 1, "name": "Produkttyp", "value": "Zubeh\u00f6r" }, { "id_feature": 1, "id_feature_value": 150, "name": "Produkttyp", "value": "Ersatzteile" }, { "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": 330, "name": "Bestandteile", "value": "Einh\u00e4ngesaiten" }, { "id_feature": 29, "id_feature_value": 344, "name": "Gr\u00f6\u00dfe f\u00fcr", "value": "1\/16" }, { "id_feature": 29, "id_feature_value": 348, "name": "Gr\u00f6\u00dfe f\u00fcr", "value": "1\/2" }, { "id_feature": 29, "id_feature_value": 342, "name": "Gr\u00f6\u00dfe f\u00fcr", "value": "1\/4" }, { "id_feature": 29, "id_feature_value": 347, "name": "Gr\u00f6\u00dfe f\u00fcr", "value": "1\/8" }, { "id_feature": 29, "id_feature_value": 356, "name": "Gr\u00f6\u00dfe f\u00fcr", "value": "4\/4 + 3\/4 Gr\u00f6\u00dfe" }, { "id_feature": 2, "id_feature_value": 502, "name": "Besonderheit", "value": "Verschiedene Varianten" } ], "agent_faqs": [ ], "images": [ { "id_image": 2358, "cover": true, "position": 1, "legend": "Einh\u00e4ngesaite f\u00fcr Violine \u2013 Kleine Verbindung, gro\u00dfe Verantwortung", "url": "https:\/\/cdn3.musiccraft-instruments.com\/2358-large_default\/einhaengesaite-violine-819041.webp" } ], "shipping_weight": { "@type": "QuantitativeValue", "value": 0.05, "unitCode": "KGM", "note": "Shipping weight, not product content." }, "variant_model": { "has_variants": true, "variant_count": 3, "default_id_product_attribute": 410 }, "offers": { "@type": "Offer", "offer_scope": "default_variant", "id_product": 130, "id_product_attribute": 410, "url": "https:\/\/musiccraft-instruments.com\/de\/p\/einhaengesaite-violine-819041-130.html", "price": 1.90, "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": 1.90, "priceCurrency": "EUR", "valueAddedTaxIncluded": true } }, "variant_offers": [ { "@type": "Offer", "id_product": 130, "id_product_attribute": 409, "is_default": false, "sku": "819\/041", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/einhaengesaite-violine-819041-130.html", "image": "https:\/\/cdn1.musiccraft-instruments.com\/1-large_default\/einhaengesaite-violine-819041.webp", "attributes": [ { "group_id": 10, "group_name": "Gr\u00f6\u00dfe", "value": "1\/2 Gr\u00f6\u00dfe" } ], "attribute_summary": "Gr\u00f6\u00dfe: 1\/2 Gr\u00f6\u00dfe", "price": { "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 3.28, "tax_included": 3.90, "without_reduction_tax_excluded": 3.28, "without_reduction_tax_included": 3.90, "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=130&id_product_attribute=409&qty=1&setCountry=0&setCurrency=1" } }, { "@type": "Offer", "id_product": 130, "id_product_attribute": 410, "is_default": true, "sku": "822\/040", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/einhaengesaite-violine-819041-130.html", "image": "https:\/\/cdn1.musiccraft-instruments.com\/1-large_default\/einhaengesaite-violine-819041.webp", "attributes": [ { "group_id": 10, "group_name": "Gr\u00f6\u00dfe", "value": "4\/4 + 3\/4 Gr\u00f6\u00dfe" } ], "attribute_summary": "Gr\u00f6\u00dfe: 4\/4 + 3\/4 Gr\u00f6\u00dfe", "price": { "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 1.60, "tax_included": 1.90, "without_reduction_tax_excluded": 1.60, "without_reduction_tax_included": 1.90, "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=130&id_product_attribute=410&qty=1&setCountry=0&setCurrency=1" } }, { "@type": "Offer", "id_product": 130, "id_product_attribute": 411, "is_default": false, "sku": "819\/042", "url": "https:\/\/musiccraft-instruments.com\/de\/p\/einhaengesaite-violine-819041-130.html", "image": "https:\/\/cdn1.musiccraft-instruments.com\/1-large_default\/einhaengesaite-violine-819041.webp", "attributes": [ { "group_id": 10, "group_name": "Gr\u00f6\u00dfe", "value": "1\/4 + 1\/8 + 1\/16 Gr\u00f6\u00dfe" } ], "attribute_summary": "Gr\u00f6\u00dfe: 1\/4 + 1\/8 + 1\/16 Gr\u00f6\u00dfe", "price": { "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 3.28, "tax_included": 3.90, "without_reduction_tax_excluded": 3.28, "without_reduction_tax_included": 3.90, "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=130&id_product_attribute=411&qty=1&setCountry=0&setCurrency=1" } } ], "pricing": { "scope": "default_variant", "default_id_product_attribute": 410, "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "use_taxes": true, "show_taxes": true, "price_tax_included": 1.90, "price_tax_excluded": 1.60, "price_without_reduction": 1.60, "reduction_percent": 0, "reduction_price": 0 }, "availability": { "status": "https://schema.org/InStock", "orderable": true, "available_for_order": true, "show_price": true, "quantity": 30, "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." } } } }