{
  "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": 2,
      "iso_code": "en",
      "url_prefix": "\/en\/"
    },
    "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": 804
    },
    "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\/en\/mcc\/mcc_agent\/product?id_product=804&setCountry=0&setCurrency=1",
    "agent": {
      "root": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/root?setCountry=0&setCurrency=1",
      "sitemap": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/sitemap?setCountry=0&setCurrency=1",
      "search": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/search?setCountry=0&setCurrency=1",
      "cart": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/cart?setCountry=0&setCurrency=1",
      "product": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/product?id_product=804&setCountry=0&setCurrency=1",
      "contexts": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/contexts?resource=product&id_product=804&setCountry=0&setCurrency=1"
    },
    "human": {
      "home": "https:\/\/musiccraft-instruments.com\/",
      "sitemap": "https:\/\/musiccraft-instruments.com\/en\/sitemap",
      "search": "https:\/\/musiccraft-instruments.com\/en\/search",
      "product": "https:\/\/musiccraft-instruments.com\/en\/p\/4-4-stradivari-violin-antonius-stradivarius-label-804.html",
      "cart": "https:\/\/musiccraft-instruments.com\/en\/order",
      "contact": "https:\/\/musiccraft-instruments.com\/en\/contact-us"
    }
  },

  "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\/en\/p\/4-4-stradivari-violin-antonius-stradivarius-label-804.html#product",
      "url": "https:\/\/musiccraft-instruments.com\/en\/p\/4-4-stradivari-violin-antonius-stradivarius-label-804.html",
      "urls": {
        "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/product?id_product=804&setCountry=0&setCurrency=1",
        "contexts": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/contexts?resource=product&id_product=804&setCountry=0&setCurrency=1",
        "human": "https:\/\/musiccraft-instruments.com\/en\/p\/4-4-stradivari-violin-antonius-stradivarius-label-804.html"
      },

      "id_product": 804,
      "name": "Pre-Owned 4\/4 Violin \u2013 Stradivari Model with Antonius Stradivarius Label",
      "description": "Pre-owned full-size Stradivari-model violin with an Antonius Stradivarius label, approx. 50 to 60 years old, inspected and reworked by a master violin maker.",
      "full_description": "This  pre-owned 4\/4 violin  is a one-off instrument based on a Stradivari model and, according to the product information, bears a label reading Antonius Stradivarius. The instrument is approximately 50 to 60 years old and has been inspected and reworked by a master violin maker.  It is fitted with boxwood fittings and Thomastik Dominant strings. This combines the individual character of an older used violin with professional inspection and reworking.  According to the listed product variants, the violin is available either on its own or as a set with case and bow. The Antonius Stradivarius label is stated as a feature of the instrument and does not constitute any further attribution of its actual maker.",
      "additional_text": "Product type: Pre-owned violin \n Size: 4\/4 \n Condition: Used \n One-off instrument \n Model: Stradivari \n Age: approx. 50 to 60 years \n Label: Antonius Stradivarius \n Inspected and reworked by a master violin maker \n Fittings: Boxwood \n Strings: Thomastik Dominant \n Available as instrument only or as a set with case and bow",

      "sku": "901\/3265",
      "mpn": "901\/3265",
      "ean13": "",
      "upc": "",

      "brand": {
        "@type": "Brand",
        "name": "MIGMA eG",
        "url": "https:\/\/musiccraft-instruments.com\/en\/migma-eg_21"      },

      "manufacturer": {
        "@type": "Organization",
        "id_manufacturer": 21,
        "name": "MIGMA eG",
        "url": "https:\/\/musiccraft-instruments.com\/en\/migma-eg_21"      },

      "supplier": {
        "@type": "Organization",
        "id_supplier": 1,
        "name": "Migma e.G."
      },

      "main_category": {
        "id_category": 7,
        "name": "Restoration",
        "link_rewrite": "restoration",
        "urls": {
          "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=7&setCountry=0&setCurrency=1",
          "human": "https:\/\/musiccraft-instruments.com\/en\/restoration-7"
        }
      },

      "categories": [
                            {
            "id_category": 4,
            "name": "Instruments",
            "link_rewrite": "instruments",
            "urls": {
              "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=4&setCountry=0&setCurrency=1",
              "human": "https:\/\/musiccraft-instruments.com\/en\/instruments-4"
            }
          },                    {
            "id_category": 6,
            "name": "Equipment & Essentials",
            "link_rewrite": "equipment-essentials",
            "urls": {
              "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=6&setCountry=0&setCurrency=1",
              "human": "https:\/\/musiccraft-instruments.com\/en\/equipment-essentials-6"
            }
          },                    {
            "id_category": 7,
            "name": "Restoration",
            "link_rewrite": "restoration",
            "urls": {
              "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=7&setCountry=0&setCurrency=1",
              "human": "https:\/\/musiccraft-instruments.com\/en\/restoration-7"
            }
          },                    {
            "id_category": 5,
            "name": "Highlight",
            "link_rewrite": "highlight",
            "urls": {
              "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=5&setCountry=0&setCurrency=1",
              "human": "https:\/\/musiccraft-instruments.com\/en\/highlight-5"
            }
          }                        ],

      "features": [
                            {
            "id_feature": 1,
            "id_feature_value": 3,
            "name": "Product declaration",
            "value": "Single item"
          },                    {
            "id_feature": 1,
            "id_feature_value": 499,
            "name": "Product declaration",
            "value": "Historic & Restored"
          },                    {
            "id_feature": 15,
            "id_feature_value": 130,
            "name": "Taxation",
            "value": "Standard Rate"
          },                    {
            "id_feature": 9,
            "id_feature_value": 148,
            "name": "Instrument",
            "value": "Violin"
          },                    {
            "id_feature": 2,
            "id_feature_value": 502,
            "name": "Badges",
            "value": "Different variants"
          },                    {
            "id_feature": 2,
            "id_feature_value": 501,
            "name": "Badges",
            "value": "Unique piece"
          },                    {
            "id_feature": 18,
            "id_feature_value": 361,
            "name": "Core material",
            "value": "Boxwood"
          },                    {
            "id_feature": 4,
            "id_feature_value": 154,
            "name": "Condition",
            "value": "processed"
          },                    {
            "id_feature": 4,
            "id_feature_value": 153,
            "name": "Condition",
            "value": "used"
          }                        ],

      "agent_faqs": [
              ],

      "images": [
                            {
            "id_image": 3783,
            "cover": true,
            "position": 1,
            "legend": "Pre-Owned 4\/4 Violin \u2013 Stradivari Model with Antonius Stradivarius Label",
            "url": "https:\/\/cdn1.musiccraft-instruments.com\/3783-large_default\/4-4-stradivari-violin-antonius-stradivarius-label.webp"
          },                    {
            "id_image": 3782,
            "cover": false,
            "position": 2,
            "legend": "Pre-Owned 4\/4 Violin \u2013 Stradivari Model with Antonius Stradivarius Label",
            "url": "https:\/\/cdn3.musiccraft-instruments.com\/3782-large_default\/4-4-stradivari-violin-antonius-stradivarius-label.webp"
          },                    {
            "id_image": 3784,
            "cover": false,
            "position": 3,
            "legend": "Pre-Owned 4\/4 Violin \u2013 Stradivari Model with Antonius Stradivarius Label",
            "url": "https:\/\/cdn1.musiccraft-instruments.com\/3784-large_default\/4-4-stradivari-violin-antonius-stradivarius-label.webp"
          },                    {
            "id_image": 3779,
            "cover": false,
            "position": 4,
            "legend": "Pre-Owned 4\/4 Violin \u2013 Stradivari Model with Antonius Stradivarius Label",
            "url": "https:\/\/cdn3.musiccraft-instruments.com\/3779-large_default\/4-4-stradivari-violin-antonius-stradivarius-label.webp"
          },                    {
            "id_image": 3780,
            "cover": false,
            "position": 5,
            "legend": "Pre-Owned 4\/4 Violin \u2013 Stradivari Model with Antonius Stradivarius Label",
            "url": "https:\/\/cdn3.musiccraft-instruments.com\/3780-large_default\/4-4-stradivari-violin-antonius-stradivarius-label.webp"
          },                    {
            "id_image": 3781,
            "cover": false,
            "position": 6,
            "legend": "Pre-Owned 4\/4 Violin \u2013 Stradivari Model with Antonius Stradivarius Label",
            "url": "https:\/\/cdn2.musiccraft-instruments.com\/3781-large_default\/4-4-stradivari-violin-antonius-stradivarius-label.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": 1117
      },

      "offers": {
        "@type": "Offer",
        "offer_scope": "default_variant",
        "id_product": 804,
        "id_product_attribute": 1117,
        "url": "https:\/\/musiccraft-instruments.com\/en\/p\/4-4-stradivari-violin-antonius-stradivarius-label-804.html",
        "price": 950.00,
        "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": 950.00,
          "priceCurrency": "EUR",
          "valueAddedTaxIncluded": true        }
              },

      "variant_offers": [
                            {
            "@type": "Offer",
            "id_product": 804,
            "id_product_attribute": 1117,
            "is_default": true,
            "sku": "901\/3265-1",
            "url": "https:\/\/musiccraft-instruments.com\/en\/p\/4-4-stradivari-violin-antonius-stradivarius-label-804.html",
            "image": "https:\/\/cdn1.musiccraft-instruments.com\/1-large_default\/4-4-stradivari-violin-antonius-stradivarius-label.webp",

                                                                                                                                                                                                                                                "attributes": [
                                              {
                  "group_id": 28,
                  "group_name": "Variant",
                  "value": "Individual instrument"
                }                                          ],
            "attribute_summary": "Variant: Individual instrument",

            "price": {
              "delivery_country": false,
              "currency": "EUR",
              "currency_symbol": "\u20ac",
              "tax_rate": 19,
              "tax_excluded": 798.32,
              "tax_included": 950.00,
              "without_reduction_tax_excluded": 798.32,
              "without_reduction_tax_included": 950.00,
              "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\/en\/shopping-cart?add=1&id_product=804&id_product_attribute=1117&qty=1&setCountry=0&setCurrency=1"
            }
          },                    {
            "@type": "Offer",
            "id_product": 804,
            "id_product_attribute": 1116,
            "is_default": false,
            "sku": "901\/3265-2",
            "url": "https:\/\/musiccraft-instruments.com\/en\/p\/4-4-stradivari-violin-antonius-stradivarius-label-804.html",
            "image": "https:\/\/cdn1.musiccraft-instruments.com\/1-large_default\/4-4-stradivari-violin-antonius-stradivarius-label.webp",

                                                                                                                                                                                                                                                "attributes": [
                                              {
                  "group_id": 28,
                  "group_name": "Variant",
                  "value": "Instrument in a set with case and bow"
                }                                          ],
            "attribute_summary": "Variant: Instrument in a set with case and bow",

            "price": {
              "delivery_country": false,
              "currency": "EUR",
              "currency_symbol": "\u20ac",
              "tax_rate": 19,
              "tax_excluded": 882.35,
              "tax_included": 1050.00,
              "without_reduction_tax_excluded": 882.35,
              "without_reduction_tax_included": 1050.00,
              "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\/en\/shopping-cart?add=1&id_product=804&id_product_attribute=1116&qty=1&setCountry=0&setCurrency=1"
            }
          }                        ],

      "pricing": {
        "scope": "default_variant",
        "default_id_product_attribute": 1117,
        "delivery_country": false,
        "currency": "EUR",
        "currency_symbol": "\u20ac",
        "tax_rate": 19,
        "use_taxes": true,
        "show_taxes": true,
        "price_tax_included": 950.00,
        "price_tax_excluded": 798.32,
        "price_without_reduction": 798.32,
        "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."
      }
    }
  }
}