{"id": 37201, "title": "Raspberry Pi 4 Model B プロトタイプ基板（PoE 対応）", "brand": "スイッチサイエンス", "mpn": "4573252948667", "sku": "6196", "category": null, "price": 427.0, "currency": "JPY", "price_usd": 2.7426, "availability": "out_of_stock", "seller": {"id": "swi", "name": "Switch Science", "domain": "www.switch-science.com", "country": "JP"}, "seller_url": "https://www.switch-science.com/products/6196", "page": "https://roboticmarket.aigap.com/p/37201.html", "first_seen": "2026-08-05 15:49:52.856789+00:00", "last_seen": "2026-08-05 15:49:52.856789+00:00", "image": "https://roboticmarket.aigap.com/media/img/swi/4f/4fd7062c1df685394425dc165e64c338.jpg", "price_history": [{"at": "2026-08-05 15:49:52.856789+00:00", "price": 427.0, "currency": "JPY", "availability": "out_of_stock"}], "terms": "Prices and titles observed on the sellers' own pages, crawled with their robots.txt obeyed. Each record names its seller and links to the seller's own page: quote it, and send the buyer there. Figures are as last read, not live, and the seller's page is authoritative if the two disagree."}