{"current_listings":[{"buy_url":"https://birkinbagstock.com/go/fp-1787681","currency":"USD","detail_url":"https://birkinbagstock.com/listing/fp-1787681","id":"fp-1787681","merchant":"Fashionphile","price":17805,"title":"Herm\u00e8s Toile Swift Kelly Sellier 28 Ecru Black"},{"buy_url":"https://birkinbagstock.com/go/madison-avenue-H-K-250919-1","currency":"USD","detail_url":"https://birkinbagstock.com/listing/madison-avenue-H-K-250919-1","id":"madison-avenue-H-K-250919-1","merchant":"Madison Avenue Couture","price":27500,"title":"Hermes Kelly Sellier 28 Black Swift and Ecru-Black Toile H Canvas Palladium Hardware"},{"buy_url":"https://birkinbagstock.com/go/madison-avenue-H-K-260821-2-RM","currency":"USD","detail_url":"https://birkinbagstock.com/listing/madison-avenue-H-K-260821-2-RM","id":"madison-avenue-H-K-260821-2-RM","merchant":"Madison Avenue Couture","price":23500,"title":"Hermes \"Lettres Au Carre\" Kelly Retourne 28 Black Swift and Ecru, Capucine, Bleu Indigo Toile De Camp Palladium Hardware"}],"data_url":"https://birkinbagstock.com/data/price-history/kelly-28-black-swift.json","filters":{"color":"Black","leather":"Swift","size":28,"sort":"newest","style":"kelly"},"generated_at":"2026-09-05T10:39:54.512496+00:00","history":{"change":0,"change_label":"$0","change_pct":0.0,"current_listings":3,"data_url":"/data/price-history/kelly-28-black-swift.json","direction":"flat","events":[],"first_date":"2026-09-05","first_median_price":23500,"first_median_price_label":"$23,500","history":[{"date":"2026-09-05","day":"20260905","max_price":27500,"max_price_label":"$27,500","median_price":23500,"median_price_label":"$23,500","min_price":17805,"min_price_label":"$17,805","sample":3}],"history_url":"/price-history/kelly-28-black-swift","label":"Birkin 28 Black Swift","last_date":"2026-09-05","last_median_price":23500,"last_median_price_label":"$23,500","methodology":"Spec history uses daily captured prices for the current visible cohort of live listings. The median series is descriptive asking-price intelligence, not an appraisal or completed-sale index.","observations":1,"sample_listings":3,"slug":"kelly-28-black-swift","status":"one_point","summary":"Birkin 28 Black Swift median first captured at $23,500 on 2026-09-05."},"license":"Public citation dataset. Attribute BirkinBagStock.com and verify merchant prices before purchase.","slug":"kelly-28-black-swift","source":"BirkinBagStock.com","title":"Kelly 28 Black Swift \u2014 Live Inventory Across Verified Resellers","url":"https://birkinbagstock.com/price-history/kelly-28-black-swift"}