{"openapi":"3.0.3","info":{"title":"Sharpest eBay price API","version":"1.0","description":"Free, no key. Daily aggregates of US eBay Buy It Now asking prices (item + shipping, USD; not sold prices) for ~1,000 products. CC BY 4.0: credit Sharpest with a link to sharpest.ai.","contact":{"url":"https://sharpest.ai/api"},"license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"}},"servers":[{"url":"https://sharpest.ai"}],"paths":{"/api/products.json":{"get":{"summary":"Every tracked product with today's listing count, low, 25th percentile and median price","responses":{"200":{"description":"JSON object with a products array"}}}},"/api/{niche}/{slug}.json":{"get":{"summary":"One product's daily price history","parameters":[{"name":"niche","in":"path","required":true,"schema":{"type":"string"},"example":"gpus"},{"name":"slug","in":"path","required":true,"schema":{"type":"string"},"example":"rtx-3090"}],"responses":{"200":{"description":"JSON object with a history array of {day, n, low, p25, median}"},"404":{"description":"Unknown product"}}}},"/price-history.csv":{"get":{"summary":"All products, all days, as CSV","responses":{"200":{"description":"text/csv"}}}},"/price-index.csv":{"get":{"summary":"Monthly price index per category (first month = 100), as CSV","responses":{"200":{"description":"text/csv"}}}}}}