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Check what sneakers resell for

Here's how to check sneaker resale prices with ChatGPT or Claude: what a pair sells for on StockX in your size, and whether the price is going up or down.

  1. 01

    Add Firecrawl to your AI

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  2. 02

    Copy the prompt

    @Firecrawl Use Alexandria to check what Air Jordan 4 Black Cat sneakers are selling for on StockX in a men's size 10, and whether the price is going up or down.

  3. 03

    What came back

    Claude Code (Claude Opus 5.5) sent back, word for word:

    Size 10 of the current Air Jordan 4 Black Cat (the 2025 retro) sells for about $310–320 on StockX, and the price has been flat for the past week, with a small dip in the last few hours.

    Jordan 4 Retro Black Cat (2025): men's size 10

    Retail was $220 and it released Nov 28, 2025.

    Price
    Last sale$290
    Lowest ask (standard shipping)$317 ($339 with fees)
    Lowest ask (express shipping)$373–376
    Highest bid$280
    90-day average, size 10$306 (865 sales)
    Sales in the last 72 hours13

    Is it going up or down? It's holding steady, not moving much either way.

    • I looked at the last 50 size 10 sales (Oct 13–20). Standard-shipping sales were almost all between $312 and $319 the whole week. The occasional $380–395 sales were express orders, where buyers pay extra for faster shipping, so they don't show a price change.
    • The two most recent sales were $310 and then $290. That's a slight soft patch, but there have been one-off sales around $272–280 before, so it isn't a clear downtrend yet.
    • Across all sizes, the 90-day average ($315) is a bit above the 12-month average ($302). Prices firmed up over the year and have levelled off since.
    • In practice, a bid around $290–300 might get filled, and buying now costs about $317 before fees.

    If you meant the original 2020 release

    This one is much pricier, sells rarely, and is trending down. Recent size 10 sales were $742 in May, roughly $526–706 from July to September, then $595 on Oct 5 and $368 on Oct 14. The lowest ask is $632 and the highest bid is $367. Only 6 pairs sold in the last 90 days, so each sale moves the price a lot.

    All numbers are StockX US prices in USD as of Oct 20, 2026. The sales history only goes back about a week, so the longer-term view relies on StockX's 90-day and 12-month averages. Firecrawl hit its rate limit once during the lookup, which caused a short delay but didn't affect the data.

    Sources usedRan Oct 20, 2026