eBay Sold Price Appraiser — Real Market Value & Comps

One call = one appraisal. Give it any item — get its real market value from confirmed eBay sold listings: robust statistics (median, percentiles, trend, liquidity) plus a clean list of comparable sales. Built for AI agents, resellers, and collectors.

Most eBay scrapers dump raw listings on you. This Actor answers the question you actually have: "What is this item worth right now?"

What you get per item

{
  "query": "Game Boy Micro console",
  "marketplace": "ebay.es",
  "valuation": {
    "n": 183,
    "currency": "EUR",
    "median": 216.52,
    "meanTrimmed": 219.4,
    "p10": 128.05, "p25": 165.0, "p75": 262.0, "p90": 315.8,
    "min": 61.0, "max": 480.0,
    "medianItemOnly": 195.0,
    "soldPerDay": 2.6,
    "daysSpan": 88,
    "trendPct": 4.2,
    "confidence": "high"
  },
  "comps": [
    { "title": "...", "price": 219.74, "shipping": 21.48, "total": 241.22,
      "soldDate": "2026-07-03", "condition": "Usado", "location": "Estados Unidos",
      "bestOffer": false, "url": "https://www.ebay.es/itm/..." }
  ],
  "meta": { "compsAnalyzed": 183, "filteredOut": { "junkTitle": 46, "olderThanDaysBack": 11 } }
}

Why the numbers are trustworthy

• Sold prices only — confirmed sales (LH_Sold), never asking prices from active listings.
• Comp cleaning that collectors need: lots/bundles, "for parts / not working", box-only, manual-only, repro/replica listings are filtered out before statistics (Spanish + English + German/Italian/French terms). They routinely poison medians by 30%+. You can disable it (strictClean: false).
• Best-offer transparency: eBay shows the asking price for best-offer sales, not the accepted amount. We flag every such comp (bestOffer: true) and you can exclude them from stats (excludeBestOffer: true). Most tools silently mix them in.
• Robust statistics: median and percentile band (p10–p90) instead of a naive average; 10% trimmed mean; confidence level based on sample size and dispersion.
• Liquidity & trend: soldPerDay tells you how fast the item moves; trendPct compares the newer half of sales vs the older half.

Use cases

• AI agents: a single tool call answers "what's it worth?" — clean JSON, no post-processing needed.
• Resellers / arbitrage: check the real resale value (+ shipping totals) before you buy.
• Collectors: track what your grail actually sells for, in your marketplace and currency.
• Insurance / trade-ins: defensible market-value snapshots with comps attached.

Marketplaces

ebay.com, ebay.es, ebay.co.uk, ebay.de, ebay.fr, ebay.it, ebay.ca, ebay.com.au — prices and dates parsed in local formats, one currency per appraisal (no mixed-currency stats).

Input

Field	Description
query	Item to appraise, e.g. "Game Boy Micro console"
items	Batch mode: up to 25 items per run, each with optional per-item overrides
marketplace	One of the 8 sites above (default ebay.com)
condition	any / new / used
priceMin / priceMax	Clip obvious mispriced outliers
daysBack	1–90 days of sales history (eBay limit)
maxComps	How many comps to include in the output (stats always use all analyzed)
strictClean	Filter lots/parts/repro junk (default on)
excludeBestOffer	Drop best-offer sales from stats (default off, always flagged)

Use with AI agents (MCP)

This Actor is exposed as a tool on the Apify MCP Server — connect once and your agent can appraise items directly:

{
  "mcpServers": {
    "ebay-sold-price-appraiser": {
      "url": "https://mcp.apify.com?tools=jdepablos/ebay-sold-price-appraiser",
      "headers": { "Authorization": "Bearer <APIFY_TOKEN>" }
    }
  }
}

Claude Code one-liner:

$claude mcp add --transport http ebay-appraiser "https://mcp.apify.com?tools=jdepablos/ebay-sold-price-appraiser" --header "Authorization: Bearer <APIFY_TOKEN>"

Prefer plain HTTP? A public OpenAPI spec is available for the run-sync API.

Pricing

Pay per event: one flat fee per appraised item, comps included. Failed items are never charged.

FAQ

How many sales does one appraisal analyze? Up to 240 most-recent sold listings per item (one SERP page at maximum density), filtered to your daysBack window.

What if there's little data? You still get the stats with confidence: "low" and the comps found — rare items are honestly labeled, not padded.

Does it work for any category? Yes. The junk filters are tuned for collectibles/electronics but are generic; disable strictClean for categories where "lot" is the normal unit of sale.

More data tools by this developer

• Second-hand Deal Scanner ES — Vinted/Wallapop/Milanuncios deals vs eBay sold
• Spanish Company Feed (BORME) — daily registry acts as JSON
• Spain Public Auctions (BOE) — judicial auctions with market comparison
• Trademark Watch (TMview) — new filings & opposition deadlines