Flag the underpriced listing, on real sold prices

The problem

You cannot spot a deal without a real price

• —Asking prices cannot tell you whether a listing is underpriced — only sold prices can.
• —Every new category you support needs comps; building that by hand per vertical does not scale.
• —Stale or noisy comps produce false deals that burn your users’ trust.
• —You want a price check inside the scan loop, not a separate manual step.

How it works

Comps inside your scan loop

1. 01

   Scan listings

   Your tool already sees the live asking price of each listing.

2. 02

   Ask Grail what it sells for

   One call returns the real sold median and range for that keyword.

3. 03

   Flag the gap

   Under median by your threshold? Surface it. Your users get deals, not guesses.