deal.ly alternative: price from what sold, not what is listed
deal.ly (its connector is called SentientData Market Scan) finds live eBay listings priced under the current Buy It Now median. Underpriced AI prices the item in your hand from real eBay sold comps, then takes it through to a listing. First scan free.
Underpriced AI vs deal.ly
| Feature | Underpriced AI | deal.ly |
|---|---|---|
| Identify any item from a photo | Keyword search; photo input not stated | |
| Barcode scanning (books, CDs, vinyl) | Not stated | |
| Real sold comps with clickable links to verify | None; states its medians come from live Buy It Now listings, not sold comps | |
| Sold data across eBay, Poshmark, Mercari | eBay US only | |
| Live active listings | Live eBay US Buy It Now listings and medians, refreshed per call | |
| Market saturation + category sell-through | Not stated | |
| Platform fee / take-home calculator | flip_margin: profit and ROI after marketplace fees | |
| Weekly portfolio email: value, what sold, what's trending | Not stated | |
| AI-generated listing title + description | Not stated | |
| Direct eBay publishing (10 markets) | Not stated | |
| Bonanza publishing | Not stated | |
| Cross-listing (one-click autofill) | eBay, Facebook, Poshmark, Mercari, Depop, Vinted, Whatnot, OfferUp, Etsy + | Not stated |
| One-tap reprice / refresh value | Not stated | |
| Inventory management (death pile, storage, tags) | Not stated | |
| Purchase price + profit/loss tracking | Not stated | |
| Analytics dashboard (ROI, aging, sourcing) | Median, p25, p75, min, max, sample size | |
| Estate & garage sale finder | Not stated | |
| Platforms | iOS, Android, Web, extension | MCP server, REST API, web deal feed; apps not stated |
| AI model | Claude Opus 5.5 | Not stated |
| Free first scan, no card | 25 calls a day per IP, no signup | |
| Sold prices from more than one source, with automatic failover | eBay only | |
| Works inside ChatGPT, Claude and coding assistants (MCP) | Four tools: scan_deals, price_check, flip_margin, hot_list | |
| Scan packs, no subscription required | 5 scans for $3 | $29 for a 30-day key; 0.02 USDC per call via x402 |
| eBay Promoted Listings at your own ad rate | Not stated | |
| Pricing accuracy measured against real sales and published | Not stated | |
| Starting price | Free scan, then $5/mo or a $3 5-scan pack | Free 25 calls a day, no signup; $29 for a 30-day key (2,000 calls a day) |
deal.ly facts checked 2026-10-09 against deal.ly (SentientData Market Scan). “Not stated” means their public material does not say; it is not a no. Their features and prices can change.
What deal.ly does well
Finding underpriced listings fast. Twelve categories are rescanned every 30 minutes for auctions at least 45 percent under the live median and Buy It Now listings 35 percent under, each with a direct buy link. The free tier needs no signup, and an agent can pay per call in USDC without an account.
Where Underpriced AI goes further
deal.ly measures against the live Buy It Now median and says plainly that it never uses sold comps. For a buyer that is fine; for a seller it is the wrong number, because much of what is listed never sells at its asking price. Underpriced AI identifies the item from a photo, pulls the real eBay sold comps, and returns a calibrated estimate with a range and the net after fees. Then it drafts the eBay listing, crosslists, and tracks the profit.
Choose Underpriced AI if you
- Hold an item and need to know what it sells for
- Want sold comps you can open, not a live median
- Want the listing drafted and the profit tracked
- Crosslist to Poshmark, Mercari, Facebook, Depop or Etsy
deal.ly may fit if you
- Hunt eBay for auctions ending under market
- Want a free feed of flips in one of its twelve categories
- Run an agent that pays per call without an account
- Only need a quick margin estimate at the current median
Common questions
How is Underpriced AI different from deal.ly?
deal.ly is a buyer's tool: it scans live eBay US listings for ones priced well under the current Buy It Now median. Underpriced AI is a seller's tool: photograph the item you are holding, see what the same thing actually sold for on eBay, then draft the listing, crosslist it and track the profit.
What does deal.ly cost compared to Underpriced AI?
On deal.ly/mcp on 2026-10-09: 25 calls a day per IP address with no signup; after that 0.02 USDC a call through x402, or a 30-day key for 2,000 calls a day, which its Stripe checkout page priced at $29 that day. Underpriced AI: free first scan, then Starter $5 a month for 15 scans, Pro $15 for 75, Pro Plus $29 for 200, or a $3 pack of 5 scans.
Does deal.ly use sold prices?
No, and it says so: its footer reads that prices are measured against live eBay Buy It Now medians for the same search, not sold comps. Underpriced AI prices from completed sales and shows you each one.
Do both work inside Claude?
Yes. deal.ly's connector exposes four keyword tools: scan_deals, price_check, flip_margin and hot_list. Underpriced AI's exposes five, including a description price and sold-comps lookups that work without an account.
Can deal.ly price an item from a photo or list it?
Its pages describe keyword search and a deal feed, and say nothing about photo input, listing creation or apps, so those cells say not stated. Underpriced AI reads the item from the photo and drafts the eBay listing from the same scan.
See what it really sold for
Your first scan is free. No card.
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