CompSniper alternative: price the photo, not the keyword
CompSniper is a sold-comps API and dashboard: type a keyword, get up to 240 eBay sold listings with a median and a range. Underpriced AI starts from a photo, prices it from real eBay sold comps, and takes it through to a listing. Both run inside Claude. First scan free.
Underpriced AI vs CompSniper
| Feature | Underpriced AI | CompSniper |
|---|---|---|
| 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 | Up to 240 eBay sold listings per search, with links | |
| Sold data across eBay, Poshmark, Mercari | eBay (8 country sites), Poshmark, Mercari | |
| Live active listings | eBay and Mercari active listings | |
| Market saturation + category sell-through | Not stated | |
| Platform fee / take-home calculator | Not stated | |
| 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, quartiles, range, CSV export | |
| Estate & garage sale finder | Not stated | |
| Platforms | iOS, Android, Web, extension | Web dashboard, REST API; apps listed as coming soon |
| AI model | Claude Opus 5.5 | AI filter that drops accessories/ |
| Free first scan, no card | 100 free searches a month, no card | |
| Sold prices from more than one source, with automatic failover | eBay, Poshmark, Mercari searches; failover not stated | |
| Works inside ChatGPT, Claude and coding assistants (MCP) | Claude directory (sign-in required) + | |
| Scan packs, no subscription required | 5 scans for $3 | Monthly plans; packs not stated |
| 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 100 searches/mo; $9/mo for 2,000; $29/mo for 10,000 |
CompSniper facts checked 2026-10-09 against compsniper.com. “Not stated” means their public material does not say; it is not a no. Their features and prices can change.
What CompSniper does well
One keyword in, up to 240 completed eBay sales out, with a cleaned median, quartiles and a realistic range. It covers eight eBay country sites plus Poshmark and Mercari, exports CSV, and has a plain REST API developers build on. Its Claude connector reached the directory in August 2026, before ours.
Where Underpriced AI goes further
At a thrift store you usually do not know the keyword. The brand is half worn off and the model number is on the base. Underpriced AI identifies the item from the photo, pulls the real eBay sold comps for it, and returns a calibrated estimate with a range, three list prices with a two-week sell chance, and the net after fees. Then it drafts the eBay listing, crosslists through the extension, and tracks the profit.
Choose Underpriced AI if you
- Start from a photo, not a keyword
- Want the listing drafted and the profit tracked
- Crosslist to Poshmark, Mercari, Facebook, Depop or Etsy
- Ask Claude or ChatGPT what a find is worth
CompSniper may fit if you
- Know the exact product name or model
- Need sold data through a REST API
- Want eBay sales from eight countries, or Poshmark and Mercari, in bulk
- Export hundreds of sales to CSV
Common questions
How is Underpriced AI different from CompSniper?
CompSniper is a lookup: a keyword returns up to 240 completed eBay sales with a median and range, by dashboard, API or Claude. Underpriced AI starts from a photo, works out what the item is, prices it from real eBay sold comps, then drafts the eBay listing, crosslists through a browser extension and tracks the profit.
What does CompSniper cost compared to Underpriced AI?
On compsniper.com on 2026-10-09: Basic is free at 100 searches a month, no card; Starter $9 a month for 2,000; Growth $29 for 10,000, and higher tiers. Underpriced AI: free first scan, then Starter $5 a month for 15 scans, Pro $15 for 75 with automation, Pro Plus $29 for 200, or a $3 pack of 5 scans.
Do both work inside Claude?
Yes. CompSniper's directory listing, read 2026-10-09, requires sign-in and offers twelve keyword tools. Underpriced AI's has five: a description price and sold-comps lookups work a few calls a day without an account; photo scans and eBay drafts run on your account. Ours also works in ChatGPT and Claude Code.
Can CompSniper price an item from a photo?
Its site describes keyword search and says nothing about photo input, so the table marks it not stated. Underpriced AI reads brand, marks, size and condition from the photo, which matters when the label is worn.
Does either one list the item on eBay?
CompSniper's material covers sold data, an API and CSV export, nothing about listing. Underpriced AI drafts the eBay listing from the scan. From Claude the draft waits in the app until you review and publish it. Nothing is published from the chat.
See what it really sold for
Your first scan is free. No card.
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