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Features

Everything a working flipper needs, none of the busywork.

CritFlip is the layer between eBay's firehose and your buy decisions. Live listings, smart filtering, deal scoring, and integrations that keep your existing workflow intact.

As an eBay Partner, we may be compensated if you make a purchase through our products.

HUD

Your workspace, your keybinds.

A single screen showing every listing detail you need to decide in under a second.

Drag-and-drop columns, sortable everything, condition icons, seller history, shipping costs to your ZIP. Custom hotkeys for the actions you do hundreds of times a day — open, save, blocklist, buy.

  • Drag-drop column layout, saved per device
  • Side panel preview with full description + photos + seller score
  • Rebindable hotkeys for every action
  • Density modes — comfortable, compact, or speedrun

HUD — live listings

Vintage Nike SB 'Heineken' size 10.5
$140+$220
Lego 10240 UCS Red Five X-Wing sealed
$640+$180
Pokémon Booster Box Hidden Fates
$420+$95
iPhone 14 Pro 256GB unlocked
$520+$60
LIVE

Loot Drop Pipeline.

New listings hit your screen the moment eBay publishes them — usually within a second or two.

CritFlip pipes the official eBay listing feed straight into your saved searches. Sub-second drop alerts via in-app, browser push, Telegram, or ntfy.

  • Sub-second median latency on new listings
  • In-app, browser push, Telegram, ntfy, and Pushbullet delivery
  • Per-search alert routing so urgent searches page you differently
  • Silent hours so you don't get pinged at 3am

Drop feed

0.4s ago↳Legendary drop: Sealed Switch OLED, $245
1.1s ago↳Epic drop: Sony WH-1000XM5 (new), $210
2.7s ago↳Rare drop: Air Jordan 4 Bred, size 11
4.2s ago↳Uncommon drop: Kindle Paperwhite, $42
SMART

Macros & Aggro Filters.

Build precise saved searches once. Block the sellers you've already been burned by — forever.

A real query builder, not eBay's basic dropdowns. Combine categories, condition, price floor/ceiling, ZIP distance, keyword excludes, and a personal blocklist of sellers you don't deal with. Save it, share it across the team, run it forever.

  • Multi-field filter builder with boolean logic
  • Per-search seller blocklist + global blocklist
  • Shipping cost calculated to your ZIP before scoring
  • Per-search test mode — preview before going live

Macro editor

// LEGO sealed under $200 only
category = LEGO AND condition = "new"
AND price < 200
AND NOT seller IN @blocklist
14 matches todaylive
AI

Flip Score.

Each listing gets a score telling you how likely it is to flip, based on your own margin floor and the live market.

Sync your inventory and cost basis from Google Sheets or CSV. Define what a profitable flip looks like for you. CritFlip scores every listing against your rules and 30-day comparable sold prices — green is buy, red is pass, you decide.

  • Sync cost basis from Google Sheets or CSV
  • Per-category margin floors
  • 30-day comparable sold-price lookup baked in
  • Bring your own AI API key (OpenAI, Anthropic, Google) for narrative scoring

Flip score

Listing score

92

Legendary
Sell-through 30d82%
Median sold price$248
Est. fees + ship−$31
Your margin floor$60
LINKS

Integrations that respect your stack.

Connect the tools you already use. Nothing exotic, nothing locked in.

Push alerts to Telegram or ntfy. Sync your cost-basis sheet from Google Sheets. Export filtered listings to CSV. Connect your eBay account through eBay's own OAuth — we never see your password.

  • eBay OAuth (we never store your password)
  • Google Sheets sync (inventory + cost basis)
  • Telegram, ntfy, Pushbullet for mobile alerts
  • CSV import / export of listings and history

Connected

eBay OAuth
Google Sheets
Telegram
ntfy
Pushbullet
CSV import / export

FAQ

Common questions.

How is this different from eBay's own search?+
eBay's search is built for buyers, not for flippers. CritFlip watches the official eBay feed continuously, applies your saved filters and blocklists in real time, scores each listing against your margin floor, and surfaces only the ones worth your attention. You spend seconds, not hours.
Can I connect multiple eBay accounts?+
Yes. Connect any number of eBay accounts to a single CritFlip subscription. Listings and history are scoped per account so you can keep flips separated for accounting.
How do you avoid eBay API throttling?+
We use eBay's official partner-grade feed plus aggressive per-listing caching, so we make far fewer API calls per visible listing than naive polling would. As we onboard more customers, our share of eBay's daily call budget rises with us — we don't cut corners on the API License Agreement.
How fast is onboarding?+
About 10 minutes. Sign up, connect your eBay account via OAuth, drop in your first saved search, and you're live. Sample configurations get you to your first “why didn't I have this years ago” moment within the trial.
Do you store my eBay credentials?+
No. We never see your eBay password. We hold an OAuth access token eBay issues to us on your behalf, stored encrypted at rest. You can revoke it from your eBay account settings at any time. See the Privacy Policy for the full handling story.

Ready to stop scrolling and start flipping?

Book a 20-minute walkthrough. $50/mo after a 30-day trial.

Schedule a Demo