Let's rewind
Tuesday night. Dortmund.
The true story of one PC · about four minutes
Dortmund, Tuesday, 23:41
This gaming PC is on eBay for €430.
Robots find underpriced PCs. AI takes them apart on paper and prices every part from real sales. You get a bid. Then it helps you sell the pieces.
Gaming PC Ryzen 5 5600X RTX 3070 32GB RAM 1TB NVMe
EUR 430.00
Dortmund · marco_kauft_neu (14) 100 %
7 parts, sold separately€0
eBay fees + 7 parcels−€0
Buy It Now, incl. shipping−€0
Profit€0
BUY
Max bid €450 · score 82
Tue 23:41 — Marco lists his PC. Tue 03:14 — your robot finds it.
Marco wants it gone by the weekend. You're asleep. Your robot isn't.
It swept 412 new listings overnight, tossed the overpriced, and put five on your desk. Marco's was one of them.
Auto SearchPrefilter
4125
SCANNED → WORTH A LOOK
Tue 03:15 — The read
It reads Marco's listing like a nerd at 3 a.m.
Title, description, all nine photos. Seven parts, model numbers, a confidence for each. The RAM speed is missing, so it drafts the question for Marco. You'll decide if it gets sent.
AI Part ExtractionProduct Questions · Business+
"Gaming PC Ryzen 5 5600X RTX 3070 32GB RAM 1TB NVMe top Zustand, Rechnung vorhanden"
RTX 307096 %
Ryzen 5 5600X98 %
2×16GB DDR474 %
B550 board91 %
1TB NVMe82 %
650W PSU61 %
Case88 %
To seller →"Hi Marco! RAM at 3200 or 3600? Original box for the GPU?"
Tue 03:16 — The price
Then it asks the only question that matters: what did people actually pay?
Forty-seven people bought an RTX 3070 in the last 90 days. Median €330. Each of the seven parts gets the same treatment, with its source shown.
Price ResearchAuction tracker
RTX 3070 · 47 sales · last 90 days
FRESH€330
€298
€362
asking €399
sold listingstracked auctionslive marketcategory default
Tue 03:17 — The math
The napkin math you'd do. Done properly.
Fees, seven parcels, your 30 % margin: break-even at €462. Your bankroll caps it at €450. Score 82. One note: mining-era GPU, check the fans.
Profit AnalysisRiskBankroll
resale€711
fees + parcels−€116
your 30 % margin−€145
break-even€462
bankroll cap€450
82
Seller 100 % positive
Mining-era GPU — check fans on arrival
Tue 07:02 — The tap
You wake up to one ping.
Verdict: buy, up to €450. You send the RAM question. Marco answers at 09:30: 3600, box included. You tap Buy at 09:41, coffee still warm.
NotificationsAuction remindersAI Negotiation · Enterprise
Ryzen hunter found one
now
Gaming PC 5600X / RTX 3070 · +€155 est.
Buy
Negotiate
Ask
Skip
DRAFT"Hi Marco, nice build! Would you take €395 incl. shipping? Can pay today." — you skip this one. €430 is already a deal.
Thu 14:20 — The box
Thursday. A box lands on your workbench.
The checklist is already waiting: unbox, pull parts, test. GPU under load: works, fans quiet. You scan the QR, and your phone walks you through nine photos.
Warehouse Tasks · Pro+Phone photo session
PC #04123 / 5
✓Unbox, photo of the whole PC
✓Pull GPU, CPU, RAM, NVMe
✓Test GPU under loadWORKS
Test RAM & NVMeNOW
Shoot listing photos
Shot 3 of 9
GPU · backplate & serial
Take photo
Thu 18:05 — The flip
Five listings go live before dinner.
The GPU and CPU go solo. Ninja suggests bundling the board with the RAM; you agree. The copy is written, German and English. You keep the case for your own build.
Auto Listings · Pro+Price coacheBay preview
SINGLE
RTX 3070 Eagle OC · tested
€330
balanced
SINGLE
Ryzen 5 5600X · boxed
€98
balanced
BUNDLE
B550 upgrade kit · board + 32GB
€135
quick sale
SINGLE
1TB NVMe · 94 % health
€46
max money
paid €440 · 5 listings · €711+€155
No gut feeling.
No black box.
No bidding wars at 2 a.m.
Just math you can check.
Two weeks later
Last part sold. +€155. Marco's happy too.
He got his PC gone by the weekend. You turned €440 into €595 without a single bidding war. Your robot didn't notice; it's been on PC #0413 since Tuesday.
Realized · Oct
€1,870
Locked
€1,240
On the table
€2,415
Ninja: #0413 looks good: i7-12700K / RTX 3080 at €620, parts worth €940. Max bid €640. Want the breakdown?Features
Eleven things your robot does.
Seven in every plan. Four unlock as you grow.
All plansAuto Search
Scans eBay around the clock for underpriced listings.
All plansAI Part Extraction
Breaks each listing into parts with model numbers and confidence.
All plansPrice Research
Medians from real sold listings and tracked auctions for every part.
All plansProfit Analysis
Margin, fees and shipping for every find, with the math shown.
All plansBankroll Management
Kelly-sized max bids so no single deal eats the month.
All plansRisk Management
Seller, condition and spec risks flagged before you commit.
All plansNotifications
Bell, email and auction reminders the moment it matters.
Pro+Auto Listing Generation
Ready-to-publish resale listings in German and English.
Pro+Warehouse Tasks
Arrival checklists and the phone photo session.
Business+Product Questions
Drafts the questions to sellers about missing specs.
EnterpriseAI Price Negotiation
Writes the haggle. You hit send.
Pricing
One good flip pays the month.
Monthly, cancel anytime. Upgrades apply now, downgrades next cycle. EUR excl. VAT.
Starter
€199/ month
Find and price. You do the rest.
1
robot
1
searches / day
20
Ninja / day
- Auto Search
- AI Part Extraction
- Price Research
- Profit Analysis
- Bankroll & Risk
- Notifications
RECOMMENDED
Pro
€399/ month
Find, price, unbox and sell.
1
robot
3
searches / day
100
Ninja / day
- Everything in Starter
- Auto Listing Generation
- Warehouse Tasks & phone photos
Business
€499/ month
Two robots, and it asks the questions.
2
robots
6
searches / day
200
Ninja / day
- Everything in Pro
- Product Questions
Enterprise
€699/ month
Three robots, and it haggles.
3
robots
6
searches / day
1,000
Ninja / day
- Everything in Business
- AI Price Negotiation
FAQ
Things people ask before they ask for an invite.
Anything else: contact@cedricfjacob.com. We read every message.
A tool for people who flip used PCs on eBay Germany. Robots find underpriced listings, AI splits them into parts, every part is priced from real sales, and you get a max bid. After you buy, it plans the resale: listings, checklist, photos.
A saved search with a schedule. You give it a term and a category (PC bundles, components, consoles…); it runs up to six times a day and reports what's worth a look.
A waterfall: our database of finished eBay sales and tracked auctions first, then live listings, then a category default. Every number shows its source and freshness.
Resale value of all parts, minus eBay fees and parcels, minus your margin floor = break-even. Then Kelly-style position sizing caps it against your bankroll so one bad PC never eats the month.
No. It recommends, drafts and reminds. You click Buy on eBay, you hit send on messages. Auction reminders arrive five minutes before the end.
We use eBay's official OAuth 2.0. We never see your password, request the minimum permissions, and you can revoke access from eBay any time.
We onboard a few people at a time so every robot gets attention and every pricing miss gets fixed. Got a code? Enter it. Don't? Request one and tell us what you flip.
PC builds today: complete PCs, components and peripherals. Consoles and more electronics are next.
Yes, any time from Settings. Upgrades apply immediately, downgrades at the next billing cycle.
English, German, French and Spanish. Money shows in EUR, formatted for your language.
About
Two people. One flips PCs, one writes code.
A small family shop. No VC, no growth-at-all-costs roadmap. Every recommendation gets stress-tested on real deals before it ships.
Cedric Jacob
Founder & Engineer
Writes the code. Years of serverless on AWS. Believes the math behind every recommendation should be inspectable.
Email Cedric →Piet Jacob
Operations & Market Eyes
Cedric's nephew. Flips parts for a living and is the first user of every feature. If the engine is wrong, he notices first.
Got a code? Come in. Don't? Ask for one.
We let people in a few at a time so every robot gets attention. Tell us what you flip.