Seven categories
Cars, electronics, furniture, appliances, tools, collectibles, and other. Each category has its own attribute set — cars show VIN/mileage/year/transmission; phones show IMEI/storage/condition.
Local classifieds.
USDC escrow.
List items for sale, browse local listings, make offers, or bid in auctions. Funds escrow at purchase, released after the buyer inspects in person. No PayPal disputes, no chargebacks.
What you get
5 things that distinguish Primeborg Marketplace
Three pricing modes
Fixed price (one-click buy). Negotiable (buyer makes an offer; seller accepts, rejects, or counters). Auction (bid against other buyers; reserve price, buy-now price, soft-close anti-snipe extension).
USDC escrow with inspection window
Buyer pays into the escrow contract. Seller hands over the item in person. Buyer has an inspection window to confirm or dispute. Escrow releases to the seller on confirmation or window expiry; refunds on a successful dispute.
Location-based search
Listings show city, country, and a coarse map location. Search by bounding box (the map view) or by distance from your location. Photos required for every listing.
No chargebacks, no fake disputes
Once you confirm receipt, the funds are gone — there is no credit-card chargeback to reverse the sale. This protects sellers from the PayPal/eBay scam of "buyer claims they never got the item." But it means buyers must inspect before confirming.
Frequently asked
Honest answers, not marketing
How is this different from Craigslist or Facebook Marketplace?
Craigslist and Facebook Marketplace let you list items but have no payment or escrow — buyers and sellers meet, exchange cash, and trust each other. Primeborg adds the USDC escrow contract with an inspection window. If the seller doesn't show, or shows up with the wrong item, you can open a dispute and the mediator council reviews evidence.
How does the auction product work?
Auctions have a start time, end time, starting price, optional reserve price, and optional buy-now price. Bidders place bids against each other; the highest bid at end time wins. Anti-snipe protection: if a bid lands in the final few minutes, the auction extends by a soft-close window (typically 2-5 minutes). Maximum extensions are capped.
Do I need to meet in person?
For most listings, yes — sellers offer in-person hand-over by default. Some categories support shipping (collectibles, small electronics) at the seller's option; the listing tells you which delivery methods the seller accepts. The escrow doesn't release until you confirm receipt regardless of how it gets to you.
What if the item is broken or not as described?
Open a dispute within the inspection window. The mediator council reviews evidence (photos vs. listing language, condition descriptions, original ad copy). Outcomes: full refund to buyer, partial refund, or release to seller depending on whose claim has the stronger evidence.
What's the fee?
A small platform fee deducted from the escrow at release (typically 2-3% on top of gas). Lower than eBay (10-13% final value fee) or StockX (~12%). Listing is free; you only pay when a sale completes.
Can I list a car or other high-value item?
Yes — cars are a supported category. For high-value items, both parties should pay extra attention to: (a) verify the seller's identity and ownership documents in person, (b) inspect carefully before confirming receipt (once you confirm, you cannot dispute), (c) use the dispute system promptly if something is off. The escrow protects you only until you confirm receipt.