Auctions, Wholesale, and Inventoryfor the Coin & Collectibles Trade
Flow Auctions makes a marketplace where collectors bid on certified coins, a wholesale marketplace for dealers, and inventory software for dealers and auction houses.
Flow Auctions: Bid on certified coins from trusted auction houses.
Bid in live and timed auctions of PCGS and NGC graded coins, or buy coins at a fixed price.
1903 $20
PCGS 66
$13,500
2026-W Enhanced Gold Eagle 1 oz AR Kenneth Bressett America 250
NGC 70
$11,500
2026 2 Coin Best of the Mint 1907 Saint Gaudens $20 Gold 1 oz and Silver 1 oz Medal Set AR Mike Castle
NGC 70$11,500
1988 Proof Gold Eagle 1.85 oz Mike Castle
NGC 70$9,500
Open for bids now on the marketplace.
Flow Dealers: Buy and sell wholesale with other dealers.
A dealer-to-dealer marketplace with wholesale prices on every listing.
Verified dealers only
Every buyer and seller is a verified coin shop or auction house.
Offers and messages
Make an offer or send a message on any listing.
Secure payment and shipping
Payments are secure. Shipping labels are insured.
CoinManagerPro: Manage your inventory and list it where it sells.
Inventory software for coin dealers and auction houses, with AI that does the cataloging.
- 1
Scan
Scan PCGS and NGC certs in bulk to add coins to your inventory.
- 2
Catalog
AI catalogs each coin from its cert or a photo of the coin.
- 3
List
Send each coin to the channels that sell it, or export a catalog file.
- Your Flow store
- Flow Dealers
- Google Shopping
- HiBid catalog
- LiveAuctioneers catalog
