Buyer marketplace · free to register
CX CDX Auction

Feature comparison

How CDX compares to other auction places

Many marketplaces take a large cut of the sold price. Live-show platforms often tax the broadcast. Major houses often add a buyer premium. CDX is built for coins and bullion: metal-value tools, great-deal scoring, inventory held after a serious bid, SpotPro $0 sell fee (always), and clear public rates. No buyer premium. Glossary of terms →

List (SpotPro $0) Seller rates Apply to sell Fee calculator Live floor view

eBay on $500
−$66.55
Whatnot on $500
−$59.50
CDX SpotPro
$0
CDX Public Starter
5.9% cap $39
Buyer premium
0%
Capability CDX eBay Whatnot Major house
Seller commission / final-value fee SpotPro $0 always · Public from 5.9% cap $39 ~13.25% + $0.30 ~11.9% all-in model Seller schedule + buyer premium
Buyer premium on sold price None (0%) N/A (fee on seller) Built into show economics Often 10–25% buyer premium
Metal value / guide / fair-price badges Built in — great deals + price chips No metal-value stack for coins Host judgment mid-show Catalog essay, not live metal tools
Max bid as % of metal value Yes (lot + live floor) No No No
Inventory hold after first bid Hold after first bid (SpotPro POS) Separate listing system Show inventory Consignment warehouse
Description writer + bullion subtypes SpotPro listing engine DIY HTML Talking on stream Staff catalogers
Timed live floor / TV view Live floor + host notes · $0 show fee Live is bolted on Core product (fee night) Room auction
Multi-lot silent end block Yes (estate / batch) Manual One item at a time Session lots
Auto-accept offers vs fair price Yes (% of fair reference) Best-offer rules only N/A Staff
Set checklist + missing dates Yes Search homework Hope it shows up Want list offline
You get paid (buyer pays dealer) Buyer pays dealer directly Managed payments Platform payout House settles
Staff headcount required Near-zero (self-serve + automation) Large corporate ops Show + support Catalog staff
Smart relist to fair / metal value Metal/guide-aware Relist fee culture Another show Next sale
QR local pickup Yes Local pickup clunky Ship culture Ship/pickup formal
Platform fee ≠ holding coin money Separate platform fee ledger Takes cut of sale Takes cut of sale House money flow
Feature lots free (no paid boost %) Feature rail $0 · cap 12/seller Promoted Listings % of sale Boost show time Catalog placement
Watchers + views on lot Live counts Hard to see until end Chat signals Absentee book
Second-chance offers Underbidder 3-day Buy Now · $0 sell Second chance + fee still applies N/A Staff call
Sell-through + fees avoided scoreboard On seller tools page Fee invoice PDF Payout statement Consignor report
Amazon Collectible Coins referral $0 platform sell · metal tools on modern mint N/A (different stack) N/A N/A — Amazon ~15% + FBA model
Modern mint / current-year rail Modern mint page + filter Generic new listings Show of the night Catalog deadlines

What’s already live

Great deals + price guide chips
great / fair / rich before you bid
Max bid as % of metal value
plus live floor / host view
Timed auctions (not live-show tax)
end quietly without a show fee
eBay CSV + estate batch import
move inventory in bulk
Smart relist to fair / metal value
without a “relist fee” culture
Auto-accept offers
at a % of fair reference price
Missing-date set tools
complete collections on purpose
QR local pickup + shipping wallet
ops without extra staff
Platform fee ≠ coin custody
clear public rates · SpotPro $0

Competitor fees are illustrative models for education. SpotPro sellers: platform sell fee is always $0. Independent sellers: apply for access. No buyer premium on purpose. Glossary