📉
Final-value fees stack up
On a $500 sale, modeled eBay-style fees can run about $66.55. That’s money that never hits your drawer.
CDX is a timed auction marketplace for coins and bullion, built for SpotPro dealers, with SpotPro Software. SpotPro dealers list and sell free — always. Collectors bid free. No buyer premium. Buyers pay you — not a giant platform holding your money.
They were built for sneakers, comics, kitchen gadgets — or for a live stream that takes a cut of every “sold!”
On a $500 sale, modeled eBay-style fees can run about $66.55. That’s money that never hits your drawer.
Other sites charge a percentage to promote listings. On CDX, strong value can rank in Great deals without a paid boost.
Generic marketplaces don’t show live metal value, “below metal value,” or guide chips. Dealers and buyers do that math in their heads — or guess wrong.
Show platforms often tax the night. CDX is timed auctions with an optional live floor / TV view — without a show commission product.
Major houses often add 10–25% on top of the hammer for buyers. CDX: you bid what you pay for the lot (plus shipping you agree with the seller).
Double-entry kills shops. CDX lists from SpotPro Software and can hold stock after a serious bid so the counter doesn’t sell it twice.
Illustrative models for education — your categories and promos may differ. Card fees on your processor still apply when buyers pay you.
Open live fee calculator Seller pricing plans vs Amazon coin fees
Free accounts. Real value signals before you open the lot. Pay the dealer when you win.
Lots scored great / fair / rich vs metal value, wholesale guides, and retail averages — not seller marketing copy.
Find bullion priced under raw metal when it happens. Rare on big marketplaces; easy here.
Set the most you’ll pay. We only bid enough to keep you ahead. Optional: max as a % of metal value.
Mark dates you own. See missing dates. Chase live lots that fill holes in Morgan, Lincoln, ASE, and more.
Private best offers when the seller allows it. Accept / counter / decline — no public bidding theater.
What you bid is what you pay for the lot. Shipping and payment methods are between you and the dealer.
SpotPro members always list and sell at $0 platform fees. Inventory stays the source of truth.
Inventory → auction, or cdxauction.com/sell.php with photos, metal tools, and description writer. CSV import from eBay exports.
Card, PayPal, Zelle, wire — from Company Profile. CDX is not holding coin proceeds in a marketplace wallet.
Boost visibility without a “promoted listings” cut of the sale. Second-chance offers on unsold lots. Watchers + views on every lot.
Import CSV, bulk reprice to metal value, end-list checklist, dual-list flags, fees-avoided meter. Move from eBay guide.
Plain English. Same features live on the site today.
Automatic value scoring on live lots. Filter to great/fair. Free prominence for strong value.
Lots about to close, heat sorting, anti-snipe extensions so last-second snipes don’t steal the sale.
Full-focus next lot for a shop TV or host — timed auctions, not live-show commission night.
Current-year ASE, proof sets, sealed product — metal tools and $0 sell vs Amazon-style referral cuts.
Year/mint maps. Mark owned. Chase list. Fill holes without keyword homework.
Private mail about lots, pickup, and shipping — separate from system alerts.
In-app bell + email: outbid, ending soon, wins, offers, saved searches (including below metal value).
Product video on the lot page and Prime lane — show the coin spinning, not a stock thumbnail only.
Stored wholesale/guide dollars when the seller linked pricing — not a live API tax on every page view.
WYSIWYG on sell + store about/policies. Generate a draft from the SpotPro description engine, then edit.
Public store page, feedback, about, policies, live / fixed / sold tabs.
Email verify, progressive friction, optional phone/ID for sellers, payment risk signals — without locking out good buyers.
Feature comparison vs common alternatives. Fees are illustrative models.
| What you care about | CDX Auction | eBay-style | Live-show apps | Major houses |
|---|---|---|---|---|
| Seller platform fee | $0 for SpotPro sellers · public plans capped | ~13% + fees model | ~12% all-in model | Seller schedule + buyer premium world |
| Buyer premium | None (0%) | — | Built into show economics | Often 10–25% |
| Metal value on cards | Yes + great/fair scores | No | Host judgment | Catalog essay, not live metal |
| Max bid as % of metal | Yes | No | No | No |
| Who gets paid | Buyer pays the dealer | Managed payments | Platform payout | House settles |
| Inventory hold in SpotPro Software | After first bid | Separate listing system | Show inventory | Consignment warehouse |
| Feature lots free | Yes | Paid promote % of sale | Boost show time | Catalog placement |
| Set checklist tools | Yes | Search homework | Hope it shows up | Want list offline |
Whether you buy or sell, the loop is simple.
Confirm your email. Buyers can bid and make offers. Sellers use the same email as SpotPro to unlock listing.
Collectors set a max or Buy Now. Dealers list from SpotPro Software or the sell form with photos, metal tools, and rich descriptions.
When you win, you pay the selling shop (card, PayPal, Zelle, wire). They ship with tracking or offer local pickup.
“Coin-native auctions shouldn’t feel like selling toaster ovens on a general marketplace — or yelling over shipping mid-stream on a show app.”
— Why we built CDX for SpotPro dealers
Browse live lots free. Register free to bid. SpotPro dealers always list and sell at $0 platform fees. Questions? Read the docs or email support.
Competitor fees are illustrative models for education, not a guarantee of any third party’s current rates. SpotPro sellers: platform list and sell fees are always $0. Public (non-SpotPro) seller rates are on pricing. Legal: Terms · Privacy.