CX CDX Auction Docs
Payments

Payments overview

Auction wins (including accepted offers) settle buyer → selling shop. CDX does not hold the money for the coin.

Who charges whom

PartyRole
BuyerPays winning bid or accepted offer (+ any agreed shipping) to the seller
SellerReceives funds via the payment methods they enabled
CDX$0 list/sell for SpotPro software shops; public plans for independent shops; does not hold coin funds

Supported methods (set by the shop)

What shops can enable

  • Card — secure checkout on Pay seller (shop’s merchant account)
  • PayPal — shop business email / PayPal flow
  • Zelle / bank transfer / check / cash / pickup — offline; buyer reports, shop confirms

SpotPro software shops: enable methods in shop payment settings. Independent shops: set “How buyers pay you” under CDX Account.

Report payment list

Report payment = that shop’s methods only. The offline “I paid with…” list is built from methods the shop actually offers — not a fixed site-wide list. If a method is missing, the shop needs to enable it in shop payment settings.

Seller protection

  • Verified email required before bid, offer, or pay
  • Phone + shipping address required before payment; US ZIP checked against postal data
  • SMS phone verify — pays ≥ $200, first card ≥ $100, or high-value ID path
  • High-value ID attestation — legal name + ID type + last 4 for orders ≥ $750 (and some elevated-risk lower amounts)
  • Card — billing ZIP match, AVS, velocity limits; high-risk card pays go on security hold until the seller releases
  • Local pickup — buyer ZIP within seller-configured miles of store ZIP (default 75)
  • Device fingerprint — flags devices linked to multiple buyer accounts
  • Seller Payments tab — risk notes, holds, release control

What counts as high-risk (card hold)

Hard rules (any one can hold)

  • Transaction risk score ≥ 50
  • First card payment on the account ≥ $100
  • Billing ZIP ≠ shipping ZIP
  • Account < 24h old and amount ≥ $150
  • Phone not SMS-verified and amount ≥ $200
  • Amount ≥ $1,000 within the first 3 card payments
  • Device linked to multiple buyer accounts
  • Buyer historical risk score ≥ 50

Sellers release holds from their CDX payments tools. Do not ship until released/paid.

Buyer steps after a win

  1. Open the win email, notification bell, Wins, or Payments
  2. Complete phone + shipping address in Settings if prompted
  3. Click Pay seller
  4. Complete card checkout (billing ZIP) or offline transfer and report confirmation (from that seller’s methods)

If you owe one dealer for several lots, use Pay all to this dealer on Payments.

Fees

What CDX charges

  • Auction fees: $0 list / $0 sell for SpotPro software shops; public plans for independent shops — see cdxauction.com/pricing.php
  • Buyer registration: free

Card and PayPal fees

Card / PayPal / bank fees are between the shop (or buyer) and their provider.