CardCycle is a value exchange network, not just a listings page
Three groups meet on one network — the people who hold cards, the merchants who issue them, and the partners who want to plug into both. Underneath sits a single stack: one wallet, one trading engine, one payment engine, and one verification and risk layer.
The network at a glance
Consumers
Buy discounted cards from other people, and list the ones they won't use at their own price.
Browse cardsMerchants
Retailers and shops list their own inventory, move breakage into cash, and reach buyers already shopping their brand.
Apply to sellAPI partners
Wallets, cashback apps and fintechs plug into CardCycle pricing and settlement. A target, not a live product yet.
Talk to us- 01
Trading engine
LiveEvery consumer, merchant and partner order lands here first: live pricing per retailer and inventory locked so a card can only sell once.
See the market feed - 02
CardCycle Wallet*
In progressOne balance per account. Sale proceeds and buyer credit settle here before anything moves to a bank. *Spending the balance in-app is still being built.
Open your wallet - 03
Payment engine
LiveCard charges in, seller deposits out, with fees and processing cost recorded on every single transaction.
See payouts - 04
Verification engine
LiveIdentity checks, card balance verification, retailer status checks and automated screening — all run before money moves either way.
Get verified - 05
CardCycle API
GoalThe whole stack exposed as one connection for partners: pricing, trading, settlement and verification. Documented below, issued by request.
Request access
Partner API layer
One connection gives a partner read access to CardCycle pricing and write access to the trading and payment engines. Requests are authenticated with a partner key issued per account; every call is settled and recorded in the same ledger our own marketplace uses.
| Endpoint | Layer | What it does |
|---|---|---|
| GET /v1/pricing/:retailer | Trading | Live discount, lowest ask and available balance per retailer. |
| GET /v1/listings | Trading | Searchable inventory with face value, price and quantity. |
| POST /v1/listings | Trading | Submit partner inventory for pricing and review. |
| POST /v1/orders | Payment | Buy a card on behalf of a partner customer, with inventory locked once. |
| GET /v1/settlements | Payment | Fees, processing cost and payable per partner transaction. |
| POST /v1/payouts | Payment | Release standard or instant payouts to a verified bank account. |
| POST /v1/verifications | Verification | Run identity, balance and retailer status checks before a trade. |
Authentication
Per-partner key sent as a bearer token over HTTPS, scoped to pricing, trading or settlement. Keys are rotatable and rate limited per account.
Settlement
Partner-originated trades post buyer fee, seller fee, processing cost and payable to the same double-entry ledger as marketplace orders.
Risk checks
Identity, balance verification and retailer status run before any partner trade is accepted or any payout is released.
Preview access: endpoints are documented and being wired to the live engines. Partner keys are issued by request while we onboard the first integrations.
Card network partner portals
Card networks run their own partner sign-in and developer dashboards. These are the official portals we apply through. CardCycle is seeking these relationships — we are not affiliated with, sponsored by, or endorsed by any card network today.
Visa
Visa Partner for program applications, Visa Developer for API keys and sandbox access.
Mastercard
Mastercard Developers for API projects and keys, Engage and Start Path for partnership programs.
American Express
Amex Developer Portal for API access, plus merchant and partnership channels.
The build order
CardCycle grows in phases — each one funded by the last, so the business stays asset-light and earns on transactions, not on holding cards.
- Phase 1MarketplaceLiveSeller → CardCycle → Buyer. Verified listings, locked inventory, instant code delivery and bank payouts.
- Phase 2Verification + fraud engineLiveIdentity, balance and retailer checks before money moves. Trust is the competitive advantage.
- Phase 3Instant CashGoalCardCycle buys cards directly — only high-demand, highly verified cards with predictable resale margins. Never a capital-heavy inventory pile.
- Phase 4CardCycle WalletIn progressProceeds, credit and refunds in one spendable balance, keeping users inside the ecosystem. A balance preview exists today.
- Phase 5Merchant NetworkIn progressRetailers list their own inventory, with promotions and loyalty on top.
- Phase 6CardCycle APIGoalThe whole stack — pricing, trading, settlement, verification — as one connection other companies plug into.