The full crypto-card stack — Visa issuing, KYC, a double-entry ledger, webhooks and a ready front-end — as a service. You integrate over REST, brand it and sell cards to your users. Compliance, the banking integration and accounting are our side.
our first partner's path
Libermall, Tegro + external partner
the full card lifecycle
pay for operations only
One API covers the whole path — from cardholder KYC to card transactions. Your product is the top layer; everything beneath it already runs in production.
You set retail prices on top of our cost — margin on issuance, top-ups and FX is yours. An illustrative model (cost basis is fixed in the agreement):
100 cards / mo · issuance markup
1,000 cards / mo · + top-up fees
10,000 cards / mo · + FX spread & subscriptions
*example: $5–10 retail issuance over cost from $2.5; 1–3% top-up fees; retail pricing is your call.
A REST API with idempotency on every mutation, HMAC-signed webhooks with retries, and polling backstops for missed events. Sandbox access before any agreement.
POST /v1/cardholdersGET /v1/cardholders/{id}POST /v1/kyc/sessionsGET /v1/kyc/sessions/{id}GET /v1/productsPOST /v1/cardsGET /v1/cards/{id}POST /v1/cards/{id}/loadPOST /v1/cards/{id}/freezePOST /v1/cards/{id}/unfreezePOST /v1/cards/{id}/closePOST /v1/cards/{id}/set-pinGET /v1/cards/{id}/transactionsGET /v1/cards/{id}/secure-detailsGET /v1/balancePOST /v1/balance/topupsGET /v1/eventscard.issuedcard.status_changedcard.transactionkyc.updatedbalance.creditedfee.chargedOpenAPI spec, docs and examples: cardos.dev/docs · github.com/Libermall
sign up in the cardos.dev builder — bot and cards with no code, instantly
API key, sandbox, webhook secret
KYC → issue → load → webhooks
fund the balance, control cards
production issuance to your users
A partner agreement, an API key and a prepaid float — the balance your users' issues and loads draw from. Funded in USDT (TRC-20/TON), debited in real time, every operation visible in the ledger.
Cardholder KYC runs through our pipeline with the partner bank: you send holder data via API and receive status webhooks. No compliance stack needed on your side.
Virtual Visa and Mastercard, USD balances (internal 1USDT pegged 1:1). Apple Pay / Google Pay and 3D Secure products are separate SKUs (holder KYC); the full list with BIN, scheme and issuing country comes from GET /v1/products. Subscriptions, services and purchases worldwide.
Operation cost plus a partner margin, fixed in the agreement and volume-dependent. No setup fee. Retail prices for your users are yours to set.
Idempotency on every mutation (a retried request never double-executes), signed webhooks with retries, polling backstops, daily float spend caps and automatic bank reconciliation — the same stack serves our own brands.
Yes: a white-label version of our Telegram Mini App and web cabinet with your theme. Your brand and pricing — our interface.
First line — you (they are your customers); infrastructure incidents and the bank — us. SLA and the escalation matrix live in the agreement.
USDT over TRC-20 and TON — credited automatically, the balance is instantly visible in the ledger and via GET /v1/balance. Every spend operation is tied to a specific card and holder.
Yes — a single holder can have several cards for different tasks, within the card program's limits. Available products, including BIN, scheme and issuing country, are returned by GET /v1/products.
Yes: holder registration, issuing, top-ups and card management run through the API inside your product. KYC runs in the bank's hosted widget via a link from the API (POST /v1/kyc/sessions → hosted_url), the status arrives by webhook and the user returns to your product. Card details are shown via the engine's secure reveal, so the PAN never transits your backend and no PCI burden lands on you.
Yes. Operation costs go down as card count and volume grow, fixed in the agreement. Retail prices always remain yours.
Yes — as a pack on request under NDA: the BIN list with issuing countries, card limits, KYB requirements and B2B terms. Message @YouLibermallbot.
Fastest path — the CardOS builder (cardos.dev): a branded card bot with no code, live right away. For a deep API integration into your own product or custom volumes — message us on Telegram @YouLibermallbot.