PaychainX is the orchestration and post-quantum proof layer we built: an intelligent API router with tokenization, settlement, and a tamper-evident audit trail. It connects to CyberSource for card processing, is in pilot with Propelr, and is partnered with Zero Hash for stablecoin settlement. Every payment is sealed with a post-quantum-ready cryptographic proof, the differentiator no legacy processor offers.
Figures reflect the PaychainX reference/sandbox environment, shown for demonstration. No production credentials or live cardholder data are exposed on this site.
Most gateways move transactions. PaychainX governs, abstracts, orchestrates, and proves them.
PaychainX runs the full transaction lifecycle in production today. Post-quantum is the newest layer on top of an already enterprise-grade platform.

One API. The router selects the right processor and rail per transaction, with retriable payment attempts and processor failover. Orchestration, not just a passthrough.

Route the same payment intent across the card rail (live via CyberSource) and the stablecoin rails (settled by Zero Hash, B2C nearing production, B2B in design), a governed layer bridging traditional and digital settlement.

Card data is replaced with a token at the edge (card_token). The PAN never touches merchant systems, shrinking PCI scope.

One gateway for online (channel: api) and card-present terminals (PAX A920 Pro, with terminal and device identity), with unified reporting across both.

HMAC-signed events with automatic retry and full delivery tracking (attempts, HTTP status, delivered or failed), so merchants never silently miss a payment update.

Daily transaction aggregates per processor, settlement lifecycle, and an admin search API over the full payment history with pagination.
A merchant integrates once. Behind that single API, a router normalizes every payment, selects a rail, runs it through a uniform adapter, and seals the result in a tamper-evident proof. Here is exactly how it works in the gateway today.
PaychainX is the orchestration and post-quantum layer. CyberSource is the connected card processor, Propelr is our pilot partner, and Zero Hash is our stablecoin settlement partner. Every rail implements the same adapter contract, and we label precisely what is live versus on the roadmap.
Add a rail by implementing one interface. The router never changes.
One function resolves a normalized payment to a rail.
Payment sources the router accepts:
Networks fail and clients retry. The gateway guarantees a retry never creates a second charge. Every POST /v1/payments/* requires an Idempotency-Key, and the body is fingerprinted so reuse is detected exactly.
Merchant self-onboarding with identity and business verification, and a merchant dashboard for activity, settlements, and reporting. UI and UX are roughly 95 percent complete and in the production phase.
Every PaychainX payment already emits a SHA-256 proof (proof_id: pq_…), an immutable, independently verifiable record of what happened. The post-quantum layer upgrades that proof's signature to a hybrid classical and ML-DSA scheme, so audit trails stay verifiable even against a quantum adversary. No card processor on the market offers this today.
Try the live in-browser signing demo →PaychainX is processor and rail agnostic by design, so a single integration can serve enterprises, banks, and governments across regions and settlement networks. The production gateway already runs behind a global edge network with TLS at every hop.
Requests are served over HTTPS behind a worldwide edge, keeping routing overhead low wherever the merchant or terminal sits.
The canonical request carries currency on every transaction, the foundation for cross-border acceptance and multi-currency orchestration.
Deploy as a license, a white-label gateway, or internal routing and settlement infrastructure for regulated, high-assurance markets.
Regions shown represent target deployment reach. PaychainX is a registered MSP/ISO of Elavon, Visa, and Mastercard. Cross-border, multi-currency, and additional settlement rails are a mix of live and roadmap capabilities, labeled as such across the site.
We separate what is live today from what is on the roadmap, with no overstated production claims.
Walk the live transaction demo, inspect the audit proofs, and see the post-quantum signing in your own browser.