Crypto Ramp
Demo
Explore simulated fiat-to-crypto payments, partner routing, and cross-chain bridging. All transactions are simulated. No real money or cryptocurrency is transferred. Please use sample details only.
See It In Action
Browse through key screens from the Crypto Ramp Demo dashboard.
Payment Partners
OwlPay, Yellow Card, Brale, MoneyGram
Supported Chains
Ethereum, Hedera, Stellar, and more
Walkthrough Steps
End-to-end guided demo flow
Multi Tenant Isolation
Every query scoped by tenant ID
Key Features
What makes this demo stand out — built to showcase real-world capabilities.
Capability-Based Routing
The connector layer normalises four different auth models, state machines, and webhook formats into one predictable pipeline. Partners are selected automatically by region, currency, chain, and fee.
Multi-Leg Orchestration
On-ramp legs chain automatically with Hedera bridge legs. Each leg has its own state machine and can be retried independently — failure on leg 2 after leg 1 succeeds is recoverable without losing funds.
Next.js Dashboard
Full-featured dashboard with quote comparison, execution tracking, bridge visualisation, transaction audit trail, and partner management — all in real time.
Double-Entry Ledger
Every money movement creates debit and credit entries. BigInt amounts in smallest units prevent the classic off-by-100x bug. Reconciliation is trivial by design.
Built With
How It's Built
A simplified view of the system layers powering this demo.
Dashboard
Next.js + React + Tailwind CSS
API Layer
NestJS + Fastify with Swagger docs
Connector
Adapter pattern, route planner, execution engine
Data Layer
Prisma + PostgreSQL + Redis + BullMQ
Blockchain
Hedera SDK, Ethereum, Stellar adapters
Launch the Live Demo
Explore the interactive demo in one click. No account or password is needed. All transactions are simulated; please use sample details only.
The Full Story
Dive deeper into the strategy, challenges, and outcomes behind this build.
Featured Case Study
Fiat-to-Crypto Connector Platform with Hedera Bridge
How we built a payment partner connector architecture that integrates four fiat-to-crypto providers behind a single API — with cross-chain bridging to the Hedera network.
Read Full Case StudyDeep Dives & Lessons Learned
Technical article written during and after this build.
Building a Multi-Partner Payment Connector with Nest.js
How we used the Strategy + Adapter pattern to integrate four payment partners with completely different APIs behind a single interface — and made it easy to add a fifth.
Read ArticleImpressed by the demo?
Let's Build an AI Agent Like This For You
Multi-partner fiat-crypto connectors, blockchain integration, and production-grade payment orchestration — built properly the first time.