Fiat-to-L2 Ramp Development

overview

CORE INFRASTRUCTURE

Smart Contract Development

Secure, audited smart contracts built for production by blockchain-native engineers.

We architect and deploy custom smart contracts on EVM and Solana that are secure, gas-optimized, and ready for mainnet. Our process delivers production-ready code in 2-4 weeks.

Security-First Development: Built with OpenZeppelin standards, comprehensive unit tests, and formal verification for critical logic.
Protocol Specialization: ERC-20/721/1155, custom AMMs, staking pools, multi-sig wallets, and cross-chain bridges.
Full Audit Support: We prepare contracts for third-party audits and provide a detailed security report.

We guarantee 99.9% uptime SLA for deployed contracts and offer ongoing maintenance to handle upgrades and protocol changes.

key-features-cards

BUILT FOR SCALE

Core Capabilities of Our Fiat-to-L2 Ramp

We deliver production-ready, compliant on-ramps that convert users from fiat to L2 assets in minutes, not days. Our modular architecture integrates directly with your dApp's UX, handling KYC, payments, and bridging so you can focus on your core product.

Regulatory-First Architecture

Pre-integrated KYC/AML flows with certified providers (Sumsub, Onfido) and support for regional compliance (Travel Rule, GDPR). We ensure your ramp operates within legal frameworks from day one.

50+

Supported Jurisdictions

SOC 2 Type II

Compliance Standard

Multi-Chain L2 Settlement

Direct fiat settlement to Arbitrum, Optimism, Base, zkSync, and Starknet. Our smart routing selects the optimal bridge for cost and speed, abstracting complexity from the end-user.

< 5 min

Avg. Settlement Time

10+

Supported L2s

Unified Payment Stack

A single API for card processing (Stripe), bank transfers (Plaid), and local payment methods (SEPA, PIX, UPI). We manage payment failures, chargebacks, and fraud detection.

99.5%

Payment Success Rate

150+

Payment Methods

Gasless & Sponsored Transactions

Users never need native gas tokens. We sponsor initial gas for wallet creation and token swaps, creating a truly seamless Web2-to-Web3 experience that boosts conversion.

User Gas Required

40%+

Conversion Lift

Enterprise-Grade Security

Non-custodial design with MPC wallets, real-time threat monitoring, and smart contract audits by Halborn. Funds are never pooled; users maintain self-custody post-settlement.

Custodial Risk

24/7

Security Monitoring

White-Label SDK & APIs

Fully customizable React components and REST APIs for seamless integration. Deploy a branded ramp in your dApp within weeks, not months, with full control over the user journey.

< 3 weeks

Avg. Integration

1:1 Parity

Design System Match

benefits

DELIVERABLES & GUARANTEES

Business Outcomes for Your L2 Application

Our fiat-to-L2 ramp development delivers measurable infrastructure improvements, directly impacting your user growth and operational efficiency.

Reduced User Onboarding Friction

Integrate a compliant, branded on-ramp that reduces the steps to fund an L2 wallet from 7+ to 3, directly increasing conversion rates and user retention.

< 3 steps

Average Onboarding

60%+

Typical Conversion Lift

Compliance & Regulatory Safety

Deploy with built-in KYC/AML flows, transaction monitoring, and sanction screening. Our architecture isolates liability, protecting your core application.

Global

Compliance Coverage

SOC 2 Type II

Security Framework

Faster Time-to-Market

Leverage our pre-audited modular components and payment partner integrations. Go from concept to a live, production-ready ramp in weeks, not months.

2-4 weeks

To Production

Pre-Audited

Core Modules

Optimized Transaction Economics

Smart routing across liquidity providers and L2 bridges minimizes fees and maximizes settlement speed, improving your unit economics and user experience.

1-2%

Average Total Fee

< 90 sec

Settlement Time

Scalable & Reliable Infrastructure

Enterprise-grade architecture with automated failover, 24/7 monitoring, and SLA-backed uptime ensures your ramp scales with user demand without service degradation.

99.9%

Uptime SLA

< 50 ms

API Latency P99

Actionable Data & Insights

Gain full visibility into funnel performance, fee breakdowns, and user behavior with integrated analytics dashboards to inform product and growth decisions.

Real-time

Analytics

Funnel Tracking

Built-in

Infrastructure Decision Matrix

Build vs. Buy: Embedded Ramp vs. Third-Party Redirect

A technical and commercial comparison between developing a custom fiat-to-L2 on-ramp in-house versus integrating a third-party redirect service. This table helps CTOs and product leads evaluate the long-term strategic impact on user experience, security, and total cost of ownership.

Key Factor	Build Embedded Ramp (In-House)	Buy Third-Party Redirect
Time to Market	4-9 months	1-4 weeks
Initial Development Cost	$150K - $500K+	$0 - $50K (integration)
User Experience & Branding	Fully seamless, native app flow	Disruptive redirect to external site
Revenue Model Control	Direct custody of transaction fees	Reliant on partner's fee-sharing terms
Compliance & KYC Burden	Your legal team's responsibility (high)	Fully managed by provider (low)
Technical Maintenance	Ongoing team of 2-3 engineers	Handled by provider
Security & Audit Overhead	High (requires full audit cycle)	Provider's responsibility (shared model)
Data & User Insights	Full ownership of all user flow data	Limited or anonymized data sharing
Supported Payment Methods	Customizable to target markets	Limited to provider's available rails
Long-term Flexibility & Scalability	Full control to adapt and scale	Dependent on provider's roadmap and limits

how-we-deliver

CLIENT-CENTRIC DELIVERY

Our Development & Integration Process

A proven, transparent workflow designed for FinTechs and crypto startups to launch compliant, high-performance fiat on-ramps with minimal operational overhead.

Discovery & Architecture Design

We conduct a technical deep-dive to define your specific requirements, from target L2 chain and payment methods to KYC/AML flow. We deliver a detailed architecture document and project roadmap.

Client Value: Clear scope, defined timelines, and a technical blueprint aligned with your business goals from day one.

1-2 weeks

Project Scoping

Detailed Spec

Deliverable

Smart Contract & Backend Development

Our engineers build the core infrastructure: secure smart contracts for fund custody and settlement on your chosen L2 (Arbitrum, Optimism, Base, etc.), and a robust backend for payment processing and user management.

Client Value: Production-ready, gas-optimized code built on audited patterns, ensuring security and scalability.

Solidity 0.8+

Code Standard

OpenZeppelin

Security Base

Payment Gateway Integration

We integrate with leading payment service providers (PSPs) and banking-as-a-service (BaaS) platforms to enable seamless card payments, bank transfers, and local payment methods, handling FX and compliance at the gateway level.

Client Value: Access to global payment rails without building complex banking relationships or compliance systems from scratch.

Multiple PSPs

Gateway Options

Global

Coverage

KYC/AML & Compliance Engine

Integration with certified third-party providers for identity verification (IDV), sanction screening, and transaction monitoring. We implement the logic to enforce jurisdictional rules and risk-based limits.

Client Value: A compliant onboarding flow that meets global regulatory standards (FATF Travel Rule, 5AMLD), reducing your legal and reputational risk.

Frontend SDK & White-Label Integration

We provide a customizable React/TypeScript SDK or widget that can be embedded directly into your dApp or platform, offering a branded user experience for the deposit flow.

Client Value: Rapid integration with your existing UI/UX. Launch your branded ramp in days, not months, with full control over the user journey.

React/TS SDK

Delivery

Fully Branded

Customization

Deployment, Monitoring & Support

We manage the deployment to production, establish real-time monitoring dashboards for transaction success rates and system health, and provide ongoing technical support and maintenance.

Client Value: A turnkey launch with 24/7 system oversight. We ensure high uptime and are on call to resolve issues, allowing your team to focus on core product development.

99.9%

Uptime SLA

24/7

Support

security-compliance

CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built for scale and compliance.

We architect and deploy custom Solidity and Rust smart contracts that form the backbone of your Web3 application. Our focus is on security-first development, gas optimization, and future-proof architecture.

Deliver a secure, audited, and fully functional smart contract system in as little as 2-4 weeks.

Security & Audits: Built with OpenZeppelin standards and validated through internal audits before third-party review.
Protocol Integration: Native support for ERC-20, ERC-721, ERC-1155, and custom cross-chain standards.
Gas Optimization: Reduce user transaction costs by up to 40% through efficient code patterns.
Full Lifecycle Support: From initial design and development to deployment, monitoring, and upgrade management.

Technical & Commercial Insights