We architect, develop, and audit custom Solidity/Rust smart contracts that form the immutable business logic for your protocol. Our focus is on security-first development, leveraging battle-tested patterns from OpenZeppelin and formal verification tools to mitigate risks before deployment.
LABS
Services
Cross-Chain Atomic Swap Checkout
A secure, non-custodial payment gateway that lets your platform accept any major cryptocurrency. We eliminate reliance on centralized bridges and wrapped assets through atomic swap technology.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts.
Deliver a secure, gas-optimized foundation that your users and investors can trust.
- End-to-End Development: From initial specification and architecture to deployment and mainnet verification.
- Security Audits & Best Practices: Internal reviews using
Slither/MythX, adherence toERCstandards (ERC-20,ERC-721,ERC-1155). - Gas Optimization: Code-level analysis to reduce transaction costs by 15-40%, critical for user adoption.
- Upgradeability Patterns: Implementation of secure proxy patterns (
TransparentProxy,UUPS) for future-proofing.
key-features-cards
ARCHITECTURE PRINCIPLES
Engineered for Security and Scale
Our cross-chain atomic swap checkout is built on a foundation of battle-tested security and enterprise-grade infrastructure, designed to handle the demands of high-volume fintech and Web3 applications.
01
Non-Custodial Architecture
Users retain full control of their assets. Our smart contracts facilitate direct peer-to-peer swaps with zero intermediary risk, eliminating the single point of failure common in centralized bridges.
0%
Custodial Risk
P2P
Settlement
02
Formally Verified Smart Contracts
Core swap logic is mathematically proven for correctness using tools like Certora and Slither. Every contract undergoes a multi-stage audit process before deployment.
100%
Code Coverage
3+ Audits
Per Protocol
03
Sub-Second Finality
Optimized contract logic and gas-efficient transaction batching enable swap confirmations in under one second on supported EVM chains, matching CEX speeds.
< 1 sec
Confirmation
~200k gas
Avg. Cost
04
Horizontal Scalability
Modular, chain-agnostic design allows seamless addition of new blockchains and assets without refactoring core logic. Built to support 10,000+ TPS across all integrated networks.
10k+
TPS Capacity
2 weeks
New Chain Integration
05
Continuous Monitoring & SLAs
24/7 on-chain monitoring for failed transactions and liquidity imbalances, with automated failover systems. Backed by a 99.9% uptime SLA for the routing layer.
99.9%
Uptime SLA
24/7
Monitoring
06
Compliance-Ready Infrastructure
Built-in transaction logging, address screening (OFAC), and configurable risk parameters. Architecture supports integration with enterprise compliance stacks.
OFAC
Screening
FATF
Guidelines
benefits
DELIVERABLES
Business Outcomes for Your Platform
Our cross-chain atomic swap checkout delivers measurable results, from accelerated revenue to hardened security. Here’s what you can expect.
01
Accelerated Time-to-Market
Deploy a fully integrated, production-ready checkout in under 4 weeks. We handle the complex smart contract logic, liquidity routing, and UI/UX, so you can launch faster.
< 4 weeks
Deployment Time
0 lines
Bridge Code to Write
02
Enhanced User Conversion
Reduce checkout friction by 70%+ with a single-click flow. Users swap assets across chains without bridging, depositing, or managing multiple wallets, directly boosting transaction completion.
70%+
Friction Reduction
1 click
User Action
03
Secure, Non-Custodial Execution
Every swap executes via audited, time-locked smart contracts on both chains. Funds never touch our servers, eliminating counterparty risk and ensuring user asset security.
100%
Non-Custodial
2 audits
Per Contract
04
Expanded Market Reach
Instantly access liquidity and users from 10+ supported chains (Ethereum, Solana, Polygon, etc.). Capture value from any ecosystem without building separate integrations.
10+
Chains Supported
1 integration
To Access All
05
Predictable, Reduced Costs
Eliminate the overhead of maintaining bridge infrastructure and liquidity pools. Our managed service model converts capital-intensive R&D into a predictable operational expense.
$0
Bridge R&D Cost
90%
Ops Overhead Saved
06
Enterprise-Grade Reliability
Built with 99.9% uptime SLAs and automated failover. Our system monitors chain health and liquidity in real-time to guarantee transaction success and settlement finality.
99.9%
Uptime SLA
< 2 min
Failover Time
Technical & Operational Comparison
Atomic Swaps vs. Traditional Crypto Payments
A detailed breakdown of how our Cross-Chain Atomic Swap Checkout outperforms conventional, custodial crypto payment gateways on critical metrics for modern Web3 businesses.
| Feature / Metric | Traditional Custodial Gateway | Chainscore Atomic Swap Checkout |
|---|---|---|
Settlement Model | Custodial (Hold & Forward) | Non-Custodial (P2P Atomic Swap) |
Cross-Chain Capability | No (Requires Centralized Exchange) | Native (Direct Chain-to-Chain Swap) |
Counterparty Risk | High (Relies on Gateway Solvency) | None (Hash Time-Locked Contracts) |
User Funds Custody | Gateway Holds User Assets | User Retains Control Until Swap |
Time to Final Settlement | Minutes to Hours (Multi-Step) | < 2 Minutes (Single Transaction) |
Supported Asset Pairs | Limited (Gateway's Liquidity) | Virtually Unlimited (DEX Aggregation) |
Integration Complexity | High (KYC/AML, API Limits) | Low (Smart Contract & SDK Focus) |
Regulatory Exposure | High (FinCEN/MSB Compliance) | Reduced (Non-Custodial Model) |
Typical Fee Structure | 2-4% + Network Fees | 0.3-0.5% + Network Fees |
Development Timeline | 3-6 Months | 4-8 Weeks |
how-we-deliver
PREDICTABLE, TRANSPARENT, AND FAST
Our Delivery Process: From Integration to Go-Live
We provide a structured, milestone-driven approach to deliver your cross-chain checkout solution with zero surprises. Our proven process ensures technical excellence and rapid deployment.
01
Discovery & Architecture Design
We conduct a deep-dive technical workshop to map your tokenomics, target chains, and user flows. You receive a detailed architecture document outlining the optimal swap protocol, bridge selection, and security model.
2-3 days
Workshop Duration
1
Architecture Blueprint
02
Smart Contract Development & Audit
Our engineers build custom, gas-optimized swap contracts in Solidity 0.8+ using OpenZeppelin libraries. All core logic undergoes a mandatory internal audit and is prepared for third-party review.
OpenZeppelin
Security Standard
2-3 weeks
Development Sprint
04
Security Review & Mainnet Deployment
We facilitate a formal audit with a partner firm (e.g., Spearbit, Code4rena). Upon successful audit and your approval, we deploy the verified contracts to mainnet and configure the production-ready infrastructure.
Third-Party
Audit Mandatory
99.9% SLA
Infrastructure Uptime
05
Monitoring & Analytics Go-Live
We activate real-time dashboards for transaction success rates, liquidity health, and fee analytics. Your team receives 24/7 alerting for any anomalies, ensuring a smooth launch and ongoing operational visibility.
Real-time
Dashboard
24/7
Health Monitoring
06
Ongoing Support & Scaling
Post-launch, we provide dedicated technical support and proactive updates for new chain integrations (e.g., Arbitrum, Base) and protocol upgrades. We scale infrastructure automatically with your transaction volume.
Dedicated
Technical Support
Auto-scale
Infrastructure
Cross-Chain Checkout
Frequently Asked Questions
Get clear answers on how our atomic swap checkout service works, from integration to security.
A standard integration takes 2-3 weeks from kickoff to production deployment. This includes smart contract deployment, frontend SDK integration, and a full security review. Complex multi-chain deployments or custom UI requirements can extend this to 4-5 weeks.
ENQUIRY
Get In Touch
today.
Our experts will offer a free quote and a 30min call to discuss your project.
NDA Protected
Confidentiality24h Response
Time to ValueDirectly to Engineering Team
No Sales Fluff10+
Protocols Shipped
$20M+
TVL Overall