We architect and deploy custom smart contracts that form the secure backbone of your application. Our development process is built on OpenZeppelin standards and rigorous security-first principles, ensuring your core logic is resilient and future-proof.
LABS
Services
EVM-to-Solana Atomic Swap Development
We design and deploy secure, non-custodial atomic swap protocols that enable direct asset exchange between EVM chains and Solana, solving the technical challenges of their divergent architectures.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built for production by expert Solidity engineers.
From tokenomics to complex DeFi logic, we translate your business rules into immutable, gas-optimized code.
- Full-Stack Delivery: End-to-end development from
Solidity/Vypercontracts to comprehensive testing suites and deployment scripts. - Security Audits: Every contract undergoes internal review and can be prepared for third-party audits from firms like CertiK or Quantstamp.
- Protocol Integration: Seamless compatibility with major standards (
ERC-20,ERC-721,ERC-1155) and DeFi building blocks like Uniswap V3.
key-features-cards
BUILDING TRUSTLESS BRIDGES
Core Protocol Capabilities We Deliver
We engineer the foundational smart contracts and off-chain infrastructure required for secure, high-throughput atomic swaps between EVM and Solana ecosystems. Our focus is on delivering production-ready, audited protocols that eliminate counterparty risk and settlement delays.
01
Bi-Directional Asset Locking
Secure, non-custodial smart contracts on both EVM (Solidity) and Solana (Rust) that lock assets for the duration of the swap. Implements time-locks and refund mechanisms to protect users from failed transactions.
0%
Counterparty Risk
Non-Custodial
Architecture
02
Cross-Chain Proof Verification
Off-chain relayer service that validates transaction proofs from the source chain (e.g., Ethereum block headers, Solana confirmations) and submits verified claims to the destination chain's contract.
> 32 Block
Ethereum Confirmations
Light Client
Verification Model
03
Hash Time-Locked Contracts (HTLC)
Core swap logic using cryptographic hash pre-images to atomically settle transactions. We implement battle-tested HTLC patterns, optimized for gas efficiency on EVM and compute units on Solana.
SHA-256 / Keccak256
Hash Functions
Configurable
Time Windows
04
Relayer & Incentive Network
Decentralized network of permissioned relayers with a staking and slashing mechanism to ensure liveness and honesty. Includes monitoring dashboards and alerting for network operators.
Staked Security
Relayer Model
24/7
Monitoring
05
End-User SDK & APIs
Developer-friendly TypeScript/JavaScript SDK and REST APIs for seamless integration into wallets, DEX frontends, and trading platforms. Handles all cross-chain interaction complexity.
< 5
Integration Steps
TypeScript
First
06
Security & Audit Readiness
Protocols built with OpenZeppelin (EVM) and Anchor (Solana) frameworks, following industry best practices. Delivered with comprehensive test suites and audit-ready code for firms like CertiK or Halborn.
100%
Line Coverage
Audit-Ready
Code Delivery
benefits
DELIVERABLES
Business Outcomes for Your Project
Our EVM-to-Solana atomic swap development delivers more than just code. We provide production-ready infrastructure with measurable business impact, designed for fintechs and Web3 startups scaling cross-chain operations.
01
Production-Ready Swap Engine
Deploy a custom, audited atomic swap smart contract suite in under 3 weeks. Our battle-tested architecture on Solidity (EVM) and Rust (Solana) ensures sub-30-second cross-chain settlement with 99.9% reliability.
< 3 weeks
Deployment Time
< 30 sec
Settlement Time
02
Enterprise-Grade Security & Audits
Receive contracts pre-audited for cross-chain vulnerabilities, including time-lock exploits and signature replay attacks. We integrate with OpenZeppelin Defender for automated monitoring and provide a formal verification report.
2+ Audits
Pre-Deployment
24/7
Threat Monitoring
03
Reduced Operational Overhead
Eliminate the need for a dedicated bridging team. We deliver a fully managed relayer service with SLA-backed uptime, handling transaction queuing, gas optimization, and failure recovery, cutting your engineering costs by up to 60%.
60%
Cost Reduction
99.9% SLA
Relayer Uptime
04
Faster Time-to-Market & Liquidity
Go live and access combined liquidity from Ethereum, Polygon, Avalanche, and Solana ecosystems simultaneously. Our modular design allows for adding new EVM chains in days, not months, accelerating your growth.
Multi-Chain
Liquidity Access
Days
New Chain Integration
Make an Informed Infrastructure Decision
Build Custom vs. Use a Generic Bridge: A Technical Comparison
Choosing the right path for cross-chain asset transfers impacts your security, time-to-market, and total cost of ownership. This table compares the key technical and operational factors between developing a custom atomic swap solution with Chainscore versus integrating a generic third-party bridge.
| Key Factor | Build a Custom Bridge In-House | Use a Generic Third-Party Bridge | Chainscore Custom Atomic Swap Development |
|---|---|---|---|
Time to Market | 6-12 months | 4-8 weeks | 4-8 weeks |
Initial Development Cost | $200K - $500K+ | $0 (integration only) | $50K - $150K |
Protocol & Chain Flexibility | Full control | Limited to bridge's roadmap | Tailored to your roadmap |
Security Model & Audit Burden | Your team's responsibility (High Risk) | Relies on bridge's security (Shared Risk) | Fully audited, dedicated contracts (Low Risk) |
Settlement Finality & Speed | Customizable (<2 sec possible) | Bridge-dependent (often 10+ min) | Optimized for speed (<2 sec target) |
User Experience & Branding | Fully branded, seamless | Generic UI, off-ramps to other apps | Fully branded, seamless flow |
Ongoing Maintenance & Upgrades | Your DevOps team, continuous cost | Managed by provider, passive updates | Optional SLA with 24/7 monitoring |
Revenue Model Control | You keep 100% of fees | You share fees with bridge operator | You keep 100% of fees |
Smart Contract Ownership | You own the IP | You are a tenant | You own the IP |
Typical Lead Time for New Chain | 3-6 months per chain | Dependent on bridge's priority | 2-4 weeks per chain |
how-we-deliver
PROVEN METHODOLOGY
Our Development & Integration Process
A systematic, security-first approach to building and deploying cross-chain atomic swaps, designed to minimize risk and accelerate your time-to-market.
01
Architecture & Protocol Design
We design a secure, gas-optimized swap architecture using Wormhole or LayerZero for message passing, with custom logic for EVM (Solidity) and Solana (Rust/Anchor) program state synchronization.
2-3 days
Design Sprint
2+ Protocols
Evaluated
02
Smart Contract Development
Development of audited, upgradeable smart contracts. EVM contracts use OpenZeppelin libraries; Solana programs follow Anchor framework best practices with comprehensive unit and integration tests.
100%
Test Coverage
OpenZeppelin
Standards
03
Relayer & Oracle Integration
Implementation of a decentralized, fault-tolerant relayer service to monitor and submit cross-chain messages, ensuring transaction finality and atomicity between chains.
99.9%
Relayer Uptime SLA
< 30 sec
Message Relay
04
Security Audit & Pen Testing
Rigorous internal review followed by a formal audit from a top-tier firm like Halborn or CertiK, focusing on cross-chain reentrancy, oracle manipulation, and fund lock vulnerabilities.
2 Rounds
Audit Phases
Critical = 0
Target
05
Testnet Deployment & Simulation
Full deployment on Sepolia and Solana Devnet. We execute end-to-end swap simulations under load and failure scenarios to validate atomicity and user experience.
500+
Test Transactions
Mainnet-like
Environment
06
Mainnet Launch & Monitoring
Phased mainnet rollout with real-time monitoring dashboards for bridge health, liquidity pools, and failed transactions. We provide 24/7 support during the initial stabilization period.
2 weeks
Stabilization Support
Full SLA
Post-Launch
security-approach
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
We architect and deploy custom smart contracts on EVM and Solana that power your core business logic. Our development process is built on OpenZeppelin standards, formal verification, and multi-stage audits to eliminate vulnerabilities before mainnet deployment.
- Token Systems:
ERC-20,ERC-721,ERC-1155, andSPLtokens with custom minting, vesting, and governance. - DeFi Protocols: Automated market makers (AMMs), lending/borrowing pools, and yield aggregators.
- Enterprise Logic: Multi-signature wallets, asset tokenization platforms, and compliant KYC/AML modules.
- Full Lifecycle: From specification and gas optimization to deployment scripts and upgradeable proxy patterns.
We deliver audit-ready code in 2-4 weeks, with a focus on security and long-term maintainability to protect your assets and users.
Technical & Commercial Insights
EVM-Solana Atomic Swap Development: FAQs
Get clear, expert answers to the most common questions from CTOs and founders evaluating cross-chain swap infrastructure.
A standard, production-ready EVM-to-Solana atomic swap bridge can be deployed in 2-4 weeks. This includes smart contract development on both chains, off-chain relayer/oracle service, and initial integration. Complex features like multi-token support, custom fee structures, or advanced security modules can extend this to 6-8 weeks. We provide a detailed project plan with weekly milestones from day one.
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