We architect and deploy custom smart contracts that form the secure, immutable backbone of your application. Our development process is built on audited patterns and gas-optimized code to ensure reliability and cost-efficiency from day one.
LABS
Services
Bridgeless Cross-Rollup Atomic Swap Protocols
We design and audit secure, peer-to-peer protocols that enable direct atomic asset swaps between users on different rollups, eliminating central bridge risk and wrapped asset dependencies.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts for your specific use case.
- Full-Stack Development: From
ERC-20tokens andERC-721NFTs to complex DeFi protocols and DAO governance systems. - Security-First Approach: Rigorous testing with Foundry/Hardhat, formal verification, and pre-audit reviews using OpenZeppelin standards.
- Guaranteed Outcomes: Receive production-ready contracts with comprehensive documentation and a clear path to mainnet deployment.
We deliver contracts you can trust, reducing your time-to-market and technical risk with battle-tested Solidity and Rust (
solana-program).
key-features-cards
BRIDGELESS CROSS-ROLLUP ATOMIC SWAPS
Core Protocol Capabilities We Deliver
Our protocol eliminates trusted intermediaries and liquidity fragmentation, delivering secure, instant asset transfers across any rollup or L2. We build the foundational infrastructure for a unified, multi-chain ecosystem.
01
Trustless Atomic Swap Engine
We implement a decentralized settlement layer using cryptographic proofs (HTLCs, ZKPs) to guarantee atomicity. Either the entire cross-chain transaction succeeds or all funds are returned, removing counterparty risk.
0
Trusted Intermediaries
100%
Atomic Guarantee
02
Multi-Rollup State Synchronization
Our protocol monitors and verifies finality across diverse environments (Optimistic Rollups, ZK-Rollups, sidechains). We ensure consistent, verifiable state proofs for secure settlement on any connected chain.
10+
Protocols Supported
< 3 sec
Finality Verification
03
Gas-Optimized Smart Contracts
We develop and audit core swap contracts in Solidity/Vyper, implementing efficient signature schemes (EIP-712) and storage patterns to minimize transaction costs for end-users on both source and destination chains.
40-60%
Gas Reduction
OpenZeppelin
Security Standard
04
Relayer Network Infrastructure
We deploy and manage a decentralized network of permissionless relayers to broadcast transactions and proofs. The system is designed for high availability and censorship resistance, ensuring swap execution.
99.9%
Uptime SLA
Geo-distributed
Network
benefits
TANGIBLE RESULTS
Business Outcomes for Your Platform
Our bridgeless cross-rollup atomic swap protocol delivers measurable infrastructure advantages, directly impacting your platform's growth, security, and user experience.
01
Eliminate Bridge Risk & Capital Lockup
Enable direct, non-custodial asset swaps between rollups without relying on vulnerable bridging infrastructure. Your users retain full control of their funds, removing counterparty risk and unlocking capital efficiency.
0%
Counterparty Risk
0s
Capital Lockup
02
Sub-Second Finality for Swaps
Achieve near-instantaneous cross-rollup settlement using atomic swap protocols. This eliminates the multi-block confirmation delays of traditional bridges, creating a seamless DeFi and trading experience.
< 1 sec
Swap Finality
24/7
Uptime
03
Substantially Lower Transaction Costs
Bypass bridge fees and L1 settlement costs. Our protocol optimizes gas usage across rollups, passing significant savings directly to your end-users and improving the economics of high-frequency interactions.
Up to 90%
vs Bridge Fees
$0.01-0.10
Avg. Swap Cost
04
Expand Asset & Chain Coverage
Rapidly integrate new rollups and assets into your platform without building custom bridges. Our modular protocol supports EVM-compatible L2s and app-chains, future-proofing your interoperability strategy.
2 weeks
New Rollup Integration
EVM+
Compatibility
06
Reduce Dev Time & Maintenance
Integrate a complete, production-ready cross-rollup swap system via API and SDK, eliminating years of R&D and ongoing bridge maintenance. Our team manages protocol upgrades and node infrastructure.
4-6 weeks
Integration Timeline
Managed
Infrastructure
Technical Comparison
Bridgeless Swaps vs. Traditional Bridge Architecture
A direct comparison of key architectural, security, and operational differences between modern bridgeless atomic swaps and legacy bridge-based solutions.
| Architectural Feature | Traditional Bridge | Bridgeless Atomic Swap |
|---|---|---|
Core Mechanism | Centralized or MPC-based custodial vaults | Peer-to-peer atomic swap via smart contracts |
User Asset Custody | Vulnerable to bridge hacks (e.g., Wormhole, Ronin) | Non-custodial; user retains control until swap |
Trust Assumption | Trust in bridge operator's multisig or MPC | Trustless; secured by cryptographic proofs on-chain |
Settlement Finality | Delayed (minutes to hours for verification) | Atomic (instant, all-or-nothing execution) |
Capital Efficiency | Low (requires deep liquidity pools on both sides) | High (direct P2P matching, no locked liquidity) |
Protocol Risk Surface | Large, attractive target for exploits | Minimal, limited to individual swap contract logic |
Cross-Chain Fee Model | Bridge operator fees + gas on both chains | Single network fee paid by the swapper |
Development & Audit Complexity | High (complex multi-chain messaging, governance) | Lower (focus on single, audited swap contract per chain) |
Time to Market for Integration | Weeks (integration with external bridge API) | Days (integrate standard contract interfaces) |
Historical Security Record | Poor (billions lost in bridge exploits) | Proven (theoretical model with no major exploits to date) |
how-we-deliver
SECURITY-FIRST ENGINEERING
Our Development & Audit Methodology
We build and verify cross-rollup protocols with a zero-trust approach, delivering production-ready systems backed by formal verification and adversarial testing.
01
Formal Verification & Specification
Every protocol begins with a machine-checked formal specification in TLA+ or Coq, mathematically proving correctness of the atomic swap logic and failure modes before a single line of Solidity is written.
100%
Core Logic Verified
< 48 hrs
Spec Review Cycle
02
Adversarial Testnet Deployment
We deploy to a private, incentivized testnet where white-hat hackers attempt to break the protocol. This battle-testing uncovers edge cases missed in unit testing.
50+
Attack Vectors Simulated
0 Critical
Post-Testnet
03
Multi-Layer Security Audits
Independent audits from firms like Trail of Bits and Spearbit, supplemented by our internal review against the SWC Registry and DeFi Threat Matrix.
3+
Audit Firms
SMT Checker
Automated Verification
EXPLORE
04
Gas Optimization & Benchmarking
Protocols are optimized for L2 gas economics. We provide benchmark reports comparing costs across Arbitrum, Optimism, Base, and zkSync to ensure cost-effective cross-rollup operations.
40-60%
Gas Reduction
4 Chains
Benchmarked
05
Continuous Monitoring & Incident Response
Post-deployment, we provide 24/7 monitoring for failed swaps, liquidity imbalances, and mempool attacks, with a documented IRP (Incident Response Playbook) for rapid mitigation.
24/7
Monitoring
< 5 min
Alert Response SLA
06
Documentation & Integration Kits
Clients receive comprehensive technical docs, integration SDKs in TypeScript/Go, and a staging environment sandbox to test integrations before mainnet deployment.
2 SDKs
TypeScript & Go
Full Staging
Sandbox Included
Project Phases & Deliverables
Typical 8-12 Week Delivery Timeline
A structured roadmap for delivering a production-ready, bridgeless cross-rollup atomic swap protocol, from initial design to mainnet launch and support.
| Phase & Key Deliverables | Weeks 1-3 (Design & Architecture) | Weeks 4-8 (Development & Testing) | Weeks 9-12 (Deployment & Handoff) |
|---|---|---|---|
Core Protocol Architecture | Technical spec, security model, chain selection (e.g., Arbitrum, Base, zkSync) | Smart contract suite development (Solidity 0.8+) | Final audit report integration, deployment scripts |
Swap Engine & Relayer Network | Mechanism design (HTLCs, signed orders), relayer node specs | Core swap logic, off-chain relayer service, fee model | Relayer deployment, load testing, monitoring dashboard setup |
Security & Audits | Threat modeling, OpenZeppelin integration plan | Internal review, unit/integration testing | External audit by firms like Spearbit or Code4rena |
Frontend Integration SDK | API schema definition, wallet (e.g., Wagmi/viem) integration plan | SDK development with TypeScript, sample dApp UI | Documentation, final npm package publish |
Deployment & Go-Live | Testnet deployment plan (Sepolia, Holesky) | Multi-chain testnet deployment, bug bounty setup | Mainnet deployment on 2+ chains, production monitoring |
Client Support & Knowledge Transfer | Kickoff workshop, requirement finalization | Bi-weekly demos, staging environment access | Final handoff, operational runbook, optional SLA sign-up |
Bridgeless Atomic Swaps
Frequently Asked Questions
Get clear answers on how our trustless cross-rollup protocol development works, from security to deployment.
A standard deployment for a bridgeless atomic swap protocol takes 4-8 weeks. This includes 2 weeks for architecture and smart contract design, 2-4 weeks for development and internal testing, and 1-2 weeks for third-party security audits. Complex multi-chain integrations or custom liquidity mechanisms can extend this timeline, which we scope and quote for upfront.
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