We architect and deploy custom smart contracts for DeFi, NFTs, DAOs, and enterprise applications. Our development process is built on OpenZeppelin libraries and Solidity 0.8+ best practices, ensuring security and gas efficiency from day one.
LABS
Services
Privacy-Preserving Cross-Chain Swap Infrastructure
Chainscore builds secure, zero-knowledge proof-based infrastructure for cross-chain asset swaps that conceal transaction amounts and participant identities, meeting institutional DeFi compliance and privacy requirements.
Chainscore © 2026
overview
CORE INFRASTRUCTURE
Smart Contract Development
Secure, production-ready smart contracts built on battle-tested standards and audited code.
- Security-First Development: Every contract undergoes internal audits and formal verification before deployment. We implement multi-sig wallets and timelocks for critical operations.
- Protocol Integration: Seamless compatibility with
ERC-20,ERC-721,ERC-1155, and custom standards for cross-chain or Layer 2 solutions. - Full Lifecycle Support: From initial spec to mainnet deployment and post-launch upgrades, we manage the entire process.
Deliver a secure, auditable, and maintainable codebase that reduces deployment risk and accelerates your time-to-market.
key-features-cards
BUILT FOR SCALE AND SECURITY
Core Infrastructure Capabilities
Our infrastructure is engineered from the ground up to provide the reliability, privacy, and speed required for high-volume cross-chain trading. We deliver production-ready components, not just proofs-of-concept.
benefits
TANGIBLE RESULTS
Business Outcomes for Your Platform
Our privacy-preserving cross-chain infrastructure delivers measurable advantages, from accelerated time-to-market to enhanced user trust and operational resilience.
01
Accelerated Time-to-Market
Deploy a production-ready, audited cross-chain swap solution in under 3 weeks. We provide the complete infrastructure stack, eliminating months of R&D and integration work.
< 3 weeks
To Production
0
Protocol R&D Required
02
Enhanced User Privacy & Security
Implement zero-knowledge proof (zk-SNARKs) based swaps that obscure transaction links and amounts. Builds user trust and differentiates your platform in a competitive market.
zk-SNARKs
Privacy Standard
Trail of Bits
Audit Partner
03
Reduced Operational Complexity
Offload the maintenance of relayers, oracles, and multi-chain state synchronization. We manage the infrastructure with a 99.95% uptime SLA, so your team can focus on core product features.
99.95%
Uptime SLA
24/7
Infra Monitoring
04
Optimized Cost & Liquidity Access
Access aggregated liquidity from 15+ major DEXs and bridges. Our routing algorithms minimize slippage and gas costs, directly improving your users' swap efficiency and your platform's fee revenue.
15+
Integrated DEXs/Bridges
< 0.3%
Avg. Slippage Target
05
Regulatory & Compliance Readiness
Architected with compliance in mind. Our privacy-preserving design includes optional, verifiable compliance modules for sanctioned address screening, providing a future-proof foundation.
Modular
Compliance Layer
On-Chain
Proof Generation
06
Scalable Multi-Chain Foundation
Easily extend swap support to new EVM and non-EVM chains without rebuilding core logic. Our abstracted architecture future-proofs your platform against ecosystem fragmentation.
EVM & Non-EVM
Chain Support
< 1 week
New Chain Integration
Structured Roadmap to Production
Phased Development & Delivery
A transparent, milestone-based delivery model for privacy-preserving cross-chain swap infrastructure, designed to de-risk development and align with your go-to-market timeline.
| Phase & Deliverables | Foundation (Weeks 1-4) | Integration (Weeks 5-8) | Scale & Optimize (Weeks 9-12) |
|---|---|---|---|
Core Protocol Architecture | Design spec, ZK-circuit logic, smart contract framework | Deployed testnet contracts, relayers, and prover nodes | Production-grade deployment with failover systems |
Supported Chains & Assets | Ethereum, Polygon (2 chains) | Add Arbitrum, Base (4 total) | Add Optimism, Avalanche (6+ total) |
Privacy Features | Basic stealth address generation | Full ZK-proof privacy for swaps (zk-SNARKs) | Advanced privacy pools & mixer integration |
Developer Tooling | Basic SDK & API documentation | Full-featured SDK, test suite, and monitoring dashboards | Custom integration support & advanced analytics |
Security & Audits | Internal review & formal verification | External audit by top-tier firm (e.g., Quantstamp) | Bug bounty program setup & ongoing monitoring |
Performance SLA | n/a | 99.5% uptime on testnet | 99.9% uptime SLA, <2s finality on mainnet |
Support Level | Weekly syncs & email | Bi-weekly syncs & priority Slack channel | 24/7 on-call support & dedicated technical account manager |
Typical Investment | $50K - $80K | $80K - $120K | $120K+ (custom) |
how-we-deliver
PROVEN METHODOLOGY
Our Development & Integration Process
A structured, security-first approach to deliver production-ready privacy-preserving swap infrastructure in weeks, not months.
01
Architecture & Protocol Design
We design the optimal cross-chain architecture for your use case, selecting and integrating privacy primitives like zk-SNARKs (e.g., Tornado Cash Nova) or secure multi-party computation (MPC).
2-3 days
Initial Design Sprint
5+
Protocols Evaluated
02
Smart Contract Development & Auditing
Our team writes gas-optimized Solidity/Vyper contracts for bridges, routers, and privacy modules. All code undergoes internal review followed by a formal audit from a top-tier firm like Quantstamp or CertiK.
100%
Audit Coverage
OpenZeppelin
Security Standard
03
Relayer & Infrastructure Deployment
We deploy and manage the critical off-chain infrastructure: high-availability relayers, keeper networks for automatic proofs, and secure key management systems for MPC or TEEs.
99.9%
Relayer Uptime SLA
< 500ms
Median Relay Time
04
SDK & Frontend Integration
Receive a lightweight, documented TypeScript SDK and React component library for seamless integration into your dApp's UI, handling all wallet interactions and state management.
< 1 day
Integration Time
Wagmi/Viem
Built With
05
Staging & Mainnet Launch
We conduct end-to-end testing on testnets (Sepolia, Holesky) with simulated load, followed by a phased mainnet rollout with monitoring and incident response protocols active from day one.
2 weeks
Typical Timeline
24/7
Launch Support
06
Ongoing Maintenance & Upgrades
Post-launch, we provide monitoring, performance optimization, and protocol upgrades. This includes integrating new chains (e.g., Monad, Berachain) and updating to the latest privacy libraries.
1 hr
Avg. Response Time
Monthly
Health Reports
security
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts to power your decentralized application.
We architect and deploy custom smart contracts on EVM and Solana that are secure, gas-optimized, and tailored to your business logic. Our process delivers a 2-week MVP for rapid validation, followed by a full production build.
- Security-First Development: Built with
Solidity 0.8+andOpenZeppelinlibraries, followed by third-party audits from firms like CertiK or Quantstamp. - Full-Spectrum Contracts: From standard
ERC-20,ERC-721, andERC-1155tokens to complex DeFi primitives like AMMs, lending pools, and staking vaults. - End-to-End Ownership: We deliver fully documented source code, deployment scripts, and a comprehensive handover.
Reduce your time-to-market and technical risk with battle-tested contracts that have secured over $500M+ in on-chain value for our clients.
Privacy-Preserving Cross-Chain Swaps
Frequently Asked Questions
Get clear answers on our infrastructure's capabilities, security, and integration process.
Our infrastructure uses a combination of zero-knowledge proofs (ZKPs) and secure multi-party computation (MPC) to enable private asset transfers across chains. Users initiate a swap on a source chain (e.g., Ethereum), where assets are locked. A ZK proof is generated to verify the swap's validity without revealing sender, receiver, or amount details. This proof is relayed via our decentralized network of oracles to the destination chain (e.g., Polygon), where the corresponding assets are released. The entire process maintains privacy while ensuring atomicity and security.
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