We architect and deploy custom smart contracts that power your Web3 application, from tokenomics to complex DeFi protocols. Our development process ensures security-first design and gas optimization from day one.
LABS
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Cross-Chain Payment & Swapping SDK
A developer SDK that embeds cross-chain liquidity access directly into your wallet interface. Users can pay or swap assets across Ethereum, Solana, Polygon, and other major chains without leaving your app.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for your specific business logic and deployed to mainnet.
- Full Lifecycle Support: Strategy, development, auditing, deployment, and monitoring.
- Protocol Expertise:
ERC-20,ERC-721,ERC-1155,ERC-4626, and custom standards. - Security Rigor: Built with OpenZeppelin libraries and prepared for third-party audits.
Deliver a battle-tested, auditable codebase that reduces risk and accelerates your time-to-market.
Typical Deliverables: Production-ready Solidity/Vyper contracts, comprehensive test suites, deployment scripts, and technical documentation for your team.
key-features-cards
BUILT FOR SCALE
Core SDK Capabilities
Our Cross-Chain Payment & Swapping SDK provides the essential building blocks for your application, abstracting away infrastructure complexity so you can focus on your core product.
02
Cross-Chain Swaps with Guaranteed Settlement
Execute asset swaps across 15+ major chains with sub-2 minute finality. Our SDK uses a hybrid liquidity model (AMMs + RFQs) to ensure optimal pricing and a 99.9% settlement success SLA, eliminating failed transaction headaches.
15+
Supported Chains
< 2 min
Guaranteed Finality
99.9%
Settlement SLA
03
Enterprise-Grade Security & Audits
Deploy with confidence. Our core smart contracts and SDK are audited by leading firms like Trail of Bits and CertiK. We implement formal verification for critical payment pathways and maintain a public bug bounty program.
04
Real-Time Gas Optimization
Dynamically route transactions through the most cost-efficient networks and layer-2s. Our system monitors real-time gas prices and network congestion, typically reducing user transaction costs by 40-60% compared to manual routing.
40-60%
Avg. Gas Savings
< 100ms
Routing Latency
05
Unified Payment Gateway API
Accept crypto payments from any chain with a single integration. Supports fiat on-ramps, recurring subscriptions, and one-click checkout flows. Process over $50M+ in monthly volume with our battle-tested gateway.
$50M+
Monthly Volume
1
Unified API
06
Compliance & Monitoring Toolkit
Built-in tools for AML screening, transaction monitoring, and regulatory reporting. Generate real-time compliance dashboards and audit trails, simplifying integration with providers like Chainalysis and Elliptic.
benefits
DELIVERABLES
Business Outcomes for Your Product
Our Cross-Chain SDK delivers measurable infrastructure improvements, enabling your product to scale securely and capture new revenue streams.
01
Faster Time-to-Market
Integrate multi-chain payments and swaps in under 2 weeks with our production-ready SDK. We handle protocol complexity so your team can focus on core product features.
< 2 weeks
Integration Time
100+
Pre-built Connectors
02
Reduced Operational Overhead
Eliminate the need to build and maintain custom bridge infrastructure, RPC nodes, and liquidity pools. Our managed service handles uptime, security patches, and protocol updates.
99.9%
Uptime SLA
0
Bridge Dev Cost
03
Expanded Market Reach
Enable seamless transactions across 15+ major EVM and non-EVM chains (Ethereum, Solana, Polygon, Arbitrum, etc.), unlocking access to fragmented liquidity and user bases.
15+
Supported Chains
$50B+
Aggregate Liquidity
05
Optimized Transaction Economics
Dynamically route swaps across DEXs and bridges to guarantee the best rates with minimal slippage. Real-time fee optimization reduces user costs by up to 40%.
40%
Avg. Cost Reduction
< 0.5%
Max Slippage
Cross-Chain SDK Capabilities
Technical Specifications & Supported Networks
Compare the core features, supported networks, and service levels across our SDK tiers to find the right fit for your project's scale and requirements.
| Feature / Specification | Starter | Professional | Enterprise |
|---|---|---|---|
Supported Networks | Ethereum, Polygon, Base | Ethereum, Polygon, Base, Arbitrum, Optimism | All Starter & Pro, plus Avalanche, BNB Chain, zkSync Era |
Transaction Throughput | Up to 1,000 TPS | Up to 5,000 TPS | 10,000+ TPS |
Smart Contract Audit | |||
Gas Optimization Engine | |||
MEV Protection | |||
Uptime SLA | 99.5% | 99.9% | 99.99% |
Support Response Time | Business Hours | 12 Hours | 1 Hour (24/7) |
Custom Bridge Integration | |||
Deployment & Integration Support | Documentation | Guided Setup | Dedicated Engineer |
Starting Price (Annual) | $15K | $50K | Custom Quote |
how-we-deliver
FROM CONCEPT TO PRODUCTION
Our Delivery Process
A structured, transparent approach to integrating cross-chain liquidity into your application. We deliver a production-ready SDK, not just a proof-of-concept.
01
Architecture & Strategy Session
We analyze your product's specific needs—target chains, token types, and user flows—to design an optimal integration strategy. This ensures the SDK aligns with your business logic and technical stack from day one.
1-2 days
Workshop Duration
Clear Roadmap
Deliverable
02
SDK Integration & Customization
Our engineers integrate the SDK into your codebase, handling wallet connection, transaction routing, and state management. We customize for your UI/UX and implement required security wrappers.
2-3 weeks
Typical Timeline
Full Support
Includes Testing
03
Rigorous Testing & Security Audit
We conduct end-to-end testing across all integrated chains, simulate edge-case failures, and perform a final security review. The SDK itself is pre-audited, but we ensure your implementation is bulletproof.
Multi-Chain
Test Coverage
Security Review
Final Deliverable
04
Deployment & Go-Live Support
We manage the production deployment, configure monitoring dashboards for transaction health, and provide 24/7 on-call support during the initial launch period to ensure a smooth user experience.
99.9% SLA
Uptime Guarantee
Launch Support
Included
The Strategic Decision for Your Product
Build vs. Buy: SDK Integration Analysis
A data-driven comparison of developing a cross-chain payment and swapping system in-house versus leveraging Chainscore's production-ready SDK to accelerate your roadmap and mitigate risk.
| Key Factor | Build In-House | Chainscore SDK |
|---|---|---|
Time to First Transaction | 6-12+ months | 2-4 weeks |
Initial Development Cost | $250K - $500K+ | $15K - $50K |
Security & Audit Burden | High (Your team's responsibility) | Pre-audited, battle-tested code |
Supported Chains (Out-of-box) | Requires per-chain integration | Ethereum, Polygon, Arbitrum, Base, Optimism |
Liquidity Access | Build aggregators & partnerships | Integrated with 50+ DEXs & Bridges |
Ongoing Maintenance & Updates | Dedicated 3-5 engineer team | Handled by Chainscore, optional SLA |
Compliance & Gas Optimization | Custom R&D required | Built-in fee abstraction & compliance hooks |
Total Cost of Ownership (Year 1) | $500K - $1M+ | $50K - $150K |
Cross-Chain SDK
Frequently Asked Questions
Get clear answers on integrating cross-chain payments and swaps into your application.
For a standard integration with major EVM chains (Ethereum, Polygon, Arbitrum), you can have a live, audited payment flow in 2-3 weeks. Complex multi-chain deployments with custom logic or non-EVM chains typically take 4-6 weeks. We provide a detailed sprint plan on 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