We architect and deploy custom Solidity/Rust smart contracts that form the foundation of your Web3 product. Our process ensures security-first development with formal verification, comprehensive unit testing, and adherence to established patterns from OpenZeppelin.
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Services
Decentralized Exchange Liquidity for Checkout
Integrate direct DEX liquidity into your checkout flow. Customers pay with any token, you receive settlement in a stable asset, all in one transaction. Built for Web3 merchants and FinTechs.
Chainscore © 2026
overview
CORE INFRASTRUCTURE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
From a simple token launch to a complex DeFi protocol, we deliver battle-tested code that executes as intended, every time.
- End-to-End Development: Full lifecycle support from specification and architecture to deployment and mainnet launch.
- Security Audits: Integration with top-tier audit firms and internal reviews targeting common vulnerabilities.
- Gas Optimization: Code engineered for up to 40% lower transaction costs without compromising security.
- Multi-Chain Ready: Deployable on EVM chains (Ethereum, Polygon, Arbitrum) and Solana.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core Components of Our DEX Checkout API
A modular, battle-tested API suite designed to embed secure, high-performance DEX liquidity directly into your checkout flow. We handle the blockchain complexity so you can focus on user experience and growth.
01
Multi-Chain Liquidity Router
Intelligent, gas-optimized routing across 10+ EVM chains (Ethereum, Polygon, Arbitrum, Base) to find the best price and execution path for any token swap. Eliminates manual integration work and reduces slippage.
10+
Supported Chains
< 1 sec
Route Discovery
02
Secure Transaction Orchestrator
End-to-end transaction lifecycle management with built-in nonce handling, gas estimation, and real-time status monitoring. Guarantees transaction success and provides clear user feedback.
99.9%
Success Rate
0
Stuck TXs
03
Real-Time Price & Fee Engine
Live price feeds with built-in slippage tolerance and dynamic fee calculation. Supports custom fee structures and provides transparent cost breakdowns before user confirmation. Prevents failed swaps and builds trust.
100ms
Price Update
< 0.5%
Slippage Target
04
Wallet & Signature Abstraction
Seamless integration with all major wallet providers (MetaMask, WalletConnect, Coinbase Wallet) and smart contract wallets (ERC-4337). Dramatically simplifies the user's payment journey.
20+
Wallet Types
2 Clicks
Avg. Checkout
05
Compliance & Risk Management Layer
Configurable security modules for address screening (Sanctions, AML), transaction pattern analysis, and volume limits. Enables safe, compliant operations from day one.
Real-time
Sanctions Check
Configurable
Risk Rules
06
Unified Analytics & Webhooks
Comprehensive dashboard for tracking volume, fees, and success rates across all integrations. Instant event notifications via webhooks for settlement, failures, and compliance flags. Provides full operational visibility.
100+
Data Points
< 1 sec
Webhook Delay
benefits
PROVEN RESULTS
Business Outcomes for Your Payment Stack
Integrating decentralized exchange liquidity into your checkout flow delivers measurable improvements in cost, speed, and user experience. Here’s what you can expect.
01
Drastically Lower Payment Processing Costs
Bypass traditional payment rails and their 2-3% fees. Our DEX liquidity integration enables direct crypto-to-crypto or crypto-to-fiat settlements at a fraction of the cost, typically under 0.5% per transaction.
< 0.5%
Avg. Transaction Fee
60-80%
Cost Reduction
02
Sub-Second Settlement Finality
Eliminate the 2-3 day settlement delays of ACH and card networks. Transactions settle on-chain in seconds, improving cash flow and enabling real-time financial operations.
< 2 sec
Settlement Time
24/7/365
Settlement Availability
03
Expanded Global Payment Reach
Accept payments from a global customer base without managing foreign exchange or cross-border banking. Our multi-chain liquidity pools support major assets like USDC, USDT, ETH, and SOL.
150+
Countries Supported
20+
Major Crypto Assets
04
Enterprise-Grade Security & Compliance
Built with institutional security standards. All smart contracts are audited, and our infrastructure includes real-time monitoring, fraud detection, and tools for regulatory compliance (Travel Rule, AML).
100%
Audited Contracts
SOC 2 Type II
Compliance
05
Seamless Developer Integration
Get to market fast with our well-documented APIs and SDKs. We provide white-label widgets for checkout and a unified dashboard for managing liquidity, settlements, and reporting.
< 2 weeks
Integration Time
99.9%
API Uptime SLA
06
Optimized Liquidity & Reduced Slippage
Access aggregated liquidity from top DEXs (Uniswap, Curve, PancakeSwap) and market makers. Our intelligent routing ensures the best execution price for your users, minimizing slippage even on large transactions.
$1B+
Aggregated Liquidity
< 0.1%
Typical Slippage
Infrastructure Comparison
DEX-Powered Checkout vs. Traditional Crypto Payments
A technical breakdown of how a custom DEX-powered checkout solution differs from off-the-shelf crypto payment gateways, focusing on control, cost, and capability.
| Key Factor | Traditional Payment Gateway | Custom DEX-Powered Checkout |
|---|---|---|
Liquidity Source & Fees | Centralized provider pool with 1-3% fixed fees | Direct DEX aggregation with 0.1-0.5% dynamic fees |
Settlement & Custody | Custodial; funds held by gateway for 1-7 days | Non-custodial; direct to merchant wallet in <2 minutes |
Token Support | Limited to 5-10 major assets (BTC, ETH, USDC) | 1000+ assets via aggregated DEX liquidity |
Technical Control | Black-box API; limited customization | White-label smart contracts; full logic customization |
Integration Complexity | Low (API-only) | Medium (requires smart contract integration) |
Time to Market | 1-2 weeks | 4-8 weeks for full deployment |
Upfront Development Cost | $0 (SaaS model) | $50K - $150K (one-time build) |
Long-Term Cost (Volume: $10M/yr) | $100K - $300K in fees | $10K - $50K in network/DEX fees |
Revenue Model Flexibility | Fixed by provider | Customizable (e.g., protocol fee integration) |
Security Model | Provider's centralized security | Your audited smart contracts + continuous monitoring |
how-we-deliver
PREDICTABLE, SECURE, AND SCALABLE
Our Integration & Delivery Process
A streamlined, four-phase approach designed for FinTechs and crypto startups. We deliver a production-ready liquidity solution for your checkout flow in weeks, not months, with enterprise-grade security and support.
01
1. Discovery & Architecture
We analyze your transaction volume, target assets, and user flow to design a bespoke integration. This includes selecting optimal AMMs, defining fee structures, and establishing security parameters.
2-3 days
Technical Scoping
Uniswap v3, Curve, PancakeSwap
Protocol Options
02
2. Smart Contract Development
Our engineers build and audit the core settlement and routing logic. We implement gas-efficient contracts for multi-chain swaps, secure fund custody, and real-time price feeds.
Solidity 0.8+
Development Standard
OpenZeppelin
Security Foundation
03
3. Integration & Testing
We provide SDKs and APIs for seamless frontend/backend integration. The system undergoes rigorous testing on testnets, including stress tests for high-volume checkout scenarios and security audits.
< 1 week
Avg. Integration Time
99.9% SLA
Testnet Uptime
04
4. Deployment & Monitoring
We manage the mainnet deployment and provide 24/7 monitoring dashboards. Our team handles liquidity provisioning, slippage optimization, and offers ongoing support for upgrades and new asset additions.
24/7
Performance Monitoring
< 2 weeks
Total Time to Live
security-compliance
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
We architect and deploy custom smart contracts that form the secure backbone of your application. Our development process is built on audited security patterns and a deep understanding of gas optimization, ensuring your logic is both robust and cost-effective.
From token standards to complex DeFi primitives, we deliver code you can stake your business on.
- Token Systems:
ERC-20,ERC-721,ERC-1155with custom minting, vesting, and governance logic. - DeFi Protocols: Automated market makers (AMMs), lending/borrowing pools, staking contracts, and yield aggregators.
- Enterprise Logic: Multi-signature wallets, access control systems, and custom business logic for real-world assets (RWA).
Our full-cycle development includes comprehensive unit testing, deployment scripting, and integration support. We provide clear, documented code and can facilitate third-party audits with leading firms like OpenZeppelin or ConsenSys Diligence.
Decentralized Exchange Liquidity for Checkout
Frequently Asked Questions
Get clear answers on how we integrate deep, secure liquidity into your payment flow.
We integrate a secure, non-custodial smart contract layer between your checkout and multiple decentralized exchanges (like Uniswap V3, Curve, 1inch). When a user initiates a payment, our system automatically routes the transaction through the most efficient liquidity pool for the token pair, ensuring the best price with minimal slippage. The user approves the swap, and the final payment token (e.g., USDC) is settled directly to your treasury wallet, all within a single user transaction.
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