We architect, develop, and audit custom Solidity/Rust contracts that form the backbone of your protocol. Our focus is on security-first development, leveraging battle-tested patterns from OpenZeppelin and formal verification to mitigate risks before deployment.
Non-Custodial Payment Processor Development
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
From tokenomics to governance, we translate your business logic into immutable, gas-optimized code.
- Token Systems: Custom
ERC-20,ERC-721, andERC-1155implementations with advanced features like vesting, minting controls, and tax mechanics. - DeFi Primitives: Automated Market Makers (AMMs), lending/borrowing pools, staking contracts, and yield aggregators.
- Enterprise Logic: Multi-signature wallets, upgradeable proxy patterns, and cross-chain interoperability modules.
- Full Audit Trail: Every contract undergoes internal review and is prepared for third-party audits from firms like
CertiKorQuantstamp.
Core Architecture of Our Non-Custodial Gateways
Our modular, enterprise-grade gateway architecture provides the foundational infrastructure for secure, scalable, and compliant payment processing. Each component is designed to eliminate single points of failure and integrate seamlessly with your existing systems.
Decentralized Key Management
Leverage MPC (Multi-Party Computation) and TSS (Threshold Signature Scheme) technology to ensure private keys are never stored in a single location. This eliminates the custodial risk of a single point of compromise while maintaining transaction signing authority.
Client Value: Achieve bank-grade security without the operational overhead of managing HSMs or complex key ceremonies.
Multi-Chain Transaction Engine
A unified API layer that abstracts away blockchain complexity, supporting EVM chains (Ethereum, Polygon, Arbitrum), Solana, and Bitcoin. Features include nonce management, gas optimization, and real-time fee estimation.
Client Value: Process payments across any major blockchain with a single integration, reducing development time by 70%.
Real-Time Risk & Compliance Layer
Automated screening against OFAC/SDN lists, transaction pattern analysis, and configurable rules engines for AML/KYC compliance. All checks are performed off-chain before submission to the mempool.
Client Value: Stay compliant with global regulations automatically, reducing manual review workload and mitigating sanction risks.
High-Availability Node Infrastructure
Globally distributed, load-balanced RPC nodes with automatic failover, built on AWS and GCP. We manage node health, upgrades, and synchronization to guarantee uptime and consistent performance.
Client Value: Eliminate infrastructure headaches and ensure 99.9% payment processing availability with our fully managed service.
Webhook & Event Streaming
Instant, reliable delivery of payment confirmations, failures, and on-chain events via webhooks or direct streaming to your data warehouse (Snowflake, BigQuery). Includes idempotency keys and retry logic.
Client Value: Build real-time user experiences and automate back-office reconciliation with guaranteed event delivery.
Enterprise Dashboard & APIs
Complete programmatic control via REST APIs and GraphQL, paired with a dashboard for transaction monitoring, reporting, and configuration. Role-based access control (RBAC) for team management.
Client Value: Empower your finance and developer teams with the tools to operate, audit, and scale your payment flows independently.
Business Outcomes: Beyond Technical Architecture
Our non-custodial payment processor delivers more than just code. We architect solutions that directly drive your business growth, reduce operational overhead, and build user trust through verifiable performance.
Accelerated Time-to-Market
Deploy a production-ready, audited payment processor in under 4 weeks. Our modular architecture and battle-tested smart contract libraries eliminate months of development and security review cycles.
Enterprise-Grade Security & Compliance
Build on a foundation of trust. Every core smart contract is audited by leading firms like Spearbit or Code4rena, with built-in compliance hooks for KYC/AML and regulatory reporting requirements.
Substantial Cost Reduction
Eliminate the overhead of managing payment rails and custody. Our gas-optimized contracts and multi-chain settlement layer reduce transaction fees by up to 40% compared to custom-built solutions.
Uninterrupted Global Scale
Process millions in daily volume with confidence. Our system guarantees 99.95% uptime SLA and supports instant settlements across Ethereum, Polygon, and Arbitrum from day one.
Seamless User Onboarding
Convert users, not confuse them. We integrate fiat on/off-ramps (like Stripe, MoonPay) and social logins to reduce onboarding friction, increasing conversion rates by over 25%.
Future-Proof Architecture
Adapt to market changes without rewrites. Our processor supports modular upgrades, new token standards (ERC-20, 721, 1155), and cross-chain expansions via CCIP or LayerZero.
Non-Custodial vs. Traditional Custodial Payment Processors
A technical breakdown of how Chainscore's non-custodial payment infrastructure differs from legacy custodial models in security, compliance, and operational overhead.
| Key Factor | Traditional Custodial Processor | Chainscore Non-Custodial Processor |
|---|---|---|
Funds Custody & Risk | Processor holds user funds. High counterparty and insolvency risk. | User retains control via smart contracts. Zero counterparty risk. |
Regulatory Onboarding | Full KYC/AML per user required. High friction, slow onboarding. | Business-level compliance. User onboarding can be permissionless. |
Settlement Finality | 1-3 business days for bank settlement. Risk of chargebacks. | On-chain finality in seconds. Irreversible transactions. |
Integration Complexity | Complex bank partnerships, PCI-DSS compliance, legacy APIs. | Web3-native integration. Connect via SDKs and smart contract wallets. |
Operational Cost | High: Interchange fees, network fees, compliance overhead. | Predictable: Transparent gas costs + service fee. No hidden percentages. |
Fraud & Chargeback Liability | Merchant bears liability for fraud and chargebacks. | Smart contract logic governs releases. No fraudulent chargebacks. |
Developer Experience | REST APIs, webhooks. Limited to fiat currencies. | TypeScript/Go SDKs, Subgraph for indexing. Native multi-chain crypto. |
Time to Live Deployment | 3-6 months for full integration and compliance checks. | 2-4 weeks to integrate and deploy a custom payment flow. |
Our Delivery Process: From Concept to Live Settlement
A structured, milestone-driven approach that de-risks your project and ensures your non-custodial payment processor launches on time, on budget, and with enterprise-grade security.
Discovery & Architecture
We conduct a technical deep-dive to define your payment flows, token standards (ERC-20, ERC-777), and regulatory requirements. We deliver a detailed technical specification and architecture diagram for your review.
Smart Contract Development
Our engineers build your core payment, escrow, and settlement contracts using Solidity 0.8+ and OpenZeppelin libraries. Every line is written with gas optimization and security as the priority.
Security Audit & Testing
Your contracts undergo rigorous unit, integration, and scenario testing. We facilitate an independent audit with a top-tier firm (e.g., Trail of Bits, Quantstamp) and implement all critical recommendations before deployment.
Deployment & Integration
We deploy the audited contracts to your chosen mainnet (Ethereum, Polygon, Arbitrum) and integrate them with your front-end and backend systems, including wallet providers (MetaMask, WalletConnect) and oracles.
Monitoring & Support
We provide 24/7 monitoring of contract activity, transaction success rates, and security events. You receive a dedicated dashboard and SLA-backed support for incident response and upgrades.
Scale & Optimize
Post-launch, we work with you to analyze performance data, optimize gas costs, and plan the next phase—whether it's adding new payment methods, cross-chain functionality, or advanced features like account abstraction.
Typical 12-Week Development Timeline & Deliverables
A structured roadmap for delivering a secure, scalable non-custodial payment processor, outlining key milestones and deliverables for each phase.
| Phase & Deliverable | Weeks 1-4 (Foundation) | Weeks 5-8 (Integration) | Weeks 9-12 (Launch) |
|---|---|---|---|
Architecture & Smart Contracts | System design, ERC-20/ERC-4337 payment logic, multi-sig wallet contracts | Gas optimization, cross-chain bridge integration (LayerZero/CCIP) | Final security audit report, deployment scripts |
Backend & API Layer | Node.js/Typescript API skeleton, database schema for transaction ledger | Webhook system, rate limiting, API key management, integration tests | Production API documentation, load testing results |
Frontend SDK & Dashboard | React SDK for payment widgets, admin dashboard wireframes | Real-time balance display, transaction history, user management UI | White-label theming, developer documentation, demo application |
Security & Compliance | Initial threat model, OpenZeppelin library integration | Penetration testing, KYC/AML provider integration (optional) | CertiK or Halborn audit completion, bug bounty program setup |
Deployment & Infrastructure | Testnet deployment (Sepolia, Mumbai), CI/CD pipeline | Mainnet staging environment, monitoring with Prometheus/Grafana | Multi-chain mainnet deployment, 99.9% uptime SLA configuration |
Support & Handoff | Weekly technical syncs, architecture review document | Integration support for your team, troubleshooting guide | Production launch support, full technical documentation handoff |
Frequently Asked Questions on Non-Custodial Payments
Get clear, direct answers to the most common questions from CTOs and product leaders evaluating non-custodial payment infrastructure.
For a standard integration with major EVM chains (Ethereum, Polygon, Arbitrum), deployment typically takes 2-4 weeks from kickoff to production. This includes smart contract deployment, backend API integration, and security review. Complex requirements like multi-chain atomic swaps or custom compliance modules can extend this to 6-8 weeks. We provide a detailed project plan within the first 3 business days.
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