We architect and deploy custom smart contracts that form the operational backbone of your Web3 product. Our development process is built on Solidity 0.8+ and OpenZeppelin standards, ensuring security and audit-readiness from day one.
LABS
Services
Legacy System Payment Gateway Upgrade
Integrate Bitcoin and Lightning Network micropayments into your existing billing platform. Enable new revenue models like streaming payments and pay-per-use without a costly, full-stack rebuild.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Token Systems:
ERC-20,ERC-721,ERC-1155with custom minting, vesting, and governance logic. - DeFi Protocols: Automated market makers (AMMs), staking pools, yield aggregators, and lending vaults.
- Enterprise Logic: Multi-signature wallets, access-controlled registries, and verifiable credential systems.
- Gas Optimization: Code reviewed for >30% gas reduction on common operations.
We deliver fully tested, documented, and mainnet-ready contracts in 2-4 weeks, backed by a 99.9% uptime SLA for deployed systems.
key-features-cards
ENTERPRISE-READY INFRASTRUCTURE
What Our Bitcoin Payment Gateway Delivers
We replace your legacy payment stack with a modern, secure Bitcoin layer that integrates seamlessly, reduces costs, and unlocks new revenue streams.
01
Seamless API Integration
Replace legacy gateways with a single RESTful API. We handle the full integration, ensuring compatibility with your existing e-commerce platform, ERP, or custom software.
< 2 weeks
Average Integration Time
99.9%
API Uptime SLA
02
Real-Time Settlement & Reporting
Eliminate multi-day settlement delays. Get instant on-chain confirmation and access a unified dashboard for real-time transaction tracking, reconciliation, and financial reporting.
< 10 minutes
Average Settlement Time
24/7
Dashboard Access
03
Enterprise-Grade Security & Compliance
Built with institutional security standards. Features include multi-signature wallets, non-custodial fund flows, automated AML screening, and comprehensive audit trails for regulatory compliance.
SOC 2 Type II
Compliance Framework
0
Security Incidents
04
Dynamic Fee Optimization
Intelligent transaction batching and fee estimation algorithms minimize on-chain costs. Automatically route payments through the most efficient channels to protect your margins.
40-60%
Avg. Fee Reduction
Real-time
Fee Estimation
05
Global Payouts & Liquidity Management
Send Bitcoin payments globally without correspondent banks. Our managed liquidity pools and direct on-ramp/off-ramp partnerships simplify treasury management for cross-border operations.
150+
Supported Countries
< 1 hour
Payout Processing
06
Dedicated Technical Support
Get a dedicated solutions engineer and 24/7 technical support. We provide ongoing maintenance, protocol upgrades, and strategic guidance as the Bitcoin ecosystem evolves.
< 15 min
Avg. Response Time
24/7/365
Support Coverage
benefits
TANGIBLE ROI
Business Outcomes: Beyond Technical Integration
Upgrading your payment gateway is a technical project, but its success is measured in business results. We deliver the infrastructure that directly drives revenue, reduces costs, and unlocks new markets.
01
Revenue Acceleration
Unlock new revenue streams by accepting crypto payments and stablecoins. Reduce settlement times from days to minutes, improving cash flow and enabling real-time financial operations.
24/7/365
Payment Settlement
Minutes
vs. Days for ACH
02
Cost & Risk Reduction
Drastically cut transaction fees and eliminate intermediary costs associated with traditional payment processors. Our audited smart contracts and secure architecture mitigate fraud and chargeback risks.
> 60%
Lower Fees
Zero
Chargeback Risk
03
Market Expansion
Instantly access the global Web3 customer base. Our compliant, multi-chain gateway supports payments from any region, removing geographic and banking barriers to growth.
Global
Market Access
Multi-Chain
Support
04
Operational Efficiency
Automate reconciliation and reporting with on-chain transparency. Replace manual back-office processes with programmable settlement logic, freeing your team for strategic work.
Automated
Reconciliation
Real-time
Audit Trail
Legacy Payment Gateway Modernization
Build vs. Buy vs. Upgrade: The Strategic Choice
Compare the strategic paths for modernizing your payment infrastructure with blockchain rails. We recommend the Chainscore Upgrade for its optimal balance of speed, security, and cost.
| Key Factor | Build In-House | Buy Off-the-Shelf | Upgrade with Chainscore |
|---|---|---|---|
Time to Live Production | 9-18 months | 3-6 months | 4-12 weeks |
Initial Development Cost | $300K - $1M+ | $50K - $200K (licensing) | $75K - $250K (project) |
Smart Contract Security | High Risk (unaudited) | Medium Risk (generic audit) | Low Risk (custom, audited) |
Custom Business Logic | Full Control | Limited/None | Tailored Integration |
Multi-Chain Support (EVM, Solana) | Your team builds | Vendor-dependent | Built-in & Managed |
Ongoing Maintenance & Updates | Full team required | Vendor roadmap | Optional SLA from $5K/month |
Compliance (Travel Rule, KYC) | Build from scratch | Bundled, may not fit | Integrated, configurable |
Settlement Finality | Your implementation | Vendor SLA (< 2 min) | Guaranteed (< 2 sec on L2s) |
Total Cost of Ownership (Year 1) | $500K - $1.5M+ | $150K - $400K | $150K - $350K |
Recommended For | Very large teams with deep blockchain expertise | Non-technical teams needing a basic solution fast | Technical FinTechs scaling with security & speed |
how-we-deliver
PREDICTABLE, LOW-RISK MIGRATION
Our 4-Phase Delivery Process
We de-risk your payment gateway modernization with a structured, transparent methodology proven for financial systems. Each phase delivers clear value and measurable progress.
01
Phase 1: Discovery & Architecture
We conduct a deep technical audit of your legacy system and design a future-proof blockchain architecture. This includes a detailed migration roadmap, API specification, and security threat model.
Deliverables: Technical audit report, system architecture diagrams, and a phased implementation plan.
2-3 weeks
Typical Duration
100%
Clarity on Scope
02
Phase 2: Core Smart Contract Development
Our engineers build the secure, auditable payment logic on-chain. We develop and test core settlement contracts, multi-signature wallets, and oracle integrations for real-world data.
Deliverables: Production-ready Solidity/Vyper contracts, unit/integration test suites, and initial security review.
4-6 weeks
Development Sprint
OpenZeppelin
Security Foundation
03
Phase 3: Integration & Staging
We seamlessly integrate the new blockchain layer with your existing backend and frontend. This includes building secure relayers, webhook systems, and conducting end-to-end testing in a staging environment identical to production.
Deliverables: Fully integrated staging environment, load testing results, and user acceptance testing (UAT) plan.
3-4 weeks
Integration Window
99.9%+
Test Coverage
04
Phase 4: Deployment & Monitoring
We manage the production deployment with zero-downtime strategies and establish comprehensive monitoring. Post-launch, we provide 24/7 system health dashboards, alerting, and performance optimization.
Deliverables: Live production system, monitoring dashboard access, and a detailed handover document.
1-2 weeks
Go-Live & Ramp
24/7
Post-Launch Support
security-compliance
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
We architect, develop, and audit custom Solidity/Rust smart contracts that form the backbone of your protocol. Our focus is on security-first development, gas optimization, and upgradeable architecture to protect assets and ensure long-term viability.
From token standards to complex DeFi logic, we deliver battle-tested code ready for mainnet deployment.
- Custom Logic: DEXs, lending protocols, NFT marketplaces, and bespoke
ERC-20/ERC-721extensions. - Security & Audits: Development with
OpenZeppelinpatterns, followed by internal review and preparation for third-party audits. - Full Lifecycle: Development, testing (
Hardhat/Foundry), deployment scripting, and post-launch monitoring support.
Legacy Payment Gateway Upgrade
Frequently Asked Questions
Get clear answers on upgrading your payment infrastructure to Web3. We address common technical, timeline, and security questions from CTOs and engineering leads.
A standard upgrade from a legacy system (e.g., Stripe, PayPal) to a Web3-native gateway takes 4-8 weeks from kickoff to production. This includes 1-2 weeks for architecture design, 2-4 weeks for core development and smart contract auditing, and 1-2 weeks for integration testing and deployment. Complex multi-chain or high-frequency trading requirements can extend this timeline.
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