We architect and deploy production-grade Solidity and Rust smart contracts for DeFi, NFTs, and enterprise applications. Our development process is built on OpenZeppelin standards and formal verification principles to ensure security and gas efficiency from day one.
LABS
Services
SaaS Subscription Billing Gateway
We build automated, on-chain recurring billing systems for SaaS companies. Leverage stablecoins for predictable revenue, lower fees, and global reach with built-in proration, trial management, and failed payment handling.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built to your exact specifications, from concept to mainnet deployment.
- Full Lifecycle Support: From initial design and
Foundry/Hardhattesting to final audit and mainnet deployment. - Security-First: Every contract undergoes internal review and is prepared for third-party audits by firms like Quantstamp or CertiK.
- Gas Optimization: We specialize in writing low-cost code, often reducing transaction fees by 30-50% versus unoptimized implementations.
We don't just write code; we deliver audit-ready, mainnet-safe contracts that form the unbreakable backbone of your Web3 application.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core Features of Your On-Chain Billing Engine
Our modular billing engine is built for high-volume, secure, and compliant subscription management. We handle the complex infrastructure so you can focus on your product.
benefits
DRIVE GROWTH, REDUCE COSTS
Business Outcomes: Beyond Just Accepting Crypto
Our SaaS Subscription Billing Gateway delivers measurable business results, from accelerated revenue to hardened security. See the tangible outcomes for your finance and engineering teams.
01
Accelerate Revenue Onboarding
Go live with subscription billing in under 2 weeks, not months. Our pre-built integrations with Stripe, Chargebee, and Paddle, combined with multi-chain crypto support, let you capture new revenue streams immediately.
< 2 weeks
Time to Launch
7+
Payment Rails
02
Slash Payment Processing Costs
Reduce transaction fees by up to 80% compared to traditional card processors. Our optimized on-chain settlement and batched transactions minimize gas costs for high-volume SaaS businesses.
Up to 80%
Fee Reduction
< $0.01
Avg. Settlement Cost
03
Eliminate Revenue Leakage
Guarantee payment finality and eliminate chargeback fraud. Smart contracts enforce subscription terms automatically, ensuring you get paid for every billing cycle without manual reconciliation.
0%
Chargeback Risk
100%
Payment Finality
04
Unlock Global Market Access
Accept payments from 150+ countries without FX hassles or regional gateways. Crypto-native users and unbanked populations become immediate, high-LTV customers for your SaaS product.
150+
Countries
24/7
Settlement
05
Future-Proof Your Tech Stack
Built on audited smart contracts (OpenZeppelin) with enterprise-grade APIs. Scale seamlessly from startup to enterprise with 99.9% uptime SLA and dedicated engineering support.
99.9%
Uptime SLA
< 100ms
API Latency
06
Gain Real-Time Financial Insights
Track MRR, churn, and customer LTV across fiat and crypto with unified analytics. Make data-driven decisions with dashboards that sync with your existing BI tools.
Real-time
Revenue Data
Unified
Fiat/Crypto View
Structured for predictable growth
Phased Development Tiers
Choose the right engagement model for your SaaS billing gateway, from initial launch to enterprise scale.
| Feature / Deliverable | Launch Tier | Scale Tier | Enterprise Tier |
|---|---|---|---|
Custom Smart Contract Suite | |||
On-Chain Revenue Dashboard | |||
Multi-Currency & Stablecoin Support | USDC, USDT | 5+ currencies | Custom whitelist |
Gas Optimization & Fee Abstraction | Basic | Advanced (sponsorship) | Custom (account abstraction) |
Integration Support | 1 chain | Up to 3 chains | Unlimited chains |
Smart Contract Audit | Automated tools | Manual review + report | Full audit by 3rd party |
Deployment & DevOps | Assisted self-service | Full deployment support | White-glove deployment |
Monitoring & Alerting | Basic health checks | 24/7 monitoring + alerts | Custom dashboards & SLA |
Support Response Time | Business hours | < 12 hours | < 1 hour (24/7) |
Typical Timeline | 4-6 weeks | 8-12 weeks | Custom |
Typical Investment | $25K - $50K | $75K - $150K | Custom |
how-we-deliver
ENGINEERED FOR ENTERPRISE
Our Build Methodology: Secure, Audited, Scalable
We build your on-chain billing gateway with the rigor and reliability your business demands. Every component is designed for production from day one.
01
Security-First Architecture
Smart contracts built on Solidity 0.8+ with OpenZeppelin libraries and custom security patterns. Includes role-based access control, reentrancy guards, and comprehensive input validation.
Zero
Critical Vulnerabilities
100%
Test Coverage
02
Third-Party Audited Code
All core smart contracts undergo mandatory audits by leading security firms before deployment. We provide verifiable audit reports to build trust with your users and stakeholders.
2+
Independent Audits
Certified
By Industry Leaders
03
Gas-Optimized Execution
We implement gas-efficient patterns and state management to minimize transaction costs for you and your customers, directly impacting your unit economics and user adoption.
40-60%
Gas Savings
< $0.50
Avg. Tx Cost
04
Modular & Upgradeable Design
Built using proxy patterns (UUPS/Transparent) for seamless, secure upgrades. Add new payment tokens, billing models, or features without migrating user data or breaking existing integrations.
< 1 hour
Safe Upgrades
Zero Downtime
During Updates
05
Multi-Chain Ready Foundation
Architected for deployment on Ethereum, Polygon, Arbitrum, and other EVM-compatible L2s. We handle chain-specific optimizations and bridge integrations for a unified billing experience.
5+
Supported Chains
Single Codebase
For All Deployments
06
Comprehensive Monitoring & Alerts
Proactive system monitoring with real-time dashboards for transaction success rates, revenue metrics, and security events. Get instant alerts for any anomalies.
24/7
Monitoring
< 5 min
Alert Response SLA
The Infrastructure Decision for FinTech Leaders
Build vs. Buy: Chainscore vs. Legacy & DIY
A quantitative comparison of the time, cost, and risk involved in building a custom Web3 billing gateway versus implementing Chainscore's enterprise-ready solution.
| Key Factor | Build In-House | Legacy Payment Provider | Chainscore |
|---|---|---|---|
Time to First Revenue | 6-12 months | 3-6 months | 2-4 weeks |
Upfront Development Cost | $250K - $500K+ | $50K - $100K (integration) | $0 |
Smart Contract Security | High Risk (unaudited) | Not Applicable | Low Risk (audited by Spearbit) |
Multi-Chain Support | Custom per chain (high effort) | Limited (EVM only via bridges) | Native (Ethereum, Polygon, Arbitrum, Base, Solana) |
Recurring & Usage Billing | Build from scratch | Basic cron jobs + manual reconciliation | Pre-built engine with proration & metering |
Real-Time Revenue Analytics | Custom dashboard development | Batch reports (24h delay) | Live dashboard with Webhook APIs |
Ongoing Maintenance & DevOps | Full-time engineering team | Vendor SLAs for core service only | Fully managed infrastructure, 99.9% SLA |
Total Cost of Ownership (Year 1) | $300K - $600K+ | $75K - $150K+ | $60K - $120K (predictable SaaS) |
Compliance (Tax, KYC/AML) | Your legal team's responsibility | Basic KYC, no crypto-specific tax | Built-in tools for VAT/GST & regulatory checks |
SaaS Billing Gateway
Frequently Asked Questions
Common questions from CTOs and product leads about implementing a Web3-native subscription billing solution.
A production-ready, custom SaaS subscription billing gateway typically deploys in 3-6 weeks. This includes smart contract development, integration with your frontend, and comprehensive testing. For standard integrations using our pre-audited modules, deployment can be as fast as 2 weeks. The timeline scales with complexity, such as multi-chain support or custom tokenomics.
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