Production-ready smart contracts built with security-first development and comprehensive audit support.
We deliver battle-tested smart contracts for tokens, DeFi protocols, and NFTs, ensuring your core logic is secure and gas-optimized from day one. Our development process includes:
Move from concept to mainnet with confidence, backed by our multi-layered security review.
Beyond initial development, we provide ongoing maintenance and monitoring. This includes incident response plans, dependency updates for Solidity versions, and performance tuning for new network upgrades. We ensure your contracts remain secure and functional as the ecosystem evolves.
Our API delivers the precise, compliant, and real-time tax calculations required for high-volume, multi-chain commerce. Built for technical teams who need reliability, not just features.
Instant tax calculation across 15+ EVM and non-EVM chains. Supports native gas tokens, stablecoins, and major ERC-20s. Eliminates manual lookups and settlement delays.
Automatically determines tax liability based on merchant location, customer location, and transaction type. Rules are updated weekly for global jurisdictions like the US, EU, and UK.
Consolidated API endpoints for all tax-related data—calculations, liabilities, and settlement summaries. Export-ready formats (CSV, JSON) simplify accounting and audit trails.
Built on fault-tolerant infrastructure with automatic failover. All data is encrypted in transit and at rest. SOC 2 Type II compliant with 24/7 monitoring.
Pre-built SDKs and widgets for React, Vue, and native mobile. Drop-in components handle the entire tax flow without disrupting your existing payment UI.
Programmatically calculate, collect, and remit taxes. Webhook-driven system notifies your backend for automated ledger updates, reducing manual reconciliation by 90%.
Our Multi-Chain Tax API delivers more than just regulatory coverage. It's a strategic tool that unlocks new revenue, reduces operational friction, and builds lasting trust with your users.
Automated, real-time tax calculation prevents revenue leakage from under-collection and ensures you never overpay to protocols. We handle complex multi-jurisdiction rules so you can focus on growth.
Integrate a production-ready tax engine in days, not months. Our unified API abstracts the complexity of 50+ chains and thousands of tokens, freeing your team to build core product features.
Every transaction is logged with an immutable, cryptographically verifiable audit trail. Our infrastructure is built with SOC 2 principles, ensuring data integrity for your financial reporting and compliance audits.
Instantly support users in new jurisdictions without engineering overhead. Our tax rule engine is continuously updated for global regulations, future-proofing your checkout for international scale.
Mitigate the risk of penalties, fines, and user disputes with legally-vetted calculations. Our compliance-first approach provides the documentation and certainty required by financial partners and auditors.
Provide transparent, accurate fee breakdowns at checkout. Clear communication builds user confidence, reduces support tickets on tax questions, and improves overall transaction completion rates.
Quantifying the engineering and financial trade-offs of developing a multi-chain tax calculation engine from scratch versus using our API.
| Factor | Build In-House | Chainscore API |
|---|---|---|
Initial Development Time | 6-12 months | 2-4 weeks |
Upfront Engineering Cost | $250K - $500K+ | $0 |
Covered Blockchains | 1-2 (your choice) | 15+ (Ethereum, Polygon, Arbitrum, Base, etc.) |
Tax Jurisdictions Supported | Requires legal research | 100+ (US, EU, UK, APAC) |
Smart Contract Audit & Security | High risk, $50K+ audit cost | Pre-audited, battle-tested logic |
Ongoing Maintenance & Updates | 1-2 FTEs for logic, data, compliance | Fully managed, zero dev overhead |
Time to First Revenue | Delayed 6+ months | Immediate upon integration |
Total Cost of Ownership (Year 1) | $400K - $750K+ | Starts at $15K/year |
Compliance Risk | Your liability | Our liability with audit trail |
Scalability to New Chains/Regions | Months of new development | Automatic, via API config |
We provide a structured, transparent process designed for technical teams. From initial API key to full production deployment, our focus is on minimizing your engineering overhead and accelerating your time-to-market.
A 2-hour technical deep-dive to map your existing payment stack, target blockchains (e.g., Ethereum, Solana, Polygon), and tax jurisdiction requirements. We deliver a detailed integration spec and timeline.
Get immediate access to our staging environment with testnet support. We provide client SDKs, comprehensive API documentation, and dedicated technical support to implement the core checkout flow.
Our integration undergoes internal security validation against OWASP Top 10 for Web3. We provide a compliance checklist for financial reporting (e.g., IRS 1099, EU DAC8) relevant to your operational regions.
We manage the seamless cutover to mainnet. Includes configuration for high-availability endpoints, real-time tax calculation engines, and setting up automated settlement and reporting dashboards.
Get clear answers on how our API simplifies tax compliance for your crypto payments.
Typical integration takes 1-2 weeks for standard e-commerce platforms. For custom platforms or complex multi-currency requirements, the timeline is 2-4 weeks. We provide a detailed project plan after the initial technical scoping call.
Our experts will offer a free quote and a 30min call to discuss your project.