Production-ready smart contracts built with security-first engineering for your Web3 application.
We architect and deploy custom, audited smart contracts that form the secure backbone of your dApp. Our development process is built on OpenZeppelin standards and rigorous testing to mitigate risk and ensure reliability from day one.
Deploy with confidence on EVM chains like Ethereum, Polygon, or Arbitrum in as little as 2-4 weeks.
Our development lifecycle delivers:
ERC-20, ERC-721, and custom logic.Our SDK is built on battle-tested infrastructure, ensuring your wallet application is reliable, secure, and ready to scale from day one.
Our Cross-Platform Wallet SDK is engineered to deliver measurable business advantages, accelerating your time-to-market while optimizing your development budget.
Launch a production-ready, multi-chain wallet in under 4 weeks with our pre-built, modular SDK. Eliminate 6+ months of in-house development and integration work.
Cut ongoing operational expenses by up to 70%. Our managed SDK handles key management, RPC failover, and gas optimization, removing the need for a dedicated backend team.
Access EVM, Solana, and Cosmos ecosystems from a single integration. Future-proof your product with our protocol-agnostic architecture, avoiding costly re-writes.
Building a multi-chain wallet SDK in-house requires significant, ongoing investment. This table compares the total cost of ownership and risk profile against using Chainscore's production-ready solution.
| Factor | Build In-House | Chainscore SDK |
|---|---|---|
Time to Market (Initial Release) | 6-12 months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $25K - $75K |
Annual Maintenance & Updates | $150K - $300K | $15K - $50K (SLA) |
Security & Audit Burden | High (Your Risk) | Low (Our Responsibility) |
Supported Chains (EVM) | 1-2 chains initially | Ethereum, Polygon, Arbitrum, Base, Optimism, Avalanche |
Non-EVM Chain Support | Separate, complex project | Solana, Aptos, Sui (Add-on) |
Team Size Required | 4-6 Senior Engineers | 1-2 Integrators |
Key Management Security | Your responsibility to build & audit | SOC 2 Type II compliant infrastructure |
Real-time Gas Optimization | Requires custom oracle integration | Built-in with multi-chain fee APIs |
Guaranteed Uptime SLA | None (your infrastructure) | 99.9% with 24/7 monitoring |
We deliver production-ready wallet SDKs through a proven, milestone-driven framework. This ensures technical alignment, predictable timelines, and a final product that meets your exact security and performance requirements.
We begin with a technical deep dive to define your target chains (EVM, Solana, Cosmos), user flows, and security posture. This phase delivers a comprehensive technical specification and architecture diagram, ensuring all stakeholders are aligned before a single line of code is written.
Our engineers build the secure wallet core using battle-tested libraries (ethers.js, web3.js, Solana Web3). We implement key management (HD wallets, MPC), transaction signing, and multi-chain RPC connectivity with built-in failover and rate limiting.
We deliver platform-specific SDK packages (React Native, Flutter, Web) with fully documented APIs and modular UI components. This includes seamless integration with your existing auth system, fiat on-ramps, and DApp browsers.
Every SDK undergoes rigorous internal security review and automated analysis. We facilitate third-party audits with firms like Trail of Bits or Quantstamp, providing you with a verifiable security report before launch.
We handle the full deployment pipeline: publishing to package managers (npm, pub.dev), setting up CI/CD, and providing exhaustive technical documentation, integration guides, and sample applications for your engineering team.
Your subscription includes proactive monitoring, SLA-backed support, and regular updates for new chain integrations, protocol upgrades, and security patches. We ensure your wallet infrastructure evolves with the ecosystem.
Your wallet is your users' gateway to Web3. We build with security-first principles, battle-tested libraries, and rigorous auditing to ensure asset protection and regulatory compliance from day one.
Every SDK module undergoes automated analysis, manual code review, and third-party audits by firms like CertiK or Quantstamp before deployment, with findings remediated and verified.
Our development and deployment processes adhere to SOC 2 Type II principles. We design wallet data flows and key management to support GDPR, CCPA, and other privacy regulations.
Integrated anomaly detection for suspicious transactions, phishing attempt alerts, and malicious DApp warnings. Provides actionable security dashboards for your ops team.
Answers to common technical and commercial questions about our wallet SDK development service.
Our standard engagement follows a 4-phase process: Discovery & Architecture (1 week), Core SDK Development (2-3 weeks), Integration & Testing (1-2 weeks), and Deployment & Handoff (1 week). A typical project for a multi-chain wallet with core features deploys in 5-7 weeks. We provide weekly demos and a dedicated project manager for transparency.
Our experts will offer a free quote and a 30min call to discuss your project.