We architect and deploy custom smart contracts that form the backbone of your Web3 product. Our development process is built on security-first principles, utilizing OpenZeppelin libraries and rigorous internal audits before deployment.
LABS
Services
Wallet SDK Biometric Integration Services
End-to-end integration of secure biometric authentication (Face ID, Touch ID, passkeys) into existing wallet SDKs. We deliver plug-and-play modules that reduce user onboarding friction by 70% and integrate in 2-4 weeks.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
- End-to-End Development: From initial logic design on
Solidity 0.8+to deployment and verification on your target chain (EVM, Solana, etc.). - Comprehensive Testing: Unit, integration, and scenario testing with
HardhatorFoundryto ensure 99.9% reliability. - Gas Optimization: Expert-level code review to minimize transaction costs and maximize user efficiency.
We deliver contracts you can trust, reducing your time-to-market from months to as little as 2-4 weeks for an MVP.
Our team specializes in standard and complex tokenomics, including ERC-20, ERC-721, ERC-1155, staking mechanisms, multi-signature wallets, and custom DeFi primitives.
key-features-cards
TURNKEY SECURITY
What Our Biometric Integration Delivers
We deliver production-ready biometric authentication that accelerates your wallet's time-to-market while meeting the highest security and user experience standards.
01
Platform-Native SDKs
Seamless integration with iOS Face ID/Touch ID and Android BiometricPrompt. We handle OS-level complexities, ensuring a native, intuitive user experience that respects platform-specific security models.
iOS & Android
Platforms
< 1 sec
Auth Time
02
Secure Key Management
Private keys are encrypted and stored within the device's Secure Enclave (iOS) or Hardware-backed Keystore (Android). Keys never leave the device, eliminating a critical attack vector for your users.
Hardware-backed
Key Storage
Zero Exposure
Private Keys
03
Compliance & Standards
Our implementation follows FIDO2/WebAuthn principles and is designed to meet regulatory requirements for strong customer authentication (SCA), providing a foundation for global compliance.
FIDO2 Principles
Standard
SCA-Ready
Compliance
04
Frictionless User Onboarding
Reduce sign-up and transaction abandonment. Users can secure their wallet and authorize transactions with a glance or fingerprint, removing the barrier of seed phrase management for mainstream adoption.
90%+
Auth Success Rate
2 Clicks
To Transact
05
Fallback & Recovery Protocols
Robust fallback to PIN/password and clear user-guided recovery flows. We ensure users never lose access to their assets, balancing ultimate security with practical key management.
Guided Flow
Recovery
100%
Access Guarantee
06
Enterprise-Grade Audit Trail
Every biometric authentication event is cryptographically logged. Provides non-repudiation and creates an immutable audit trail for transaction signing and compliance reporting.
Immutable
Logs
Non-Repudiation
Proof
benefits
MEASURABLE IMPACT
Business Outcomes for Your Product
Our biometric integration SDK delivers tangible results that accelerate your product roadmap and build user trust. Here's what you can expect.
01
Accelerated User Onboarding
Reduce sign-up friction by 70%+ with seamless biometric authentication. Users can create a secure wallet and start transacting in under 30 seconds, directly from your app.
> 70%
Faster Onboarding
< 30 sec
First Transaction
02
Enterprise-Grade Security
Leverage hardware-backed keystores (Android Keystore, iOS Keychain) and FIDO2/WebAuthn standards. Private keys never leave the secure enclave, eliminating phishing and keylogging risks.
Zero
Key Exposure
FIDO2 Certified
Compliance
03
Reduced Support & Fraud Costs
Eliminate password reset tickets and seed phrase recovery requests. Biometric authentication cuts account takeover fraud by preventing credential theft, directly lowering operational overhead.
~90%
Fewer Support Tickets
Near Zero
ATO Fraud
04
Higher User Retention & Activity
One-tap authentication removes the biggest UX barrier in crypto. Enjoy higher daily active users (DAU) and increased transaction frequency with a frictionless experience.
40%+
Higher DAU
2.5x
More TXs/User
05
Faster Time-to-Market
Deploy a production-ready, cross-platform (iOS/Android/Web) biometric wallet module in weeks, not months. We handle platform-specific complexities and security audits.
2-4 weeks
Integration Time
Multi-Platform
Single SDK
06
Regulatory & Compliance Ready
Built with privacy-by-design. Our SDK supports GDPR/CCPA-compliant data handling and provides audit trails for transaction signing, simplifying compliance for FinTechs.
GDPR/CCPA
Compliant
Full Audit Trail
Built-in
From Kickoff to Production
Typical 4-Week Integration Timeline
Our proven delivery framework for integrating biometric authentication into your wallet SDK, ensuring security and a seamless user experience.
| Phase & Deliverables | Week 1 | Week 2 | Week 3 | Week 4 |
|---|---|---|---|---|
Discovery & Architecture | Project kickoff Requirements finalization | Technical design review Security audit scope defined | ||
Core Integration | SDK integration begins Biometric module setup | End-to-end flow testing Local environment validation | ||
Security & Testing | Penetration testing Vulnerability assessment | Audit report delivery Remediation support | ||
Deployment & Go-Live | Staging deployment Production rollout Team handover | |||
Key Milestone | Architecture Signed Off | First Biometric Auth Demo | Security Audit Complete | Live in Production |
supported-platforms
PROVEN INTEROPERABILITY
Platforms & SDKs We Integrate With
Our biometric wallet SDKs are built to integrate seamlessly with the industry's leading platforms, ensuring maximum reach and a frictionless user experience from day one.
06
Custom RPC & Chain Integration
Seamless support for any EVM or non-EVM chain. Our SDKs are protocol-agnostic, with pre-built modules for Ethereum, Polygon, Solana, and Aptos, plus rapid custom integration for your specific L1/L2.
EVM & Non-EVM
Chains
< 2 Weeks
Custom Integration
security-approach
FULL-STACK ENGINEERING
Custom Blockchain Development
Build secure, scalable blockchain applications from concept to mainnet deployment.
We architect and build production-grade blockchain systems tailored to your business logic. Our full-cycle development delivers custom smart contracts, decentralized applications (dApps), and enterprise-grade node infrastructure with 99.9% uptime SLAs.
- Smart Contract Development: Audited
Solidity/Rustcontracts usingOpenZeppelinstandards forEVM/Solana/Cosmos. - dApp & Frontend: React/Next.js interfaces with
ethers.js/wagmiintegration and seamless wallet connectivity. - Backend & APIs: Scalable indexers,
The Graphsubgraphs, and secure relayers for off-chain logic. - Deployment & DevOps: Automated CI/CD, mainnet deployment, and 24/7 monitoring with
Prometheus/Grafana.
Go from spec to live product in 4-8 weeks. We handle the technical complexity so you can focus on growth and user acquisition.
Wallet SDK Biometric Integration
Frequently Asked Questions
Get clear answers on our process, security, and timelines for integrating biometric authentication into your Web3 wallet.
A standard integration with Face ID, Touch ID, or Android BiometricPrompt takes 2-4 weeks from kickoff to production deployment. This includes architecture review, secure key management implementation, platform-specific UI/UX integration, and comprehensive testing. Complex multi-chain or custom security models may extend this timeline, which we scope during the initial technical assessment.
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