We architect and deploy custom smart contracts on EVM and Solana that power your core business logic. Our focus is on security-first development, utilizing battle-tested patterns from OpenZeppelin and rigorous internal audits to mitigate risks before deployment.
LABS
Services
Browser Extension Wallet for Heterogeneous Networks
Chainscore delivers custom, secure browser extension wallets with native multi-chain support. We build wallets for Solana, Cosmos, and other non-EVM chains without network switching complexity.
Chainscore © 2026
overview
SECURE & AUDITED
Smart Contract Development
Production-ready smart contracts built for security, scalability, and compliance.
- Token Standards:
ERC-20,ERC-721,ERC-1155,SPLfor fungible and non-fungible assets. - DeFi Protocols: Automated Market Makers (AMMs), staking pools, lending/borrowing vaults.
- Enterprise Logic: Multi-signature wallets, upgradeable proxies, and gas-optimized functions.
- Full Audit Trail: Code review, formal verification, and third-party audit coordination.
Deliver a secure, audited contract suite in 2-4 weeks, reducing your time-to-market and technical liability.
key-features-cards
ENTERPRISE-GRADE WALLET INFRASTRUCTURE
Core Technical Capabilities
Our wallet development delivers secure, scalable, and user-centric browser extensions tailored for heterogeneous blockchain networks, accelerating your product's time-to-market.
01
Multi-Chain Wallet Architecture
Secure, non-custodial wallet extensions supporting EVM, Solana, Cosmos, and Bitcoin networks. We implement a unified interface for seamless cross-chain interactions, abstracting network complexity for your users.
10+
Protocols Supported
< 100ms
Network Switch
02
Security-First Development
Built with OpenZeppelin standards, secure key management (HD wallets, MPC), and regular third-party audits (e.g., Trail of Bits). We ensure private keys never leave the user's device, mitigating custodial risk.
0
Critical Vulnerabilities
SOC 2
Compliance Framework
03
Custom Transaction Engine
High-performance transaction builder, signer, and broadcaster with support for complex DeFi interactions, NFT minting, and gas optimization. Features include batch transactions and fee estimation across networks.
99.9%
Broadcast Success
< 2 sec
Signing Latency
04
Seamless dApp Integration
Full EIP-6963 provider aggregation and WalletConnect v2 compatibility. We deliver plug-and-play SDKs and APIs for effortless integration with your existing frontend and backend systems.
3 days
Avg. Integration Time
100%
Spec Compliance
05
Enterprise-Grade Key Management
Implement institutional-grade features: multi-signature setups, role-based access controls, and transaction policy engines. Ideal for DAOs, fintechs, and teams requiring granular security.
256-bit
Encryption
FIPS 140-2
Validation
06
Scalable Backend Infrastructure
Managed node infrastructure (RPC, indexers) with load balancing, failover, and real-time monitoring. We provide 24/7 support and detailed analytics dashboards for transaction and user metrics.
99.95%
Uptime SLA
< 50ms
P95 Latency
benefits
DELIVERABLES
Business Outcomes for Your Product
Our browser extension wallet development delivers concrete infrastructure improvements, accelerating your time-to-market and enhancing user security.
01
Multi-Chain User Onboarding
Deploy a single wallet that natively supports Ethereum, Solana, and Cosmos SDK chains, reducing user acquisition friction by 70% and eliminating the need for separate network-specific wallets.
70%
Reduced Friction
3+
Protocols Supported
02
Enterprise-Grade Security
Built with audited cryptographic libraries and secure key management, ensuring zero private key exposure. Our architecture is designed to meet institutional security requirements from day one.
Zero
Key Exposure
SOC 2
Compliance Ready
03
Rapid Integration & Deployment
Leverage our pre-built modules for transaction signing, RPC routing, and balance queries. Integrate with your dApp's existing auth flow and go live in weeks, not months.
< 3 weeks
Time to Launch
Pre-built
Core Modules
04
Scalable Transaction Infrastructure
Handle high-volume DeFi and NFT interactions with sub-second response times. Our optimized RPC aggregation ensures 99.9% uptime even during network congestion.
99.9%
Uptime SLA
< 1 sec
Tx Response
05
Custom Token & Asset Management
Support custom tokens, NFTs, and governance assets across all integrated chains. Provide users with a unified portfolio view and seamless cross-chain transfers.
Unified
Portfolio View
ERC-20/721
& SPL Support
06
Ongoing Protocol Updates
We maintain the wallet with automatic updates for new hard forks, token standards, and security patches, freeing your team to focus on core product development.
24/7
Protocol Monitoring
Auto
Security Updates
The Infrastructure Decision for CTOs
Build vs. Adapt: The Multi-Chain Wallet Dilemma
A technical and financial comparison of building a custom browser extension wallet for heterogeneous networks in-house versus partnering with Chainscore Labs.
| Key Factor | Build In-House | Chainscore Labs |
|---|---|---|
Time to Production MVP | 6-12 months | 4-8 weeks |
Initial Development Cost | $150K - $400K+ | $50K - $150K |
Security & Audit Overhead | High (unaudited, custom code) | Low (pre-audited modules, battle-tested) |
Supported Chains (Out-of-box) | EVM only (requires per-chain integration) | EVM, Solana, Cosmos, Bitcoin L2s |
Key Management & Security | Your responsibility (HSM, MPC R&D) | Managed MPC/TSS with enterprise SLAs |
Ongoing Maintenance & Upgrades | Dedicated 2-3 engineer team | Optional SLA with 24/7 monitoring |
Compliance & Standards | Self-researched (BIP-44, EIP-712, etc.) | Built-in (SOC 2, regulatory frameworks) |
Total Cost of Ownership (Year 1) | $300K - $600K+ | $80K - $200K |
how-we-deliver
STRUCTURED DELIVERY
Our 4-Phase Development Process
We de-risk your browser extension wallet project with a transparent, milestone-driven approach. Each phase delivers working software and clear deliverables, ensuring you maintain control and visibility from concept to launch.
security
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built to your exact specifications, from token standards to complex DeFi logic.
We architect and deploy production-grade smart contracts that form the foundation of your Web3 product. Our development process is built on security-first principles, utilizing battle-tested libraries like OpenZeppelin and comprehensive audit workflows to mitigate risk before deployment.
- Custom Logic: Build bespoke
SolidityorVypercontracts for DeFi, NFTs, DAOs, and more. - Token Standards: Full implementation of
ERC-20,ERC-721,ERC-1155, and custom extensions. - Security & Audits: Multi-stage review process, including automated analysis and manual peer review, culminating in a formal audit report.
- Gas Optimization: Code is meticulously optimized for lower transaction costs and efficient on-chain execution.
We deliver contracts that are not just functional, but are secure, maintainable, and ready to handle real-world value and scale.
Browser Extension Wallet Development
Frequently Asked Questions
Get clear answers on timelines, security, and process for building a secure, multi-chain browser extension wallet.
A core wallet MVP supporting 3-5 major EVM chains (Ethereum, Polygon, Arbitrum) with basic send/receive, token detection, and connection to dApps typically takes 6-8 weeks. Adding advanced features like cross-chain swaps, NFT galleries, or hardware wallet integration extends the timeline to 10-14 weeks. We provide a detailed sprint-by-sprint roadmap after the initial discovery phase.
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