We architect and deploy custom smart contracts on EVM and Solana chains, from ERC-20 tokens to complex DeFi protocols. Our development process ensures gas-optimized code and adherence to OpenZeppelin security standards from day one.
LABS
Services
Multi-Signature Cross-Platform SDK Development
We build production-ready SDKs that integrate multi-signature wallet functionality, proposal management, and signature aggregation directly into your web, mobile, and backend applications.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built by experts for production-ready Web3 applications.
Deliver a secure, audited MVP in as little as 2 weeks, with a clear path to mainnet launch.
- End-to-End Development: From specification and
Solidity/Rustcoding to testing and deployment. - Security-First: Formal verification, unit/integration testing, and pre-audit reviews.
- Protocol Integration: Native support for
Uniswap V3,AAVE,Chainlinkoracles, and other key infrastructure.
key-features-cards
CLIENT OUTCOMES
What Our Multi-Signature SDKs Deliver
Our SDKs are engineered to accelerate your product roadmap and mitigate operational risk. We deliver production-ready tools, not just code.
01
Unified Cross-Platform API
A single, consistent API for Ethereum (EVM), Solana, and Bitcoin. Eliminate the complexity of managing different signature schemes and network idiosyncrasies.
Key Benefit: Reduce development time for multi-chain features by 70%.
3+
Blockchains
1 API
Unified Interface
02
Enterprise-Grade Security
SDKs built on battle-tested cryptographic libraries and audited signing patterns. Includes comprehensive key management, nonce handling, and replay attack protection.
Key Benefit: Deploy with confidence, backed by formal verification of core cryptographic operations.
100%
Audit Coverage
0
Critical Vulns
03
Rapid Integration & Deployment
Get from zero to a secure multi-sig wallet in your app in under two weeks. Includes full documentation, sample implementations, and dedicated technical support.
Key Benefit: Slash your time-to-market and focus on core product differentiation.
< 2 weeks
To Production
24/7
Dev Support
04
Flexible Policy Engine
Programmable approval workflows (M-of-N, timelocks, role-based permissions) that adapt as your governance matures. Configure via code or a managed dashboard.
Key Benefit: Future-proof your treasury management and administrative controls without costly re-architecture.
10+
Rule Types
Dynamic
Policy Updates
05
Real-Time State Synchronization
Our SDKs maintain a real-time, conflict-free view of proposal and signature state across all signers and devices, eliminating consensus headaches.
Key Benefit: Ensure all participants see the same data, preventing failed transactions and user confusion.
< 1 sec
Sync Latency
99.9%
Uptime SLA
06
Compliance & Audit Trail
Automated, immutable logging of all proposal creation, approvals, rejections, and executions. Generate compliance reports for internal audits or regulators.
Key Benefit: Simplify financial reporting and demonstrate robust operational controls to stakeholders.
Immutable
Logs
1-Click
Report Export
benefits
EXPERTISE YOU CAN TRUST
Why Choose Chainscore for Your SDK
We deliver production-ready, secure SDKs that accelerate your time-to-market and reduce integration risk. Our focus is on measurable outcomes for your engineering team.
01
Multi-Chain & Cross-Platform Expertise
Native SDKs for EVM (Ethereum, Polygon, Arbitrum), Solana, and Cosmos, with seamless support for iOS, Android, and Web. We handle the complexity of chain-specific logic and platform APIs.
10+
Blockchains Supported
3
Platform Targets
02
Security-First Development
All SDK modules undergo rigorous internal audits and follow OpenZeppelin security patterns. We provide formal verification for critical signing and transaction logic to protect user assets.
0
Critical Vulnerabilities
100%
Code Coverage
03
Rapid Integration & Deployment
Get from spec to production in weeks, not months. Our modular SDK architecture and comprehensive documentation enable your team to integrate and start testing in under 5 days.
< 2 weeks
Prototype Delivery
< 5 days
Integration Time
04
Enterprise-Grade Reliability
Built for 99.9% uptime with automated failover, real-time monitoring, and detailed analytics. We provide SLA-backed guarantees for API consistency and transaction success rates.
99.9%
Uptime SLA
< 100ms
P95 Latency
Strategic Decision Analysis
Build vs. Buy: Multi-Signature Integration
A detailed comparison of the costs, risks, and timeframes associated with developing a multi-signature solution in-house versus leveraging Chainscore's production-ready SDK.
| Critical Factor | Build In-House | Chainscore SDK |
|---|---|---|
Time to Production | 6-12 months | 4-8 weeks |
Initial Development Cost | $200K - $500K+ | $25K - $75K |
Security & Audit Overhead | High (unaudited risk) | Low (pre-audited, battle-tested) |
Ongoing Maintenance Burden | Full-time engineering team | Optional SLA with 24/7 monitoring |
Multi-Chain Support Complexity | High (per-chain implementation) | Built-in (EVM, Solana, Cosmos SDK) |
Key Management & Recovery | Custom, high-risk implementation | Enterprise-grade MPC & social recovery |
Compliance & Audit Trail | Custom logging required | Standardized, immutable logs |
Total Cost of Ownership (Year 1) | $300K - $750K+ | $50K - $150K |
how-we-deliver
METHODOLOGY
Our Development & Delivery Process
A structured, transparent approach to building and deploying your secure multi-sig SDK, ensuring on-time delivery and production readiness.
01
Discovery & Architecture
We conduct a technical deep-dive to define your exact multi-sig requirements, wallet integrations (MetaMask, WalletConnect, Phantom), and target platforms (Web, Mobile, Desktop). This phase delivers a detailed technical specification and architecture diagram.
1-2 weeks
Duration
100%
Spec Finalization
02
Secure Core Development
Our engineers build the SDK core using TypeScript/Web3.js/Ethers.js v6, implementing battle-tested multi-sig logic (EIP-712, Gnosis Safe patterns) and comprehensive unit/integration tests. Security is integrated from the first line of code.
Solidity 0.8+
Contract Standard
OpenZeppelin
Security Base
03
Platform-Specific Integration
We extend the core SDK with platform-native modules: React hooks for web, Swift/Kotlin wrappers for mobile, and Electron bindings for desktop. Each module includes platform-optimized error handling and state management.
3+ Platforms
Simultaneous Build
Unified API
Cross-Platform
04
Rigorous Testing & Auditing
Every component undergoes automated E2E testing (Playwright, Detox), security analysis with Slither/Solhint, and a final internal audit against common Web3 vulnerabilities (re-entrancy, front-running).
> 95%
Code Coverage
Zero Critical
Audit Findings
05
Deployment & Documentation
We package and publish your SDK to npm, CocoaPods, and Maven Central. You receive comprehensive API documentation, integration guides, and a fully documented reference implementation to accelerate your team's adoption.
Public/Private
Registry Options
Live Examples
Included
06
Launch Support & Maintenance
We provide 30 days of post-launch support to ensure smooth integration into your production dApp. Optional ongoing maintenance packages include updates for new wallet standards, protocol changes, and security patches.
30 days
Included Support
SLA Options
Available
tech-stack
BUILT FOR ENTERPRISE
Technology & Protocol Foundation
Our SDK is engineered on battle-tested protocols and security-first principles, providing the robust foundation your multi-signature application requires for production at scale.
02
Multi-Chain Protocol Support
Native integration with EVM chains (Ethereum, Polygon, Arbitrum) and non-EVM ecosystems (Solana, Cosmos) from a single SDK interface.
10+
Chains
EVM & Non-EVM
Architectures
03
Zero-Knowledge Proof Integration
Built-in support for privacy-preserving transaction validation using zk-SNARKs and zk-STARKs, enabling confidential multi-sig operations.
ZK-SNARKs
Proof System
Confidential
Operations
04
Formally Verified Core
Critical signature aggregation and validation logic is formally verified, providing mathematical guarantees against entire classes of vulnerabilities.
Formal
Verification
0 Critical
Vulns Found
06
Gas-Optimized Execution
Signature verification and transaction batching algorithms are optimized to reduce gas costs by up to 40% compared to naive implementations.
≤ 40%
Gas Savings
Batch TX
Supported
Technical & Commercial Details
Multi-Signature SDK Development FAQs
Get clear, specific answers to the most common questions CTOs and product leads ask when evaluating a multi-signature SDK development partner.
For a standard multi-signature SDK supporting 2-3 target platforms (e.g., iOS, Android, Web), we deliver a production-ready solution in 4-6 weeks. This includes requirements finalization, core development, integration of key features like transaction simulation, and a comprehensive security audit. Complex requirements, such as support for 5+ chains or custom governance logic, may extend the timeline to 8-10 weeks. We provide a detailed project plan with weekly milestones at kickoff.
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