We deliver production-ready smart contracts that are secure, gas-optimized, and tailored to your specific use case. Our development process includes comprehensive security audits and formal verification to protect your assets and users.
LABS
Services
Universal Transaction Builder & Signer SDK
A low-level SDK for constructing, simulating, and signing complex transactions (delegate, swap, bridge) in a standardized way across dozens of blockchain networks. Focused purely on wallet infrastructure.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built by experts to power your Web3 application.
- Custom Logic: Build
ERC-20,ERC-721,ERC-1155, DeFi protocols, DAOs, and bespoke on-chain systems. - Security-First: Development follows OpenZeppelin standards and undergoes multiple audit rounds before mainnet deployment.
- Gas Optimization: We reduce transaction costs by up to 40% through efficient code patterns and storage strategies.
- Full Lifecycle Support: From architecture and development to deployment, verification, and ongoing maintenance.
Deploy with confidence. We ensure your contract logic is bulletproof, your user funds are secure, and your application scales without unexpected costs.
key-features-cards
ENGINEERED FOR PRODUCTION
Core Capabilities of the Transaction SDK
Our SDK abstracts the complexity of multi-chain transaction construction, enabling your team to build and scale faster with enterprise-grade reliability and security.
benefits
PROVEN RESULTS
Engineering Outcomes: Build Faster, Scale Easier
Our Universal Transaction Builder & Signer SDK is engineered to deliver measurable improvements in development velocity, security, and operational efficiency. See the tangible benefits for your engineering team.
01
Accelerate Time-to-Market
Cut development cycles by up to 70% with our production-ready SDK. Pre-built modules for multi-chain transactions, gas sponsorship, and user onboarding let you launch features in weeks, not months.
70%
Faster Development
< 2 weeks
Feature Launch
02
Enterprise-Grade Security
Build with confidence using our audited, non-custodial architecture. Every component follows OpenZeppelin best practices and undergoes rigorous internal security reviews before release.
100%
Non-Custodial
Zero
Critical Vulnerabilities
03
Seamless Multi-Chain Support
Deploy and manage transactions across Ethereum, Polygon, Arbitrum, and Base from a single, unified API. Eliminate the complexity of maintaining separate chain-specific integrations.
10+
Supported Chains
1 API
Unified Interface
04
Reduce Infrastructure Overhead
Offload the heavy lifting of transaction construction, simulation, and signing. Our managed service handles scalability and reliability, so your team can focus on core product logic.
99.9%
Uptime SLA
> 50%
Ops Cost Reduction
Universal Transaction Builder & Signer SDK
Build vs. Buy: The Infrastructure Trade-off
Compare the total cost, risk, and time investment of developing a custom transaction infrastructure versus leveraging Chainscore's production-ready SDK.
| Factor | Build In-House | Chainscore SDK |
|---|---|---|
Time to Production | 6-12 months | 2-4 weeks |
Initial Development Cost | $150K - $400K+ | $25K - $75K |
Annual Maintenance Cost | $100K - $250K (2-3 engineers) | Optional SLA from $50K/year |
Security & Audit Burden | High (Your team's responsibility) | Low (Pre-audited, battle-tested code) |
Protocol & Chain Coverage | Months to add new support | Immediate (EVM, Solana, Cosmos, etc.) |
Multi-Sig & MPC Support | Custom implementation required | Built-in (Gnosis Safe, Fireblocks, etc.) |
Gas Optimization Engine | Requires dedicated R&D | Included (Dynamic fee, bundle, simulation) |
Developer Experience | Internal documentation only | Full SDK, docs, and dedicated support |
Infrastructure Uptime SLA | Your team's responsibility | 99.9% Guaranteed |
Total Cost of Ownership (Year 1) | $250K - $650K+ | $75K - $125K |
how-we-deliver
PREDICTABLE, TRANSPARENT, AND GUARANTEED
Our Delivery Process: From Integration to Production
We deliver your Universal Transaction Builder & Signer SDK with a structured, milestone-driven process designed for technical teams. Get production-ready infrastructure with clear timelines and enterprise SLAs.
01
Phase 1: Discovery & Architecture
We conduct a 2-day technical deep dive to map your specific use cases, target chains (EVM, Solana, Cosmos), and integration points. You receive a detailed technical specification and architecture diagram.
2 Days
Technical Deep Dive
1 Week
Spec Delivery
02
Phase 2: SDK Integration & Customization
Our engineers integrate the core SDK into your codebase and build custom transaction flows for your dApp. Includes support for multi-chain operations, fee abstraction, and wallet provider agnosticism.
1-2 Weeks
Core Integration
EVM, Solana, Cosmos
Chain Support
03
Phase 3: Security Audit & Pen Testing
Every integration undergoes a rigorous internal security review focused on transaction signing logic and key management. Optional formal audit coordination with partners like Spearbit or CertiK.
100%
Internal Review
Partner Audits
Available
04
Phase 4: Staging Deployment & Testing
We deploy the integrated SDK to your staging environment. Includes comprehensive E2E testing across all target networks, load testing for high-volume scenarios, and developer documentation handoff.
Testnet & Devnet
Full Coverage
Detailed Docs
Included
05
Phase 5: Production Go-Live & Monitoring
We manage the production deployment and provide 24/7 monitoring for transaction success rates, latency, and error tracking. You get access to a dedicated dashboard and alerting system.
99.9%
Uptime SLA
24/7
Monitoring
06
Phase 6: Ongoing Support & Scaling
Receive prioritized technical support, quarterly performance reviews, and seamless upgrades for new chain integrations (e.g., Bitcoin L2s, Move-based chains) as your product scales.
< 1 Hour
Support SLA
Quarterly Reviews
Included
Universal Transaction Builder & Signer SDK
Technical & Commercial FAQs
Answers to common questions from CTOs and technical founders evaluating our SDK for production-grade transaction infrastructure.
For a standard integration, we deliver a production-ready SDK in 2-3 weeks. This includes environment setup, core transaction flow integration, and a security review. Complex multi-chain deployments or custom signing logic may extend this to 4-5 weeks. We provide a detailed project plan after the initial technical scoping call.
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