We architect and manage the foundational blockchain layer so your team can focus on product innovation. Our infrastructure is built for high-frequency trading, cross-border payments, and tokenized assets with 99.9% uptime SLAs and sub-second finality.
LABS
Services
Cross-Chain Account Abstraction SDK
A production-ready SDK for building smart contract wallets that operate across multiple blockchains. We deliver gas sponsorship, batch transactions, and social recovery mechanisms on any supported chain.
Chainscore © 2026
overview
SCALE WITH CONFIDENCE
Blockchain Infrastructure for FinTechs
Enterprise-grade blockchain infrastructure for FinTechs requiring high throughput, security, and compliance.
- Node & Validator Management: Dedicated
RPC/JSON-RPCendpoints, archival nodes, and validator staking with zero slashing history. - Multi-Chain Support: Production-ready infrastructure for
EVMchains (Ethereum, Polygon, Arbitrum),Cosmos SDK, andSolana. - Security & Compliance: SOC 2 Type II compliant operations, real-time threat monitoring, and audit trails for financial regulators.
Deploy a fully-managed, compliant blockchain stack in under 2 weeks, eliminating 6+ months of DevOps overhead and reducing infrastructure costs by up to 40%.
key-features-cards
DEVELOPER-FIRST INFRASTRUCTURE
Core SDK Capabilities
Our SDK abstracts the complexity of cross-chain user operations, providing a unified interface for developers to build seamless, secure, and scalable applications.
03
Gas Management Engine
Automated gas estimation, fee sponsorship, and multi-currency payment. Pay fees in any ERC-20 token. Includes failover logic to prevent transaction stalling.
< 1 sec
Gas Estimation
10+
Pay Tokens
05
Modular Smart Account Factory
Pre-audited, upgradable smart account templates with pluggable modules for recovery, 2FA, and spending limits. Deploy thousands of accounts via deterministic CREATE2.
0.5¢
Avg. Deploy Cost
5+
Pre-built Modules
benefits
ENGINEERED FOR PRODUCTION
Why Choose Our Cross-Chain AA SDK
Our SDK is built for technical leaders who need battle-tested, production-ready infrastructure to launch and scale cross-chain applications.
02
Multi-Chain Native from Day One
Support for Ethereum, Polygon, Arbitrum, Optimism, and Base out of the box. Our modular architecture makes adding new EVM chains a configuration change, not a rewrite.
5+ Chains
Supported
< 1 Week
New Chain Integration
04
Gas Abstraction & Sponsorship
Implement flexible gas policies—allow users to pay in any token or sponsor transactions entirely. Our relayer infrastructure handles complexity with 99.9% uptime SLA.
99.9%
Relayer Uptime SLA
< 2 sec
Median Relay Time
05
Enterprise-Grade Scalability
Built to handle high-throughput applications. Our architecture supports horizontal scaling of relayers and key management, ensuring performance under load.
10k+ TPS
Theoretical Capacity
Zero Downtime
Upgrades
06
Managed Smart Account Infrastructure
We operate the secure, non-custodial infrastructure for smart account deployment, key management, and transaction bundling, so your team can focus on product logic.
Non-Custodial
Key Model
24/7
Infra Monitoring
Infrastructure Decision Matrix
Build vs. Buy: Implementing Cross-Chain Account Abstraction
A detailed comparison of the cost, risk, and time investment required to build a cross-chain AA system from scratch versus using Chainscore's production-ready SDK.
| Key Factor | Build In-House | Chainscore SDK |
|---|---|---|
Time to Production Launch | 6-12 months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $25K - $75K |
Security Audit Requirement | Mandatory (8-12 weeks, $50K+) | Pre-audited (Included) |
Ongoing Protocol Maintenance | Full-time senior engineer | Managed updates (Optional SLA) |
Multi-Chain Gas Abstraction | Custom implementation per chain | Unified API for 10+ EVM chains |
Smart Account Wallet Support | ERC-4337 only | ERC-4337, Safe{Core}, Biconomy, Particle |
Batched UserOps & Sponsorship | Custom relayers & paymasters | Built-in, configurable system |
Recovery & Session Key Management | You architect and build | Pre-built modules included |
Total Year 1 Cost (Est.) | $400K - $800K+ | $50K - $150K |
Infrastructure Ownership & Risk | You bear 100% of operational risk | We provide 99.9% SLA & support |
how-we-deliver
PREDICTABLE, TRANSPARENT, AND SECURE
Our Delivery Process
From initial architecture to production deployment, our structured 4-phase process ensures your cross-chain AA SDK is delivered on time, within budget, and to the highest security standards.
01
Architecture & Design Review
We conduct a comprehensive technical deep-dive to define your target chains, user flows, and gas optimization strategy. Deliverables include a finalized technical spec and a detailed project roadmap.
1-2 weeks
Timeline
100%
Spec Finalization
02
Core SDK Development
Our engineers build the modular SDK components: smart account factories, paymaster integrations, and cross-chain message relays. All code follows OpenZeppelin standards and is fully documented.
2-4 weeks
Development
OpenZeppelin
Security Standard
03
Security Audit & Testing
Every line of code undergoes rigorous internal review and automated testing. We provide the option for a formal audit with our partner firms (e.g., Spearbit, CertiK) before mainnet deployment.
> 95%
Test Coverage
Zero Critical
Audit Findings
04
Deployment & Integration Support
We handle the deployment of factory contracts and provide dedicated integration support for your engineering team, including sample dApps and production monitoring dashboards.
< 1 week
Go-Live
24/7
Launch Support
security
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
We architect and deploy custom smart contracts that are secure, gas-optimized, and tailored to your specific use case. Our development process is built on audited security patterns and includes comprehensive testing to ensure reliability.
From token standards to complex DeFi logic, we deliver contracts you can trust for mainnet deployment.
- Token Systems: Custom
ERC-20,ERC-721,ERC-1155with minting, vesting, and governance modules. - DeFi & DEX: Automated Market Makers (AMMs), liquidity pools, staking, and yield farming contracts.
- Security First: Development with OpenZeppelin libraries, formal verification, and pre-audit reviews.
- Full Lifecycle: Development, testing, deployment, and upgrade management via proxy patterns.
Cross-Chain Account Abstraction SDK
Frequently Asked Questions
Get clear answers on implementation, security, and support for our enterprise-grade SDK.
A standard integration with one EVM chain takes 2-3 weeks. Multi-chain deployments (e.g., Ethereum + Polygon + Arbitrum) typically require 3-5 weeks, including custom smart account deployment, testing, and audit review integration. We provide a detailed project plan within the first 48 hours of engagement.
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