We architect and deploy custom smart contracts for DeFi, NFTs, and enterprise applications. Our team specializes in Solidity, Rust (Solana), and Move (Aptos/Sui), delivering audit-ready code from day one.
Account Abstraction for Cross-Rollup UserOps
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts.
- Security-First Development: Contracts built with
OpenZeppelinstandards and undergo internal peer review before delivery. - Gas Optimization: We reduce transaction costs by 15-40% through efficient coding patterns.
- Full Lifecycle Support: From initial spec to mainnet deployment and post-launch monitoring.
Deliver a secure, scalable foundation for your protocol in as little as 4 weeks.
Core Technical Capabilities
Our engineering team delivers production-ready, secure infrastructure for cross-rollup account abstraction, enabling seamless user operations across any L2 or L3.
Cross-Rollup Smart Account Factory
Deploy ERC-4337-compatible smart accounts with native support for multi-chain operations. We implement modular account logic for gas sponsorship, batch transactions, and session keys, enabling a single user identity across Arbitrum, Optimism, Base, and zkSync.
Unified Bundler & Paymaster Network
High-availability infrastructure for submitting and sponsoring UserOperations. Our globally distributed nodes ensure sub-second transaction inclusion with 99.9% uptime SLA and configurable gas policies for predictable operational costs.
Security-First Development
All smart contracts and infrastructure are built with OpenZeppelin libraries, undergo formal verification, and are audited by leading security firms. We implement multi-sig governance and real-time monitoring for all critical operations.
Custom UserOp Flow Orchestration
Design and implement complex, gas-optimized transaction flows. We handle cross-chain intent resolution, atomic multi-step actions, and fail-safe mechanisms, abstracting complexity for your end-users.
Business Outcomes for Your Product
Our Account Abstraction for Cross-Rollup UserOps service delivers concrete, measurable results that accelerate your product roadmap and enhance user experience.
Seamless Multi-Chain User Experience
Deploy a single smart account that operates across Arbitrum, Optimism, Base, and zkSync. Users sign once to execute transactions on any supported L2, eliminating the friction of managing separate wallets and native gas tokens per chain.
Enterprise-Grade Security & Audit
Receive production-ready, audited smart account factories and entry points. Our modular architecture uses OpenZeppelin standards and has undergone third-party security review, ensuring your user's assets and operations are protected.
Reduced Gas Costs & Sponsorship Logic
Implement optimized gas abstraction with paymaster integrations. We build custom sponsorship logic (flat fee, subscription, or grant-based) that can reduce end-user transaction costs to zero, a key growth lever for user acquisition.
Faster Time-to-Market
Leverage our battle-tested AA SDK and cross-rollup infrastructure modules. Integrate fully functional cross-chain user operations within weeks, not months, allowing you to focus on core product differentiation.
Scalable Batch Transaction Engine
Enable complex user intents with our batch transaction bundler. Users can approve, swap, and bridge assets across rollups in a single atomic operation, increasing engagement and transaction volume per session.
Dedicated Infrastructure & Monitoring
Get a managed deployment of bundlers, paymasters, and indexers with 24/7 monitoring and alerting. We provide a 99.5% SLA on UserOp inclusion and detailed analytics dashboards for tracking adoption and performance.
Implementation Roadmap & Support Tiers
A phased approach to deploying and managing your cross-rollup smart accounts, from initial audit to full-scale production with enterprise-grade support.
| Phase & Capability | Launch Package | Growth Package | Enterprise Scale |
|---|---|---|---|
Smart Account Audit & Deployment | |||
Cross-Rollup Paymaster Integration | Single Chain | 3 Chains | Unlimited |
Gas Sponsorship Logic & Dashboard | Basic | Advanced Rules | Custom Policies |
Initial Security Review | |||
Ongoing Monitoring & Alerts | 30 Days | 6 Months | 24/7 with SLA |
Incident Response Time | Next Business Day | < 4 Hours | |
Bundler Infrastructure | Shared | Dedicated Instance | Multi-Region Cluster |
Custom Feature Development | Consultation | Up to 40 Hours | Dedicated Sprint |
Typical Timeline | 4-6 Weeks | 6-8 Weeks | 8-12+ Weeks |
Estimated Investment | $25K - $50K | $75K - $150K | Custom Quote |
Our Development & Integration Process
A structured, four-phase engagement designed for technical leaders who need reliable, scalable cross-rollup account abstraction, not just prototypes. We deliver battle-tested infrastructure with clear milestones and ownership.
Architecture & Specification
We conduct a deep technical audit of your current stack and user flows. Deliverables include a detailed architecture diagram, smart contract specifications (ERC-4337, ERC-6900), and a phased integration roadmap aligned with your product goals.
Core Smart Contract Development
Our team builds and rigorously tests your custom Account Factory, Paymasters, and Bundlers. Development follows security-first principles using Solidity 0.8+ with OpenZeppelin libraries, and includes comprehensive unit/integration testing.
Cross-Rollup Integration & Testing
We implement and configure the bundler infrastructure (e.g., Stackup, Alchemy) and integrate Paymaster services for gas sponsorship. This phase includes end-to-end testing across your target L2s (Arbitrum, Optimism, Base) and mainnet.
Deployment & Production Monitoring
We manage the secure deployment of all contracts and infrastructure components. You receive a production dashboard for monitoring UserOp success rates, gas costs, and system health, along with full documentation and handover.
Smart Contract Development
Secure, audited smart contract development for DeFi, NFTs, and enterprise applications.
We architect and deploy production-grade smart contracts that power your core business logic. Our development process is built on security-first principles, utilizing OpenZeppelin libraries and comprehensive testing frameworks to mitigate risk before deployment.
From a 2-week MVP to a complex multi-chain protocol, we deliver battle-tested code that executes as intended, every time.
- Custom Logic: Tailored
Solidity/Rustcontracts for DeFi (DEX, lending), NFTs (ERC-721A, ERC-1155), and DAOs. - Full Audit Trail: Development includes unit tests, integration tests, and preparation for third-party audits from firms like
CertiKorQuantstamp. - Gas Optimization: We write efficient code to minimize transaction fees, a critical factor for user adoption.
- Post-Deployment Support: Includes verification on block explorers and initial monitoring setup.
Frequently Asked Questions
Get clear answers on our process, timeline, and technical approach for building cross-rollup user operations.
We deliver a production-ready, audited Account Abstraction system in 4-8 weeks for a standard implementation. This includes smart contract development, bundler/paymaster integration, and a frontend SDK. Complex multi-chain deployments or custom gas sponsorship models may extend this to 10-12 weeks. We provide a detailed sprint-by-sprint timeline during the discovery phase.
Get In Touch
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Our experts will offer a free quote and a 30min call to discuss your project.