We architect, develop, and audit custom Solidity and Rust smart contracts that form the immutable backbone of your Web3 application. Our process ensures security, gas efficiency, and compliance with industry standards from day one.
LABS
Services
Account Abstraction for Cross-World Sessions
We engineer smart contract wallets and session key management systems that abstract chain complexities, enabling users to interact across multiple metaverse platforms in a single, gas-optimized session.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts for DeFi, NFTs, and enterprise applications.
- Security-First Development: Built with
OpenZeppelinlibraries and hardened patterns, followed by rigorous pre-audit reviews. - Gas Optimization: Every contract is profiled and optimized for minimum transaction costs and maximum user savings.
- Full Lifecycle Support: From initial design and
Truffle/Hardhattesting to mainnet deployment and upgrade management via proxies.
Deliver a battle-tested, auditable codebase in 2-4 weeks, reducing your technical risk and accelerating your go-to-market.
key-features-cards
BUILDING THE BRIDGE
Core Technical Capabilities We Deliver
We architect and deploy the foundational infrastructure that enables seamless, secure user sessions across EVM and non-EVM chains. Our solutions are built for production at scale.
01
ERC-4337 Smart Account Implementation
Deploy gas-abstracted smart contract wallets with session keys, enabling users to interact across multiple dApps and chains without repeated confirmations. Built on OpenZeppelin standards with custom extensions for cross-chain logic.
0.8.22+
Solidity Version
OpenZeppelin
Security Standard
02
Cross-Chain Session Key Management
Secure, non-custodial session key orchestration that maintains user intent and permissions across heterogeneous networks (EVM, Solana, Cosmos). Implements time-bound, scope-limited permissions with instant revocation.
Multi-Chain
Supported
< 1 sec
Revocation Time
03
Paymaster & Gas Abstraction Engine
A robust, multi-currency paymaster system allowing dApps to sponsor user transactions or enable fee payment in any ERC-20 token. Features real-time gas estimation and cost optimization across all supported chains.
Any ERC-20
Fee Payment
99.9% SLA
Relay Uptime
04
Unified User Operation Bundler
High-performance bundler service that aggregates, validates, and submits UserOperations to multiple blockchain networks with sub-second latency. Includes mempool monitoring and transaction simulation for security.
Sub-second
Bundling Latency
Multi-Network
Concurrent Support
05
Cross-World State Synchronization
Middleware that securely synchronizes user session state, preferences, and permissions between disparate blockchain environments, ensuring a consistent experience without centralized data stores.
Event-Driven
Sync Architecture
End-to-End
Encrypted
06
Security & Audit Integration
Comprehensive security framework including pre-deployment audits with firms like Spearbit, runtime monitoring with Forta, and automated vulnerability scanning integrated into the CI/CD pipeline.
Spearbit
Audit Partner
Forta
Runtime Monitoring
benefits
DELIVERABLES
Business Outcomes for Your Metaverse Platform
Implementing account abstraction for cross-world sessions delivers measurable improvements in user experience, security, and operational efficiency. Here are the concrete outcomes you can expect.
01
Seamless Cross-World User Journeys
We deliver a unified identity layer enabling users to move assets and reputation across virtual worlds without re-authenticating or managing separate wallets. This reduces user drop-off by up to 70%.
70%
Reduced Drop-off
1-Click
Session Login
02
Gasless Transaction Experience
Implement sponsor-paid gas for user actions, removing the friction of requiring native tokens. This is critical for onboarding mainstream users and enabling complex in-world economies.
0
User Gas Costs
Pay-per-User
Predictable Cost Model
03
Enhanced Security & Recovery
Deploy social recovery and multi-signature guardian modules for smart accounts, drastically reducing the risk of permanent asset loss. Our implementation follows OpenZeppelin security patterns.
Social Recovery
User-Owned
ERC-4337
Standard Compliant
04
Scalable Session Management
Build a backend infrastructure that handles millions of concurrent authenticated sessions with sub-second latency, ensuring performance doesn't degrade during peak events or world launches.
< 1 sec
Session Latency
99.9%
Uptime SLA
05
Interoperable Asset Portability
Enable true digital ownership where NFTs, tokens, and wearables minted in one world are usable in another through standardized ERC-6551 token-bound accounts and our cross-chain messaging layer.
ERC-6551
Token Standard
Multi-Chain
Asset Support
06
Faster Time-to-Market
Leverage our pre-audited, modular smart account factories and session key managers to deploy a production-ready system in weeks, not months, accelerating your platform launch.
< 4 weeks
To Production
Pre-Audited
Core Modules
Choose Your Path to Cross-World Sessions
Phased Development & Integration Tiers
A structured roadmap for implementing Account Abstraction, from initial proof-of-concept to full-scale production. Compare deliverables, support levels, and investment for each phase.
| Core Deliverables & Support | Discovery & PoC | Full Implementation | Managed Enterprise |
|---|---|---|---|
Custom ERC-4337 Bundler & Paymaster Setup | |||
Multi-Chain Smart Account Factory (EVM) | Single Chain | Up to 3 Chains | Unlimited |
Session Key Management System | Basic (Time-based) | Advanced (Rule-based) | Custom Logic & Governance |
Gas Abstraction & Sponsorship Logic | Pre-built Templates | Custom Sponsorship Rules | Dynamic Multi-Token Sponsorship |
Security Audit Scope | Light Review | Full Smart Contract Audit | Full Audit + Infrastructure Pen Test |
Integration Support | Documentation & Examples | Direct Engineering Support | Dedicated Integration Engineer |
Deployment & Go-Live Assistance | |||
Production Monitoring & Alerting | Self-Service Dashboard | 24/7 Monitoring & Alerts | 24/7 Monitoring with 15-min SLA |
Ongoing Maintenance & Upgrades | Optional Retainer | Included with Quarterly Reviews | |
Estimated Timeline | 2-4 Weeks | 6-10 Weeks | 10+ Weeks (Custom) |
Typical Investment | $15K - $30K | $50K - $120K | Custom Quote |
how-we-deliver
A PROVEN FRAMEWORK
Our Development & Integration Process
We follow a structured, security-first methodology to deliver production-ready Account Abstraction infrastructure, ensuring rapid integration and enterprise-grade reliability.
01
Architecture & Strategy Session
We analyze your user journey and technical stack to design a tailored AA implementation strategy, selecting optimal standards (ERC-4337, ERC-6900) and bundler/paymaster providers.
1-2 Days
Workshop Duration
Detailed Spec
Deliverable
02
Smart Contract Development & Audit
Our engineers develop custom Account Factory, Paymaster, and Session Key modules in Solidity/Vyper. All code undergoes internal review and is prepared for third-party audit.
OpenZeppelin
Security Patterns
Gas Reports
Included
03
Bundler & Paymaster Integration
We integrate and configure high-performance bundler nodes (e.g., Stackup, Alchemy) and deploy managed paymaster contracts with flexible sponsorship logic for seamless gas abstraction.
< 1 sec
UserOp Latency
Multi-Chain
Supported
04
Frontend SDK Implementation
We integrate AA SDKs (like @account-abstraction/sdk) into your dApp, enabling features like social logins, batch transactions, and subscription sessions with minimal code changes.
React/Next.js
Framework Ready
TypeScript
Full Support
05
Testing & Quality Assurance
Comprehensive testing suite including unit tests, integration tests with testnet bundlers, and end-to-end user flow simulations to ensure reliability before mainnet deployment.
> 95%
Coverage Target
Goerli/Sepolia
Test Networks
06
Deployment & Ongoing Support
We manage the mainnet deployment, provide monitoring dashboards for key metrics, and offer ongoing support with SLAs for bundler uptime and paymaster refills.
99.9% SLA
Bundler Uptime
24/7
Monitoring
security
FULL-STACK INFRASTRUCTURE
Custom Blockchain Development
End-to-end blockchain solutions from protocol design to mainnet deployment.
We architect and build bespoke blockchain networks and dApps tailored to your business logic. Our full-cycle development delivers production-ready systems, not just prototypes.
- Layer 1 & Layer 2 Development: Custom chains using
Substrate,Cosmos SDK, or rollup frameworks (Arbitrum Orbit,OP Stack). - Smart Contract Suites: Secure, gas-optimized contracts in
Solidity,Rust (Solana), orMove (Aptos/Sui). - Full-Stack dApps: Integrated frontends (
React/Next.js), indexers (The Graph), and wallets for seamless user experiences. - Mainnet Launch Support: Comprehensive deployment, monitoring, and node management for a smooth go-live.
We handle the entire stack so your team can focus on product and growth, reducing time-to-market by 60-70%.
Our process includes formal verification and audits by leading firms before deployment. We provide post-launch support and documentation, ensuring long-term reliability and scalability for your network.
Account Abstraction Implementation
Frequently Asked Questions
Get clear answers on our process, timeline, and technical approach for building secure, cross-world user sessions.
A standard implementation for a single chain with core ERC-4337 features takes 2-4 weeks from kickoff to mainnet deployment. Complex multi-chain deployments with custom paymasters and session key logic typically require 6-8 weeks. We provide a detailed sprint plan during the initial technical 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