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Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

Account Abstraction Enabled Cross-Chain Swaps

We build cross-chain liquidity aggregation platforms powered by ERC-4337. Enable smart contract wallets to execute complex, batched swaps across chains with sponsored gas for a seamless user experience.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, audited smart contract development for DeFi, NFTs, and enterprise applications.

We build production-ready smart contracts with a focus on security, gas efficiency, and upgradability. Our process includes formal verification and third-party audits to mitigate risk before mainnet deployment.

  • Custom Logic: ERC-20, ERC-721, ERC-1155, and bespoke protocols for DeFi, gaming, and DAOs.
  • Security First: Development with OpenZeppelin standards, comprehensive unit testing, and pre-audit reviews.
  • Full Lifecycle: From architecture and development to deployment, verification, and post-launch monitoring.
key-features-cards
ARCHITECTURE & EXECUTION

Core Technical Capabilities We Deliver

We build the foundational infrastructure for seamless, secure cross-chain asset transfers powered by Account Abstraction. Our solutions are designed for production-grade reliability and developer velocity.

01

ERC-4337 Smart Account Integration

Deploy and manage smart contract wallets with native support for gas sponsorship, batch transactions, and session keys. Eliminates seed phrase friction for your users while maintaining non-custodial security.

Key Deliverables: Custom Paymaster logic, user operation bundlers, and account factory contracts.

ERC-4337
Standard
OpenZeppelin
Audit Base
02

Cross-Chain Messaging & Bridging

Secure, low-latency message passing between EVM and non-EVM chains (e.g., Solana, Cosmos). We implement verified bridges and generic message relays to enable complex swap logic across heterogeneous networks.

Key Deliverables: LayerZero/CCIP integration, light client verification, and fallback mechanisms.

< 2 min
Avg. Finality
10+ Chains
Supported
03

Intent-Based Swap Infrastructure

Build systems where users specify the desired outcome (e.g., "Swap X for Y on Arbitrum") and our solvers find the optimal route across DEXs and bridges. Drives better rates and UX than traditional step-by-step swaps.

Key Deliverables: Solver network integration, MEV protection, and route optimization engine.

5-30%
Better Rates
Sub-Second
Quote Speed
04

Gas Abstraction & Sponsorship Engine

Allow users to pay fees in any token or enable dApps to sponsor transactions. Our flexible Paymaster system handles complex gas logic, including subscription models and fee reimbursements.

Key Deliverables: Multi-token fee payment, sponsor whitelisting, and gas cost analytics dashboard.

Any ERC-20
Fee Token
99.9% SLA
Relayer Uptime
05

Security & Audit-Ready Code

All smart contracts and off-chain components are developed with security-first principles, following established patterns and prepared for third-party audits. We provide comprehensive test suites and monitoring setups.

Key Deliverables: Formal verification reports, incident response playbooks, and real-time threat monitoring.

100%
Test Coverage
CertiK
Audit Ready
06

Scalable Relayer & Indexer Infrastructure

High-availability backend services to broadcast user operations, index on-chain events, and manage state across chains. Built for horizontal scaling to handle peak transaction volumes.

Key Deliverables: Auto-scaling Kubernetes clusters, multi-region deployment, and sub-100ms p95 latency.

99.95%
Uptime
< 2 weeks
Deployment
benefits
DELIVERABLES

Business Outcomes for Your Platform

Our Account Abstraction-enabled cross-chain swap infrastructure delivers measurable results for your business, from user growth to operational resilience.

01

Frictionless User Onboarding

Eliminate seed phrase friction and gas prepayments. Users sign transactions with familiar Web2 methods, increasing activation rates by up to 40%.

40%
Higher Activation
< 60 sec
First Swap
02

Reduced Operational Costs

Batch user transactions and sponsor gas fees programmatically. Cut per-user acquisition and support costs by optimizing cross-chain settlement overhead.

70%
Lower Gas Costs
24/7
Auto-Sponsorship
03

Enhanced Security & Compliance

Leverage smart account session keys and transaction policies. Enforce spending limits and authorized dApp lists for enterprise-grade security and audit trails.

SOC 2
Compliance
Zero
Custody Risk
04

Multi-Chain Liquidity Access

Tap into aggregated liquidity across Ethereum, Arbitrum, Polygon, and Base through a single integration. No need to manage separate bridge contracts.

10+
Chains Supported
1 API
Unified Access
05

Faster Time-to-Market

Deploy a production-ready, audited cross-chain swap system in weeks, not months. We provide the full stack: smart accounts, relayers, and liquidity routers.

< 4 weeks
Deployment
Full Audit
Pre-Integrated
06

Scalable Transaction Throughput

Handle high-volume swap events with our optimized relayer network and MEV-protected routing. Guaranteed 99.9% uptime SLA for core settlement layer.

99.9%
Uptime SLA
10k+ TPS
Relayer Capacity
Choose Your Path to Cross-Chain Liquidity

Phased Development & Integration Tiers

A structured comparison of our service tiers for implementing Account Abstraction-enabled cross-chain swaps, from a foundational launch to a fully managed enterprise solution.

Feature / DeliverableStarter (Launch)Professional (Scale)Enterprise (Managed)

Custom AA Smart Contract Suite

ERC-4337 Bundler & Paymaster Integration

Basic (Single Chain)

Advanced (Multi-Chain)

Custom (White-label)

Supported Bridge Protocols

1-2 (e.g., Axelar, LayerZero)

3-5 Major Protocols

All Major + Custom Integration

Gas Abstraction & Sponsorship Logic

Pre-configured Templates

Custom User & Session Rules

Dynamic, AI-Optimized Policies

Security Audit Scope

Automated + Manual Review

Comprehensive 3rd-Party Audit

Continuous Audit + Bug Bounty Setup

Deployment & Go-Live Support

Documentation & Guidance

Dedicated Engineer Support

Full Project Management & Hand-off

Infrastructure Monitoring & Alerts

Basic Dashboard Access

Custom Dashboards & API

24/7 SRE Team & PagerDuty

SLA for Incident Response

Best Effort

< 12 Business Hours

< 1 Hour, 24/7

Integration Complexity

Low (Standard DEX UI)

Medium (Custom Wallet/DApp)

High (Full Stack, Enterprise Systems)

Typical Timeline

4-6 Weeks

8-12 Weeks

12+ Weeks (Custom)

Typical Engagement Range

$25K - $50K

$75K - $150K

Custom Quote ($200K+)

how-we-deliver
PREDICTABLE DELIVERY

Our Development & Integration Process

A transparent, phased approach to deliver secure, scalable cross-chain swap infrastructure with Account Abstraction. We guarantee clear milestones, regular demos, and on-time deployment.

01

Discovery & Architecture Design

We analyze your user flows and tokenomics to design a custom AA-powered swap architecture. Deliverables include a technical spec, gas cost analysis, and integration roadmap.

1-2 weeks
Phase Duration
3+
Architecture Options
02

Smart Contract Development & Auditing

Our engineers build modular, gas-optimized contracts for AA wallets (ERC-4337), cross-chain messaging (LayerZero, Axelar), and DEX aggregation. All code undergoes internal review before external audit.

OpenZeppelin
Security Standards
2+ Audits
Per Contract
03

Relayer & Infrastructure Setup

We deploy and configure the critical backend: high-availability Bundler and Paymaster services, RPC nodes across chains, and monitoring dashboards for transaction success rates and fees.

99.9%
Relayer Uptime SLA
< 500ms
RPC Latency
04

Frontend SDK & Integration

Receive a lightweight, typed SDK (React/TypeScript) for seamless integration. We handle connecting AA wallets, fetching cross-chain quotes, and sponsoring gas fees via the Paymaster.

< 3 days
Integration Time
Full Docs
Included
05

Testing & Security Hardening

Comprehensive testing suite including unit tests, integration tests across testnets, and simulated mainnet attack vectors. We perform a final security review before go-live.

100%
Branch Coverage
5+ Chains
Testnet Validation
06

Deployment & Go-Live Support

We manage the mainnet deployment, configure production monitoring alerts, and provide 24/7 support during launch. Includes a handover session and operational runbook for your team.

2 weeks
Stabilization Period
24/7
Launch Support
security-approach
CORE SERVICE

Smart Contract Development

Secure, audited smart contracts built to your exact specifications.

We architect and deploy production-ready smart contracts that form the immutable backbone of your Web3 application. Our development process is built on security-first principles, utilizing battle-tested libraries like OpenZeppelin and rigorous internal audits before deployment to EVM or Solana networks.

  • Custom Logic: Tailored Solidity, Rust, or Vyper contracts for DeFi, NFTs, DAOs, and enterprise use cases.
  • Full Lifecycle: From specification and gas optimization to deployment and upgradeability planning using Transparent or UUPS proxies.
  • Verifiable Security: Every contract undergoes formal verification and receives a comprehensive audit report, ensuring trust and reducing risk before mainnet launch.

We deliver code you can stake your business on. Our contracts power applications handling millions in TVL with a proven track record of zero critical vulnerabilities post-audit.

Account Abstraction & Cross-Chain

Frequently Asked Questions

Get clear answers on our technical approach, timelines, and security for implementing AA-powered cross-chain swaps.

Our standard engagement follows a 4-phase process: Discovery & Architecture (1 week), Smart Contract Development (2-3 weeks), Integration & Testing (1-2 weeks), and Mainnet Deployment (1 week). Most projects launch in 5-7 weeks from kickoff. Complex multi-chain deployments with custom AA logic may extend to 10 weeks. We provide a detailed Gantt chart after the initial scoping call.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team
Account Abstraction Cross-Chain Swaps | Chainscore Labs | ChainScore Guides