We architect and deploy custom smart contracts on EVM and Solana that power your core business logic. Our development process is built on security-first principles, utilizing audited libraries like OpenZeppelin and rigorous internal testing to mitigate risk before deployment.
LABS
Services
Account Abstraction Bundler Relay Services
Chainscore provides production-ready, high-throughput bundler and relay infrastructure for ERC-4337 account abstraction, enabling seamless cross-chain user experiences and gas sponsorship for your dApp.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
From tokenization to complex DeFi protocols, we deliver contracts that are gas-optimized, upgradeable, and built to last.
- Full-Stack Delivery: End-to-end development from
Solidity/Rustcode to frontend integration. - Security & Audits: Pre-deployment review, formal verification options, and post-audit support.
- Compliance Ready: Patterns for
ERC-20,ERC-721, and custom standards with built-in regulatory hooks.
key-features-cards
ENTERPRISE-GRADE INFRASTRUCTURE
Core Bundler & Relay Capabilities
Our production-ready bundler and relay services provide the foundational infrastructure for seamless, secure, and scalable Account Abstraction. We handle the complexity so you can focus on user experience.
01
High-Performance Bundler
Deploy a dedicated, high-throughput ERC-4337 bundler with sub-second transaction bundling. Built for scalability, our infrastructure ensures your dApp handles peak loads without compromising speed or reliability.
< 500ms
Avg. Bundle Time
99.9%
Uptime SLA
02
Gas Sponsorship & Paymaster
Implement flexible gas sponsorship models with our integrated Paymaster. Enable gasless transactions, allow users to pay with ERC-20 tokens, or subsidize fees to drive user adoption and onboarding.
Multi-Chain
Sponsorship
ERC-20
Fee Payment
03
Secure UserOp Relaying
Robust and secure relay infrastructure for validating and forwarding UserOperations. We enforce strict security policies and signature verification to protect against replay attacks and malicious intents.
0
Security Incidents
24/7
Threat Monitoring
04
Multi-Chain Deployment
Launch your AA-enabled application across Ethereum, Polygon, Arbitrum, Optimism, and Base with a single integration. We manage chain-specific configurations and RPC endpoints for you.
5+
Networks Supported
Unified API
Single Integration
05
Real-Time Monitoring & Analytics
Gain full visibility into your AA stack with detailed dashboards. Monitor bundler health, track gas sponsorship costs, analyze user session patterns, and receive instant alerts.
Real-Time
Metrics
Custom Alerts
Proactive Notifications
benefits
DELIVERABLES
Business Outcomes for Your Product
Our Account Abstraction Bundler Relay Service is engineered to deliver measurable improvements to your product's performance, user experience, and operational efficiency. Here are the concrete outcomes you can expect.
01
Seamless User Onboarding
Eliminate seed phrase friction with social logins (Google, Apple) and email-based wallet creation. We implement ERC-4337 compliant smart accounts, enabling gas sponsorship and batched transactions for a Web2-like signup flow.
90%+
Reduction in drop-off
< 10 sec
First transaction
02
Predictable Gas Economics
Shift gas fee complexity from your users to your application. Our relay service supports flexible sponsorship models (full, partial, conditional) and multi-chain fee abstraction, giving you full control over user experience and cost predictability.
$0
User gas cost
Fixed-rate
Budget forecasting
03
Enterprise-Grade Reliability
Deploy with confidence on infrastructure built for high-throughput dApps. Our globally distributed relay nodes offer automatic failover, 24/7 monitoring, and are backed by verifiable SLAs for uptime and performance.
99.9%
Uptime SLA
< 200ms
P95 Latency
04
Accelerated Time-to-Market
Integrate a production-ready ERC-4337 stack in weeks, not months. We provide SDKs, comprehensive documentation, and direct engineering support to bypass the complexity of building and maintaining your own bundler infrastructure.
2-4 weeks
Integration timeline
0
Bundler DevOps
06
Scalable Multi-Chain Operations
Deploy a consistent user experience across Ethereum, Polygon, Arbitrum, Optimism, and Base with a single integration. Our service handles chain-specific nuances, ensuring reliable user operations and sponsor transactions on your supported networks.
5+
Supported L2s
Unified API
Single Integration
Bundler-as-a-Service
Technical Specifications & Service Tiers
Compare our managed bundler relay service tiers for Account Abstraction, designed to scale from MVP to enterprise-grade production.
| Feature / Specification | Starter | Professional | Enterprise |
|---|---|---|---|
Monthly Bundled Transactions | Up to 100K | Up to 1M | Unlimited |
Supported Chains | Ethereum, Polygon | Ethereum, Polygon, Arbitrum, Base, Optimism | All EVM chains + Custom RPC |
Uptime SLA | 99.5% | 99.9% | 99.99% |
Mean Time to Inclusion (MTTI) | < 15 seconds | < 5 seconds | < 2 seconds |
Paymaster Integration | Sponsorship Only | Custom Gas Policies + Sponsorship | White-label Paymaster & Gas Abstraction |
Relay Security & Monitoring | Basic Alerts | Advanced Analytics + Fraud Detection | Real-time Threat Intel + Custom Alerting |
Support & Response Time | Community + Email (48h) | Priority Slack (24h) | Dedicated Engineer + 4h SLA |
Compliance & Reporting | Basic Dashboard | Custom Reports + API | SOC 2 Compliance + Audit Trail |
Custom UserOp Validation | |||
Multi-chain Atomic Bundling | |||
Starting Price (Monthly) | $499 | $2,499 | Custom Quote |
how-we-deliver
PREDICTABLE & TRANSPARENT
Our Delivery & Integration Process
A streamlined, four-phase engagement designed for technical teams. We deliver production-ready bundler infrastructure with clear milestones, from architecture to 24/7 support.
01
Phase 1: Architecture & Design
We conduct a technical deep-dive to design a custom bundler architecture for your use case. Deliverables include a detailed spec, gas optimization strategy, and integration roadmap.
Key Deliverables: Technical specification document, gas cost analysis, integration sequence diagram.
1-2 weeks
Design Sprint
3-5 days
Spec Finalization
02
Phase 2: Core Development & Testing
Our engineers build your custom bundler relay service using battle-tested frameworks like Stackup, Alchemy, or Pimlico. We implement paymaster integration, user operation validation, and comprehensive test suites.
Includes: Unit/integration tests, local testnet deployment, and initial security review.
2-4 weeks
Development
100%
Test Coverage
03
Phase 3: Staging & Security Audit
We deploy to a staging environment matching mainnet conditions for rigorous load testing and a final security audit. We simulate high-volume transaction loads and edge cases to ensure reliability.
Includes: Performance benchmark report, audit findings remediation, and go-live checklist.
99.9%
Staging Uptime
< 500ms
P95 Latency
04
Phase 4: Production Deployment & Support
We manage the mainnet deployment, configure monitoring (Grafana/Prometheus), and establish alerting. Your team receives full documentation and enters our ongoing support plan with SLAs.
Outcome: Your bundler is live, monitored, and backed by expert support.
< 1 day
Deployment Window
24/7
Support SLA
Account Abstraction Bundler & Relay Services
Frequently Asked Questions
Get clear answers on how our enterprise-grade bundler infrastructure accelerates your Web3 product development.
We provide a production-ready, fully managed bundler and paymaster relay service. Instead of spending 3-6 months building, testing, and securing your own infrastructure, you can integrate our APIs in under 2 weeks. This includes support for ERC-4337 user operations, gas sponsorship policies, and multi-chain deployment out of the box.
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