We architect and implement bespoke blockchain solutions tailored to your business logic. From private consortium chains to public layer-2 networks, we handle the complete stack—consensus, smart contracts, nodes, and APIs—so you can focus on your product.
LABS
Services
ERC-4337 Account Abstraction Bundler & Paymaster Services
We build and manage the custom ERC-4337 infrastructure for your smart contract-based savings accounts. Deploy a dedicated bundler for transaction processing and a paymaster to sponsor user gas fees, enabling seamless, non-custodial onboarding.
Chainscore © 2026
overview
FULL-STACK INFRASTRUCTURE
Custom Blockchain Development
Build, deploy, and scale custom blockchain networks and applications with production-ready infrastructure.
Deliver a secure, high-performance network in weeks, not months, with a fixed-scope engagement.
- Core Protocol Development: Custom
EVM-compatible chains,Substrate-based parachains, andCosmos SDKapp chains. - Node & Validator Infrastructure: Automated deployment, monitoring, and 99.9% uptime SLA for your network's backbone.
- Integration & Tooling: Wallets, explorers, indexers, and bridges to connect with existing systems and other chains.
- Security First: All code undergoes formal verification and audits by our in-house security team before mainnet launch.
key-features-cards
PRODUCTION-READY
Core Infrastructure Components We Deliver
We build and manage the essential infrastructure for ERC-4337, so your team can focus on your core product. Each component is deployed, monitored, and scaled for you.
01
High-Performance Bundler
A dedicated, load-balanced bundler node that aggregates and submits UserOperations to the blockchain. We ensure sub-2-second latency and 99.9% uptime with multi-chain support.
99.9%
Uptime SLA
< 2 sec
Avg. Latency
02
Gas Abstraction Paymaster
A secure, policy-driven paymaster service enabling gasless transactions and sponsored fees. Supports flexible sponsorship models and multi-token payment with real-time analytics.
0.1%
Fee on Sponsored Gas
24/7
Policy Monitoring
03
Account Factory Contracts
Deployable, audited smart account factory contracts for ERC-4337. We provide custom implementations for social recovery, multi-signature setups, and session keys.
2 weeks
Avg. Deployment
OpenZeppelin
Audit Standard
04
UserOperation Mempool Monitor
A real-time monitoring and alerting system for your UserOperation mempool. Track pending transactions, detect anomalies, and prevent failed transactions before submission.
100 ms
Alert Latency
99%
Failure Prevention
05
Multi-Chain EntryPoint Router
Intelligent routing layer that directs UserOperations to the most efficient and cost-effective EntryPoint contract across supported EVM chains (Ethereum, Polygon, Arbitrum, etc.).
10+
Chains Supported
15%
Avg. Gas Savings
benefits
DRIVEN BY ACCOUNT ABSTRACTION
Business Outcomes for Your Savings Product
Deploy a user-friendly, secure, and operationally efficient savings application by leveraging our managed ERC-4337 infrastructure. We deliver the technical foundation so you can focus on growth.
01
Frictionless User Onboarding
Eliminate seed phrase complexity and enable social logins, email wallets, and one-click transactions. Users can deposit and earn yield in under 60 seconds without prior crypto experience.
< 60 sec
First Deposit
0
Seed Phrases
02
Gasless Transaction Experience
Sponsor user gas fees via our Paymaster service. Users interact with your dApp for free, removing a major adoption barrier and enabling predictable user acquisition costs.
100%
Gas Sponsored
Pay-per-User
Cost Model
03
Enhanced Security & Recovery
Implement social recovery, multi-signature approvals, and transaction batching. Protect user assets with customizable security rules and reduce support tickets related to lost access.
SOC 2
Compliance
24/7
Monitoring
04
Operational Efficiency at Scale
Our high-availability Bundler network ensures sub-second transaction processing and 99.9% uptime. Automate user operations and scale seamlessly without infrastructure overhead.
99.9%
Uptime SLA
< 2 sec
Tx Finality
05
Flexible Subscription & Automation
Enable automated, recurring deposits and yield harvesting directly from smart accounts. Create predictable revenue streams and increase user retention through scheduled financial actions.
ERC-4337
Native Support
Custom Rules
Logic
06
Rapid Integration & Time-to-Market
Leverage our SDKs and developer APIs to integrate full ERC-4337 functionality in weeks, not months. We provide the infrastructure, audits, and support for a secure launch.
< 4 weeks
Integration
Full SDK
Provided
Choose Your Integration Path
Implementation Tiers & Deliverables
A detailed comparison of our ERC-4337 Bundler & Paymaster service packages, from rapid prototyping to enterprise-grade deployment.
| Feature / Deliverable | Rapid Prototype | Production Ready | Enterprise Scale |
|---|---|---|---|
Bundler Node Deployment | |||
Custom Paymaster Contract | Basic Gas Sponsorship | Advanced Sponsorship Rules | Fully Custom Logic & Policies |
Smart Contract Audit | Peer Review | Formal Audit Report | Formal Audit + Continuous Security Review |
Supported Networks | 1 Testnet | Ethereum + 2 L2s | All EVM Chains + Custom RPCs |
User Operation Throughput | Up to 100 OPS/sec | Up to 1,000 OPS/sec | 10,000+ OPS/sec with Auto-scaling |
Monitoring & Alerting | Basic Dashboard | Advanced Metrics + Alerts | Custom Dashboards & 24/7 SRE Support |
SLA & Support | Community Support | 99.5% Uptime, 12h Response | 99.9% Uptime, 1h Response, Dedicated Engineer |
Integration Timeline | 2-3 Weeks | 4-6 Weeks | 8-12 Weeks |
Implementation Cost | From $15K | From $50K | Custom Quote |
how-we-deliver
PROVEN METHODOLOGY
Our Development & Deployment Process
A structured, security-first approach to deliver production-ready ERC-4337 infrastructure. We focus on rapid integration, operational excellence, and measurable outcomes for your team.
01
Architecture & Design Review
We analyze your dApp's user flows and transaction patterns to design an optimal bundler and paymaster architecture. This ensures gas efficiency, scalability, and seamless user onboarding from day one.
1-3 days
Design Sprint
100%
Custom Architecture
02
Smart Contract Development & Auditing
Our team builds and hardens your custom paymaster logic using Solidity 0.8+ and OpenZeppelin libraries. Every contract undergoes internal review and is prepared for formal security audits.
OpenZeppelin
Security Standards
Formal Verification
Audit-Ready
03
Bundler Node Deployment
We deploy a dedicated, high-availability bundler node on your chosen infrastructure (AWS, GCP, Bare Metal). Configuration includes mempool management, RPC optimization, and monitoring setup.
99.9%
Uptime SLA
< 500ms
P95 Latency Target
04
Paymaster Service Integration
We integrate the paymaster service with your backend for sponsor logic, implement gas policy rules, and set up secure signing mechanisms. Includes fail-safes and real-time analytics.
2-5 days
Integration Time
Multi-Chain
Supported
05
Staging & Load Testing
Your infrastructure undergoes rigorous testing in a staging environment that mirrors mainnet conditions. We simulate high transaction loads to validate performance and resilience.
1000+ TPS
Load Tested
Full Regression
Test Suite
06
Production Launch & Monitoring
We manage the mainnet deployment, configure alerting (Discord/Slack/PagerDuty), and provide a dashboard for tracking key metrics: user ops, gas sponsorship, and bundler health.
24/7
Monitoring
< 2 weeks
Total Timeline
Account Abstraction Services
Frequently Asked Questions
Get clear answers about our ERC-4337 bundler and paymaster development, deployment, and support.
For a standard, production-ready ERC-4337 bundler or paymaster, we deliver in 3-5 weeks. This includes design, development, security review, and deployment to your specified testnet and mainnet. Complex integrations (e.g., custom gas policies, multi-chain support) may extend this to 6-8 weeks. We provide a detailed project plan with milestones at kickoff.
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