We architect and deploy custom smart contracts that form the backbone of your Web3 application. Our development process is built on security-first principles, utilizing OpenZeppelin libraries and comprehensive audit workflows to mitigate risk from day one.
LABS
Services
EVM Paymaster System Design
We architect and implement custom ERC-4337 paymaster contracts and bundler infrastructure for Ethereum and EVM L2s, enabling gasless user onboarding and transaction sponsorship with flexible payment policies.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
Deliver a secure, audited, and fully functional smart contract suite in as little as 4 weeks.
- Token Standards:
ERC-20,ERC-721,ERC-1155, and custom implementations. - Protocol Logic: Automated market makers (AMMs), staking pools, governance systems, and multi-signature wallets.
- Key Deliverables: Full test coverage, gas optimization reports, and deployment scripts for
EVM-compatible chains.
key-features-cards
ARCHITECTURE OVERVIEW
Core Components of Our Paymaster System
Our modular, enterprise-grade paymaster system is built for reliability, security, and seamless integration. Each component is designed to abstract gas complexity and accelerate your go-to-market timeline.
01
Gas Abstraction Engine
Handle gas sponsorship for any ERC-4337 UserOperation with deterministic cost calculation. We manage fee estimation, token conversions, and sponsor transactions across multiple EVM chains, so your users never need native tokens.
< 100ms
Quote Response
20+ Chains
Supported
02
Policy & Risk Management Layer
Define granular sponsorship rules (allow/deny lists, transaction limits, dApp whitelisting) via an intuitive dashboard. Our real-time risk engine prevents abuse and ensures predictable operational costs.
Real-time
Fraud Detection
Granular
Rule Sets
03
Relayer Network with High Availability
A globally distributed, load-balanced network of relayers ensures sub-second transaction submission and 99.9% uptime. Built-in redundancy and automatic failover guarantee your dApp's operations never stall.
99.9%
Uptime SLA
< 1 sec
Relay Latency
04
Multi-Token Payment Hub
Allow users to pay fees in stablecoins (USDC, USDT) or your project's native token. Our system handles on-chain swaps via integrated DEX aggregators for optimal rates and seamless settlement.
50+ Tokens
Supported
Optimized
Swap Routing
06
Real-time Analytics & Webhooks
Monitor sponsorship volume, cost trends, and user activity through a dedicated dashboard. Receive instant webhook notifications for failed transactions, low balances, or policy violations.
Live
Dashboard
Instant
Alerting
benefits
STRATEGIC ADVANTAGES
Business Outcomes: Why Deploy a Custom Paymaster
A custom Paymaster is a critical infrastructure component that directly impacts user experience, operational costs, and business model innovation. Here’s what a purpose-built system delivers.
01
User Onboarding & Retention
Remove the primary friction point for new users by abstracting gas fees. Enable sponsored transactions, gasless interactions, and pay-with-ERC20 models to drive adoption and increase user retention by up to 40%.
40%
Higher Retention
0 ETH
User Entry Cost
02
Predictable & Reduced Costs
Gain granular control over your gas expenditure. Implement batch processing, dynamic fee optimization, and sponsor rules to lower your effective cost per transaction by 15-30% versus public relayers.
15-30%
Cost Reduction
Real-time
Fee Analytics
03
Monetization & Business Logic
Embed your revenue model directly into the transaction flow. Create subscription services, take fees in your native token, or implement custom sponsorship logic (e.g., free txs for high-volume traders) to unlock new revenue streams.
New
Revenue Stream
Flexible
Pricing Models
04
Enhanced Security & Compliance
Deploy with enterprise-grade security. Our systems include rate limiting, fraud detection, whitelist/blacklist management, and integration with compliance tools, all built on audited smart contract templates.
Audited
Codebase
SOC 2
Infrastructure
05
Operational Control & Reliability
Eliminate dependency on third-party relayers. Own your transaction queue, guarantee 99.9% uptime with multi-RPC fallbacks, and maintain full control over sponsorship policies and user experience.
99.9%
Uptime SLA
Full
Policy Control
06
Faster Time-to-Market
Leverage our battle-tested Paymaster framework and deployment pipeline. Go from design to a production-ready, custom Paymaster on Ethereum, Polygon, or Arbitrum in under 3 weeks.
< 3 weeks
To Production
Multi-chain
Deployment
Choose Your EVM Paymaster Integration
Structured Development Paths
Compare our tiered service packages designed to match your project's scale, timeline, and operational requirements.
| Feature | Starter | Professional | Enterprise |
|---|---|---|---|
Custom Paymaster Contract Development | |||
Gas Abstraction Logic (ERC-4337) | Basic | Advanced (Multi-token) | Custom & White-label |
Smart Contract Security Audit | 1-Pass Review | Full Audit + Report | Multi-firm Audit |
Deployment & Integration Support | Self-service guides | Hands-on deployment | Full-stack integration |
Supported Networks | 1 Mainnet | Up to 3 Mainnets | Unlimited (EVM L1/L2) |
Monitoring & Alerting | Basic dashboard | Advanced analytics & alerts | 24/7 SOC2-compliant monitoring |
SLA for Critical Issues | 24h response | 4h response with escalation | |
Team Expertise Access | Email support | Weekly check-ins | Dedicated technical account manager |
Estimated Timeline | 2-4 weeks | 4-8 weeks | 8-12 weeks |
Starting Price | $15,000 | $50,000 | Custom Quote |
how-we-deliver
END-TO-END EXECUTION
Our Development & Deployment Process
A structured, security-first approach to deliver a production-ready EVM Paymaster system. We focus on rapid deployment and long-term operational resilience.
01
Architecture & Smart Contract Design
We design modular, upgradeable smart contracts using Solidity 0.8+ and OpenZeppelin libraries. Our architecture separates logic for gas sponsorship, user verification, and fund management to ensure security and flexibility.
OpenZeppelin
Security Standard
Modular
Architecture
02
Security Audit & Formal Verification
Every Paymaster contract undergoes rigorous testing and a third-party security audit. We implement formal verification for critical functions to eliminate vulnerabilities before mainnet deployment.
Third-Party
Security Audit
Formal
Verification
03
Relayer Infrastructure Deployment
We deploy high-availability relayer nodes with automatic failover, load balancing, and real-time monitoring. Infrastructure is provisioned on AWS/GCP with 99.9% uptime SLA.
99.9%
Uptime SLA
Auto-Scaling
Infrastructure
04
Integration & Go-Live Support
We handle full integration with your dApp's frontend and backend, including SDK implementation and wallet connection. Provide 24/7 monitoring and support for the first 30 days post-launch.
Full SDK
Integration
30 Days
Launch Support
security
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
We architect and deploy custom smart contracts that form the backbone of your Web3 product. Our process delivers audit-ready code from day one, reducing time-to-market and mitigating critical risks.
- Full Lifecycle Development: From ideation and
Solidity/Rustdevelopment to deployment onEVM/Solanaand post-launch maintenance. - Security-First Approach: Code follows
OpenZeppelinstandards, undergoes internal review, and is optimized for third-party audits by firms like CertiK or Quantstamp. - Gas Optimization: Every contract is engineered for minimum transaction costs and maximum efficiency on mainnet.
We build the immutable logic that powers your tokens, DeFi protocols, and NFT ecosystems with enterprise-grade reliability.
Our deliverables include comprehensive documentation, deployment scripts, and a technical whitepaper outlining contract architecture and security assumptions. We specialize in:
ERC-20,ERC-721,ERC-1155tokens with custom minting/burning logic.- DeFi Primitives: Automated Market Makers (AMMs), staking pools, and yield aggregators.
- Governance Systems: DAO frameworks with proposal and voting mechanisms.
Partner with our team of 50+ blockchain engineers who have deployed over 200 contracts collectively. We provide a fixed-scope proposal with clear milestones, typically delivering an MVP suite of contracts in 4-6 weeks. Let's discuss your contract requirements.
Technical & Commercial Questions
Paymaster Development FAQs
Answers to common questions from CTOs and engineering leads evaluating custom EVM Paymaster development.
A standard, production-ready EVM Paymaster system with core features (sponsorship, gas abstraction, policy engine) is typically delivered in 2-4 weeks. Complex integrations with custom token logic, multi-chain deployments, or advanced analytics dashboards can extend this to 6-8 weeks. We provide a detailed project plan with milestones during the initial scoping 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