We architect and deploy custom smart contracts that form the secure, immutable backbone of your application. Our development process is built on audited best practices using Solidity 0.8+ and OpenZeppelin libraries to mitigate risk from day one.
LABS
Services
StarkNet Cairo Paymaster Development
We build custom Cairo smart contracts for StarkNet paymasters, enabling complex gas sponsorship rules and seamless fee abstraction for your ZK-rollup applications.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts.
- Token Systems:
ERC-20,ERC-721, andERC-1155with custom minting, vesting, and governance logic. - DeFi Protocols: Automated Market Makers (AMMs), staking pools, and yield aggregators with optimized gas efficiency.
- Enterprise Logic: Multi-signature wallets, supply chain tracking, and asset tokenization for real-world use cases.
From initial audit to mainnet deployment, we ensure your contracts are secure, scalable, and ready for user adoption.
Our iterative development cycle delivers a production-ready MVP in 2-4 weeks, followed by comprehensive security reviews and on-chain deployment support.
key-features-cards
BUILT FOR SCALE
Core Paymaster Development Capabilities
Our StarkNet Cairo Paymaster development delivers production-ready infrastructure that abstracts gas complexity, enhances user experience, and unlocks new business models. We build with security-first principles and proven architectural patterns.
01
Custom Paymaster Logic
We develop bespoke paymaster contracts in Cairo to implement your specific sponsorship rules, from whitelisted operations and fee subsidies to subscription-based models and token-gated transactions.
OpenZeppelin
Security Patterns
Cairo 1.0+
Language
02
Gas Abstraction & Sponsorship
Design and deploy systems where users pay fees in ERC-20 tokens (like USDC, STRK) or enjoy fully sponsored transactions, removing the native token barrier for mainstream adoption.
Multi-Token
Fee Support
0 Gas UX
For End Users
03
Security Audits & Formal Verification
Every paymaster undergoes rigorous security analysis. We integrate formal verification with Cairo's native prover and partner with leading audit firms for independent reviews before mainnet deployment.
Formal Proofs
Critical Logic
Third-Party
Audit Ready
04
Relayer Infrastructure
We build and deploy high-availability relayers that securely sign and broadcast sponsored transactions, ensuring 99.9% uptime and sub-second processing for seamless user experiences.
99.9%
Uptime SLA
< 500ms
Processing
05
Integration & Wallet Support
Seamless integration with major wallets (Argent, Braavos) and dApp SDKs. We provide comprehensive documentation and client libraries for easy adoption across your frontend and backend.
Argent/Braavos
Wallet Ready
Full SDK
Provided
06
Monitoring & Analytics Dashboard
Gain real-time visibility into sponsorship costs, user adoption, and system health with a custom dashboard. Track KPIs like cost-per-user, transaction volume, and gas savings.
Real-Time
Metrics
Cost Analytics
Per User
benefits
STRATEGIC ADVANTAGES
Business Outcomes of a Custom Paymaster
A custom StarkNet Paymaster is not just infrastructure; it's a strategic business tool. We build solutions that directly enhance your product's competitiveness, user experience, and unit economics.
01
Zero-Friction User Onboarding
We implement sponsored transaction fees so users can interact with your dApp without holding ETH for gas. This removes the primary barrier to entry, increasing user acquisition and retention by up to 40%.
40%
Higher Onboarding
0 ETH
User Gas Cost
02
Predictable & Reduced Gas Costs
Our paymasters use gas abstraction and optimization to batch transactions and leverage stablecoin fee payments. This gives you predictable operational costs and can reduce your effective gas expenditure by 15-30%.
15-30%
Gas Savings
Fixed Rate
Cost Predictability
03
Enhanced Security & Compliance
We build with OpenZeppelin libraries and implement rate-limiting, fraud detection, and multi-signature controls. Every contract undergoes a formal verification process to ensure fund safety and operational integrity.
Formal Verification
Security Standard
Multi-Sig
Treasury Control
04
Custom Token Utility & Loyalty
Enable users to pay fees with your project's native token. This creates a powerful utility sink, drives token demand, and fosters deeper ecosystem loyalty, directly tying usage to your tokenomics.
Direct Utility
Token Sink
Increased Demand
Tokenomics Boost
05
Faster Time-to-Market
Leverage our pre-audited, modular Cairo contracts and deployment frameworks. We deliver a production-ready, custom paymaster integrated with your stack in 3-4 weeks, not months.
3-4 weeks
To Production
Modular
Pre-Audited Code
06
Scalable Infrastructure
Our architecture is designed for high throughput and 99.9% uptime. We implement automated monitoring, failover mechanisms, and seamless upgrades to ensure reliability as your transaction volume grows.
99.9%
Uptime SLA
Auto-Scaling
Infrastructure
Choose Your Development Path
StarkNet Paymaster Development Tiers
Compare our structured service packages for building a custom, gas-abstracting StarkNet paymaster. Each tier includes Cairo smart contract development, testing, and deployment.
| Feature / Deliverable | Starter | Professional | Enterprise |
|---|---|---|---|
Cairo 1.0 Paymaster Core | |||
Custom Sponsorship Logic | Basic Rules | Advanced Rules | Complex Multi-Sig |
Multi-Asset Fee Payment | STRK Only | STRK + 2 Tokens | STRK + ERC-20 Whitelist |
Smart Contract Audit | Internal Review | Third-Party Audit | Third-Party Audit + Formal Verification |
Integration Support | Documentation | Guided Setup | Dedicated Engineer |
Deployment & Configuration | Testnet Only | Testnet + Mainnet | Multi-Chain Deployment |
Monitoring & Alerting | Basic Logs | Dashboard + Alerts | 24/7 SLA & PagerDuty |
Post-Launch Support | 30 Days | 90 Days | 12-Month Retainer |
Estimated Timeline | 3-4 Weeks | 6-8 Weeks | 10-12 Weeks |
Starting Price | $25,000 | $75,000 | Contact for Quote |
how-we-deliver
TRANSPARENT & PREDICTABLE
Our Development & Delivery Process
A structured, security-first approach to deliver production-ready StarkNet paymaster solutions. We de-risk your project with clear milestones, expert audits, and guaranteed outcomes.
01
Discovery & Architecture Design
We analyze your transaction flow and user model to design a custom paymaster architecture. We define gas abstraction strategies, fee sponsorship logic, and integration points with your existing stack.
1-2 weeks
Design Phase
100%
Requirement Lock
02
Smart Contract Development
Our Cairo experts write, test, and optimize your paymaster core logic. We implement features like ERC-20 fee payment, batch sponsorship, and whitelist management using battle-tested patterns.
Cairo 1.0+
Language
OpenZeppelin
Standards
03
Security Audit & Formal Verification
Every paymaster undergoes rigorous internal review and optional third-party audit. We use static analyzers and property-based testing to verify logic correctness and protect user funds.
2 Audits
Minimum
0 Critical
Guarantee
04
Testnet Deployment & Integration
We deploy to StarkNet testnet and integrate the paymaster with your dApp frontend and backend. We conduct end-to-end testing of user journeys and gas sponsorship scenarios.
Goerli/Sepolia
Testnets
Full E2E
Testing
05
Mainnet Launch & Monitoring
We manage the secure mainnet deployment and configure real-time monitoring for transaction success rates, gas costs, and contract health. We provide a 24/7 incident response SLA.
99.9%
Uptime SLA
< 1 hour
Response Time
06
Documentation & Handover
You receive comprehensive technical documentation, admin guides, and integration SDKs. We conduct knowledge transfer sessions with your engineering team for full operational ownership.
Full SDK
Delivered
2 Sessions
Knowledge Transfer
security
CORE SERVICES
Blockchain Infrastructure Development
Build and scale secure, high-performance blockchain foundations for your Web3 product.
We architect and deploy the foundational infrastructure your application needs to perform. This includes custom RPC nodes, indexers, and oracles with 99.9% uptime SLAs. We ensure your stack is resilient, scalable, and cost-optimized from day one.
- Node Infrastructure: Managed
EVMandSolanaRPC endpoints with global low-latency. - Data Indexing: Custom subgraphs and indexers for real-time on-chain data access.
- Oracle Integration: Secure price feeds and off-chain data via
Chainlinkand Pyth. - DevOps & Monitoring: Automated deployment, health dashboards, and 24/7 alerting.
Deploy a production-ready infrastructure layer in under 3 weeks, eliminating months of DevOps complexity and capital expenditure on hardware.
Technical & Commercial Insights
StarkNet Paymaster Development FAQs
Get clear answers to the most common questions from CTOs and founders about building a custom StarkNet paymaster.
A standard paymaster deployment takes 2-4 weeks from kickoff to mainnet. This includes design, Cairo development, testing, and deployment. Complex integrations (e.g., multi-token, subscription models) or custom gas abstraction logic may extend this to 6-8 weeks. We provide a detailed sprint-by-sprint timeline in our initial proposal.
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