We architect and deploy custom smart contracts that are secure, gas-optimized, and tailored to your exact business logic. Our development process is built on Solana, EVM, and Move-based chains using industry-standard patterns from OpenZeppelin and Anchor.
LABS
Services
StarkNet Cairo Bridge Development
We engineer STARK-proof verified bridges for the StarkNet L2. Our team writes and audits core logic in Cairo to enable efficient, trust-minimized asset movement to and from Ethereum and other L2s.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 specialists for your token, DeFi, or NFT project.
- Full Lifecycle Development: From initial design and
Solidity/Rustcoding to deployment, verification, and ongoing maintenance. - Security-First Approach: Every contract undergoes rigorous internal audits and testing before we recommend third-party review.
- Gas Optimization: We write efficient code to minimize transaction fees, a critical factor for user adoption and protocol sustainability.
Deliver a fully audited, mainnet-ready contract suite in 4-6 weeks, reducing your technical risk and accelerating your go-to-market timeline.
key-features-cards
BUILDING THE FUTURE OF CROSS-CHAIN LIQUIDITY
Core Bridge Development Capabilities
Our full-stack StarkNet bridge development delivers secure, scalable, and seamless interoperability. We build production-ready bridges with battle-tested security and enterprise-grade reliability.
01
Custom Cairo Smart Contracts
We develop and audit high-assurance Cairo 1.0 smart contracts for your bridge's core logic, including message passing, asset locking/minting, and governance. Built with OpenZeppelin libraries and formal verification best practices.
Cairo 1.0
Language
Formal Verification
Security Standard
02
Secure Validator & Relayer Networks
Architect and deploy decentralized validator or permissioned relayer networks with multi-signature schemes and slashing conditions. We ensure high availability and Byzantine fault tolerance for your bridge's security layer.
> 99.9%
Relayer Uptime
BFT Consensus
Network Type
03
Gas-Optimized Frontend Integration
Deliver seamless user experiences with React/Next.js dApps featuring real-time transaction status, fee estimation, and wallet connectivity (Argent, Braavos). We optimize for minimal L1 gas costs on withdrawals.
< 2s
UI Update Speed
ERC-20/721
Asset Support
05
Monitoring & Incident Response
We implement 24/7 monitoring dashboards (Grafana, Prometheus) for bridge health, anomaly detection, and automated alerts. Includes playbooks for emergency pauses and rapid response protocols.
24/7
Monitoring
< 5 min
Alert Response SLA
06
Mainnet Deployment & Support
We manage the full deployment lifecycle from testnet (Goerli, Sepolia) to mainnet, including configuration, stress testing, and go-live. Includes 30 days of post-launch support and operational handoff.
2-4 weeks
Time to Mainnet
30 days
Post-Launch Support
benefits
DELIVERABLES & GUARANTEES
Business Outcomes for Your Project
Our StarkNet Cairo Bridge Development service delivers more than just code. We provide production-ready infrastructure with measurable outcomes that accelerate your time-to-market and secure your assets.
Choose Your Integration Path
StarkNet Bridge Development Tiers
Compare our structured service packages for building a secure, high-performance StarkNet bridge. Each tier is designed to meet specific technical and operational requirements, from rapid prototyping to enterprise-grade deployment.
| Feature / Deliverable | Starter | Professional | Enterprise |
|---|---|---|---|
Custom Bridge Smart Contracts (Cairo/Solidity) | |||
Comprehensive Security Audit Report | 1 Round | 2 Rounds | 3 Rounds + Formal Verification |
Multi-Chain Support (e.g., Ethereum, Arbitrum) | Ethereum Only | Up to 3 Chains | Unlimited (Custom) |
Gas Optimization & Fee Analysis | Basic | Advanced | Custom Relayer Design |
Deployment & Mainnet Launch Support | |||
Integration Support (Wallet, Frontend SDK) | Documentation | Basic SDK | Full SDK + Dedicated Engineer |
Post-Launch Monitoring & Alerting | 7 Days | 30 Days | 24/7 with SLA |
Incident Response Time SLA | 24h | 1h | |
Ongoing Maintenance & Upgrade Support | Optional Retainer | Included | |
Typical Project Timeline | 3-5 Weeks | 6-10 Weeks | Custom |
Estimated Investment | From $25K | From $75K | Custom Quote |
how-we-deliver
PROVEN METHODOLOGY
Our Cairo-Centric Development Process
We deliver production-ready StarkNet bridges using a battle-tested, security-first development lifecycle designed for enterprise-grade reliability and rapid deployment.
01
Architecture & Cairo Design
We architect your bridge's core logic in Cairo 1.0, focusing on state management, cross-chain message formats, and gas-efficient proof verification. This includes designing for future protocol upgrades and composability.
Cairo 1.0
Language Standard
< 1 week
Design Sprint
02
Secure Contract Implementation
Development of the bridge's Cairo smart contracts (verifier, message relay) and Solidity L1 escrow/controller, adhering to OpenZeppelin patterns and formal verification principles for critical security.
100%
Test Coverage
OpenZeppelin
Security Standard
03
Rigorous Testing & Auditing
Comprehensive unit, integration, and fuzz testing using Protostar. Our code undergoes internal review before submission to leading third-party auditors like Nethermind or ABDK for final verification.
2+ Audits
External Reviews
Protostar
Testing Suite
04
Deployment & Mainnet Launch
We manage the full deployment pipeline to StarkNet testnet and mainnet, including contract verification on Voyager, frontend integration, and establishing monitoring/alerting for the production system.
2-3 weeks
Avg. Timeline
Voyager
Block Explorer
security
STRATEGIC ARCHITECTURE
Blockchain Infrastructure Consulting
Design and implement secure, scalable blockchain foundations tailored to your business model.
We architect the core infrastructure that powers your Web3 application, from network selection to node orchestration. Our focus is on production-ready systems with 99.9% uptime SLAs and multi-region redundancy.
- Protocol & Chain Selection: Objective analysis of
EVM,Solana,Cosmos, orStarknetbased on your needs for cost, speed, and ecosystem. - Node Infrastructure: Managed
RPC/APIendpoints, archival nodes, and validator setups with enterprise-grade security. - Data Pipeline Design: Real-time indexing (
The Graph, custom subgraphs) and off-chain computation layers for complex dApp logic.
We deliver a detailed technical blueprint and implementation roadmap, de-risking your infrastructure build and accelerating time-to-market by 60-70%.
Technical & Commercial Details
StarkNet Bridge Development FAQ
Get clear answers on timelines, costs, security, and our development process for your StarkNet bridge project.
A standard, production-ready StarkNet bridge with core functionality (deposit/withdrawal, asset mapping, basic UI) typically deploys in 2-4 weeks. Complex features like multi-asset support, custom governance, or advanced fraud proofs extend this to 6-8 weeks. We provide a detailed sprint-by-sprint timeline after the initial technical scoping call.
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