We architect and deploy custom smart contracts that form the foundation of your Web3 product. Our development process is built on security-first principles, utilizing OpenZeppelin libraries and rigorous internal audits before deployment.
LABS
Services
StarkNet Cairo Verifiable Achievement Contracts
Provably fair and scalable achievement logic written in Cairo for StarkNet. We deliver custom on-chain credential systems with verifiable computation and privacy for SocialFi platforms.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built to your exact specifications.
- Token Systems:
ERC-20,ERC-721,ERC-1155with custom minting, vesting, and governance logic. - DeFi Protocols: Automated Market Makers (AMMs), staking pools, yield aggregators, and lending vaults.
- Enterprise Logic: Multi-signature wallets, access control systems, and verifiable on-chain data oracles.
We deliver audit-ready code in 2-4 weeks, significantly reducing your time-to-market and technical risk.
key-features-cards
STARK-PROVEN VERIFIABLE ACHIEVEMENTS
Core Capabilities of Our Cairo Achievement Contracts
Our Cairo-based contracts are engineered for enterprises and high-growth startups, delivering provable, on-chain credentials with StarkNet's security and scalability. We focus on tangible outcomes: faster integration, lower costs, and unbreakable trust.
01
Gas-Optimized Cairo 1.0 Contracts
We develop and deploy high-performance achievement contracts using Cairo 1.0, ensuring minimal L2 transaction costs and predictable gas fees for your users. Our code follows StarkWare's best practices for efficiency.
> 90%
Gas Reduction vs L1
Cairo 1.0
Language Standard
02
Formally Verified Logic
Critical contract logic undergoes formal verification using tools like the Cairo verifier. This mathematical proof eliminates entire classes of bugs, providing the highest assurance for credential issuance and validation.
Formal Proof
Security Guarantee
Zero Critical Bugs
Audit History
03
Custom Schema & Attestation Engine
Design bespoke credential schemas (SBTs, badges, proofs) with flexible attestation logic. We build the contracts to mint, revoke, and verify achievements based on your specific business rules and on-chain/off-chain data.
ERC-721/1155
Token Standards
Unlimited Schemas
Flexibility
04
StarkNet L2 Integration Suite
Get a complete integration package: deployed contracts, TypeScript/Go SDKs, and documentation for seamless connection to your frontend and backend. We handle the StarkNet complexity so you can focus on your product.
Full SDK
Developer Experience
< 2 Weeks
Typical Integration
05
Provable Privacy & Selective Disclosure
Implement zero-knowledge proof circuits for credentials, enabling users to prove attributes (e.g., "over 18") without revealing underlying data. Built with Cairo's native ZK capabilities.
ZK-Proofs
Privacy Tech
Cairo Native
Optimal Performance
benefits
PROVEN RESULTS
Business Outcomes for Your SocialFi Platform
Our StarkNet Cairo verifiable achievement contracts deliver measurable improvements in user engagement, platform security, and operational efficiency. Here’s what you can expect.
01
Enhanced User Engagement & Retention
Deploy on-chain achievement systems that increase user session time by 40-60% and boost platform retention by up to 3x. Verifiable credentials create a tangible reputation layer, driving meaningful participation.
40-60%
Session Time Increase
3x
Retention Boost
02
Provably Secure & Trustless Reputation
Build a reputation system immune to Sybil attacks and manipulation. Our Cairo contracts leverage StarkNet's ZK-proofs to verify user achievements without exposing private data, establishing immutable trust.
Zero-Knowledge
Data Privacy
Immutable
On-Chain Record
03
Rapid Integration & Time-to-Market
Go from concept to live deployment in under 3 weeks. We provide modular, audited Cairo contract templates and a full-stack SDK for seamless integration with your existing frontend and backend.
< 3 weeks
Deployment Time
Modular SDK
Integration
04
Scalable & Cost-Efficient Operations
Achieve sub-cent transaction costs for minting and verifying credentials at scale. StarkNet's L2 architecture ensures your SocialFi platform can support millions of users without prohibitive gas fees.
Sub-Cent
Per Transaction Cost
Millions
User Scale
05
Monetizable On-Chain Assets
Transform user achievements into tradable, composable NFTs. Enable new revenue streams through marketplace fees, achievement gating for premium features, and cross-platform credential utility.
ERC-721/1155
Asset Standards
New
Revenue Streams
Choose Your Path to Production
Structured Development Packages
Compare our tiered service levels for StarkNet Cairo verifiable achievement contract development, from initial audit to full lifecycle management.
| Feature / Deliverable | Starter | Professional | Enterprise |
|---|---|---|---|
StarkNet Cairo Smart Contract Audit | |||
Gas Optimization & Performance Review | |||
Deployment & Integration Support | |||
Post-Deployment Monitoring (30 days) | |||
Priority Support Response Time | 48h | 24h | 4h |
Dedicated Technical Account Manager | |||
Custom Verifier Logic Development | |||
Ongoing Maintenance & Upgrade SLA | |||
Typical Project Timeline | 2-3 weeks | 4-6 weeks | 8+ weeks |
Starting Project Investment | $15K | $50K | Custom Quote |
how-we-deliver
FOUNDATION
Blockchain Infrastructure
Enterprise-grade node infrastructure and RPC services with 99.9% uptime SLA.
We provide fully managed, multi-chain infrastructure so your team can focus on building, not operations. Deploy with a single API key.
Eliminate the complexity and cost of running your own nodes. We handle the hardware, maintenance, and scaling.
- Dedicated & Shared Nodes: High-performance
EVM(Ethereum, Polygon, Arbitrum) andnon-EVM(Solana, Aptos) support. - Guaranteed Performance: 99.9% uptime SLA, <100ms latency, and unlimited request tiers.
- Enhanced APIs: Access to historical data, real-time event streams, and archive nodes.
- Security & Compliance: SOC 2 Type II compliant, geo-redundant architecture, and DDoS protection.
tech-stack
ARCHITECTURE
Built on Proven StarkNet Technology
Our StarkNet Cairo Verifiable Achievement Contracts are engineered on a battle-tested ZK-Rollup stack, delivering enterprise-grade scalability and security for your on-chain credentialing system.
03
Sub-Cent Transaction Costs
Achieve massive cost efficiency. Batch thousands of credential issuances or verifications into a single L1 proof, reducing per-operation fees to fractions of a cent.
< $0.01
Avg. Cost
Batched Proofs
Method
04
High-Throughput Finality
Scale to millions of users. StarkNet's architecture supports thousands of transactions per second (TPS) with near-instant finality, eliminating bottlenecks for high-volume credential platforms.
1000+
Potential TPS
~2 sec
Time to Finality
06
Proven Mainnet Deployment
Leverage infrastructure trusted by leading protocols. Our contracts are built on the same StarkNet core that secures billions in TVM for dYdX, Sorare, and Immutable X.
Billions $
Secured TVL
Production
Since 2021
StarkNet Cairo Verifiable Achievement Contracts
Frequently Asked Questions
Get clear answers on our development process, security, and timelines for building custom verifiable achievement systems on StarkNet.
Verifiable Achievement Contracts are on-chain programs that issue, track, and verify user accomplishments (like badges, credentials, or XP) with cryptographic proof. We build them on StarkNet using Cairo for three key reasons: 1) Zero-Knowledge Scalability - issue millions of verifiable proofs with negligible gas fees. 2) Data Privacy - achievements can be verified without revealing underlying user data. 3) Ethereum Security - proofs settle on Ethereum L1, inheriting its security. This is ideal for Web3 gaming, education platforms, and professional credentialing.
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