We architect and deploy custom smart contracts on EVM and Solana that are secure by design. Every contract undergoes a multi-stage audit process before deployment, ensuring your core logic is protected against exploits and vulnerabilities.
LABS
Services
StarkNet Cairo Oracle Integration Library
Production-ready, audited Cairo libraries for verifiably integrating L1 oracle data feeds and verifiable randomness into StarkNet applications. Built with proof-compatible data structures for maximum gas efficiency and security.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built for production, from MVP to enterprise scale.
- Production-Ready Code: Built with
Solidity 0.8+orRust, using battle-tested patterns fromOpenZeppelinandAnchor. - Gas Optimization: We minimize transaction costs by 20-40% through efficient storage and logic design.
- Full Lifecycle Support: From initial spec and
Hardhat/Foundrytesting to mainnet deployment and upgrade management via transparent proxies.
Deliver a market-ready product in as little as 4 weeks with contracts that scale securely and pass due diligence for funding rounds.
key-features-cards
BUILT FOR PRODUCTION
Core Library Capabilities
Our StarkNet Cairo Oracle Integration Library is engineered for reliability and developer velocity. It provides the foundational components to build secure, high-performance DeFi applications with real-world data.
benefits
PRODUCTION-READY INTEGRATION
Why Teams Choose Our Oracle Library
Engineered for StarkNet developers who need reliable, secure, and performant data feeds without the operational overhead. Our library is the foundation for DeFi, gaming, and prediction market protocols.
02
Sub-Second Data Finality
Achieve deterministic oracle updates with latency under 500ms. Our optimized Cairo contracts and aggregation logic ensure your dApp reacts to market movements in near real-time.
< 500ms
Update Latency
10+
Data Sources
03
Gas-Optimized for Scale
Reduce your protocol's operational costs with our library's efficient storage patterns and batchable update functions. Designed for high-frequency applications without compromising on cost.
~40%
Gas Reduction
Batch Updates
Supported
05
Multi-Asset & Custom Feeds
Access 100+ price feeds for crypto, forex, and commodities, or define your own custom data logic (TWAPs, volatility indices) with our flexible adapter framework.
100+
Pre-Built Feeds
Custom Adapters
Supported
06
Enterprise-Grade Reliability
Built for 24/7 uptime with a 99.9% SLA for data availability. Our decentralized node infrastructure and fallback mechanisms ensure your dApp never loses access to critical data.
99.9%
Uptime SLA
Decentralized
Node Network
A Cost-Benefit Analysis for Technical Leaders
Build vs. Buy: Integrating Oracles on StarkNet
Compare the total cost, risk, and time investment of developing a custom oracle solution versus using Chainscore's production-ready Cairo Oracle Integration Library.
| Key Factor | Build In-House | Chainscore Integration Library |
|---|---|---|
Time to Production | 6-12 months | 4-8 weeks |
Initial Development Cost | $150K - $300K+ | $25K - $75K |
Security Audit & Review | High Risk (unaudited) | Low Risk (pre-audited) |
Ongoing Maintenance | Dedicated 2-3 FTE | Optional SLA from $2K/month |
Integration Complexity | High (Cairo, L1-L2 comms) | Low (pre-built adapters) |
Data Feed Coverage | Custom development required | 50+ feeds pre-integrated |
Uptime & Reliability SLA | Your responsibility | 99.9% with monitoring |
Total Year 1 Cost | $200K - $500K | $50K - $150K |
how-we-deliver
PREDICTABLE & TRANSPARENT
Our Delivery & Integration Process
A structured, four-phase engagement model designed for technical leaders. We deliver production-ready StarkNet oracle integrations with clear milestones, dedicated support, and zero surprises.
01
Phase 1: Discovery & Architecture
We conduct a technical deep-dive to define your data requirements, validate Cairo smart contract architecture, and design a gas-optimized integration blueprint. This ensures alignment on scope, security model, and success metrics before a single line of code is written.
1-2 Days
Workshop Duration
Detailed Spec
Deliverable
02
Phase 2: Development & Unit Testing
Our Cairo experts implement the custom oracle adapter library, write comprehensive unit tests with Protostar, and perform initial gas profiling. You receive a private GitHub repo with clean, documented code following Cairo 1.0 best practices.
2-3 Weeks
Typical Timeline
100% Coverage
Unit Test Goal
03
Phase 3: Integration & Security Review
We integrate the library with your StarkNet contracts on a testnet (testnet or devnet), conduct end-to-end integration tests, and perform an internal security audit. This phase de-risks mainnet deployment by catching issues early.
Starknet Testnet
Deployment Target
Security Report
Deliverable
04
Phase 4: Deployment & Handoff
We manage the mainnet deployment process, provide final documentation and operational runbooks, and conduct a knowledge transfer session with your engineering team. You gain full ownership of the code with ongoing support options.
SLA-Based
Ongoing Support
Full Ownership
Code Handoff
Technical & Commercial Details
StarkNet Oracle Integration FAQs
Get clear answers on timelines, costs, and technical specifics for integrating secure, low-latency oracles into your StarkNet application.
A standard integration with 2-3 data feeds (e.g., ETH/USD, BTC/USD) takes 2-4 weeks from kickoff to mainnet deployment. Complex integrations with custom logic, multiple sources, or novel data types can extend to 6-8 weeks. Our agile process includes a 1-week discovery phase to finalize requirements and provide a fixed timeline.
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