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Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
Free 30-min Web3 Consultation
Book Consultation
Smart Contract Security Audits
View Audit Services
Custom DeFi Protocol Development
Explore DeFi
Full-Stack Web3 dApp Development
View App Services
LABS
Services

StarkNet Cairo Oracle Development

Engineer verifiable, trust-minimized price oracles using Cairo for StarkNet. We deliver scalable, low-cost data feeds secured by STARK proofs for your DeFi or on-chain application.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built by Web3-native engineers.

We architect and deploy audit-ready smart contracts on EVM and Solana, turning your product vision into immutable, on-chain logic. Our process delivers 2-4 week MVPs with comprehensive testing and documentation.

  • Security-First Development: Built with Solidity 0.8+ and OpenZeppelin standards, following formal verification patterns.
  • Full Protocol Suite: Custom ERC-20, ERC-721, staking systems, DAO governance, and DeFi primitives.
  • Guaranteed Quality: Every contract undergoes internal review and is prepared for third-party audits from firms like CertiK or Quantstamp.

Reduce your go-to-market risk with battle-tested code that handles millions in TVL. We ensure your core business logic is both powerful and provably secure.

key-features-cards
WHAT WE DELIVER

Core Technical Capabilities

Our StarkNet Cairo oracle development is built on a foundation of deep protocol expertise and enterprise-grade engineering. We deliver secure, performant, and reliable data feeds that power your DeFi, gaming, and institutional applications on StarkNet.

01

Cairo 1.0 Smart Contract Development

We architect and deploy high-assurance oracle contracts in Cairo 1.0, leveraging StarkNet's native language for maximum security and performance. Our contracts integrate OpenZeppelin Cairo libraries and follow established security patterns.

Cairo 1.0
Native Language
OpenZeppelin
Security Standard
02

Custom Data Feed Integration

Build oracles for any data source: price feeds (FX, crypto, commodities), verifiable randomness (VRF), sports/esports outcomes, or proprietary APIs. We handle the complex logic for aggregation, validation, and on-chain delivery.

Any API
Data Source
Multi-source
Aggregation
03

Low-Latency & Gas-Optimized Design

Our oracle architectures are engineered for sub-second data finality and minimal L2 gas consumption. We optimize for the unique cost structure of StarkNet's STARK proofs to keep your operational costs predictable and low.

< 1 sec
Update Latency
Optimized
Gas Costs
04

Security-First Development Lifecycle

From design to mainnet, security is paramount. We employ formal verification techniques where applicable, conduct internal audits, and facilitate third-party audits with leading firms like Nethermind and PeckShield before deployment.

Formal Verification
Methodology
External Audits
Validation
05

Decentralized Oracle Network Design

For production systems requiring high fault tolerance, we design and implement decentralized oracle networks (DONs) on StarkNet. This includes node operator selection, cryptoeconomic incentive models, and slashing condition development.

Byzantine Fault
Tolerance
Cryptoeconomic
Security
06

Integration & Developer Experience

We provide comprehensive integration packages including TypeScript/Python SDKs, detailed documentation, and example dApps. Get from zero to integrated in days, not weeks, with clear testing and monitoring guides.

TypeScript/Python
SDKs
Comprehensive
Documentation
benefits
DELIVERABLES & GUARANTEES

Business Outcomes for Your Project

Our StarkNet Cairo Oracle development service is engineered to deliver measurable results for your business, from accelerated time-to-market to robust, production-ready data feeds.

01

Production-Ready Oracle Feeds

We deliver fully audited, gas-optimized Cairo smart contracts that securely fetch and verify off-chain data, enabling your StarkNet dApp to execute complex logic with reliable price feeds, randomness, or custom API data.

99.9%
Uptime SLA
OpenZeppelin
Audit Standard
02

Reduced Time-to-Market

Leverage our battle-tested oracle patterns and development frameworks to launch your data-dependent StarkNet application in weeks, not months, bypassing the complexity of low-level Cairo development.

< 3 weeks
Avg. Deployment
Pre-built
Core Modules
03

Enhanced Protocol Security

Mitigate oracle manipulation risks with our multi-source data aggregation, decentralized attestation logic, and rigorous security review process, protecting your protocol's assets and user funds.

Multi-Source
Data Aggregation
Formal Verification
Available
04

Cost-Efficient Operations

Our optimized Cairo contracts and efficient L1-L2 messaging strategies minimize StarkNet transaction fees, ensuring your oracle operations remain sustainable at scale without compromising on data freshness.

Up to 40%
Gas Savings
Predictable
Fee Structure
05

Scalable Data Infrastructure

Build with a future-proof architecture designed to handle high-frequency updates and increased load. We ensure your oracle scales seamlessly with your user growth and transaction volume on StarkNet.

Sub-Second
Update Latency
Horizontal
Scalability
06

Expert Technical Partnership

Gain direct access to our team of Cairo specialists and blockchain architects. We provide ongoing support, documentation, and strategic guidance to ensure your oracle integration drives long-term success.

24/7
Dev Support
50+
Projects Delivered
Make the right architectural choice for your StarkNet dApp

Build vs. Buy: Custom Cairo Oracle vs. Generic Feeds

Choosing the right oracle solution is critical for DeFi, gaming, and prediction market applications. This comparison highlights the trade-offs between developing a custom oracle in-house, using a generic data feed, and partnering with Chainscore for a purpose-built solution.

FactorBuild In-HouseUse Generic FeedsChainscore Custom Oracle

Time to Market

4-9 months

2-4 weeks

4-8 weeks

Initial Development Cost

$150K - $400K+

$5K - $20K (integration)

$50K - $150K

Data Customization & Logic

Full control

Limited to provider's feeds

Tailored to your dApp's logic

StarkNet Cairo Expertise Required

Extensive (Senior Devs)

Minimal

Provided by our team

Security & Audit Burden

High (Your responsibility)

Medium (Relies on provider)

Low (We provide audited code)

Integration Complexity

Very High

Low

Medium (We handle the complex parts)

Ongoing Maintenance & Updates

Your team's full-time cost

Provider's roadmap & fees

Optional SLA from $2K/month

SLA for Uptime & Freshness

You build it

99.5% typical

99.9% with penalties

Long-term Total Cost (Year 1)

$300K - $600K+

$25K - $50K+

$75K - $200K

Strategic Advantage

Proprietary IP

None (same as competitors)

Competitive edge with custom data

how-we-deliver
PREDICTABLE, SECURE, AND SCALABLE

Our Development & Integration Process

We deliver production-ready StarkNet oracles through a structured, transparent process designed for technical founders and CTOs. Each phase includes clear deliverables, security checkpoints, and direct collaboration with your engineering team.

01

1. Architecture & Specification

We conduct a deep technical discovery to define your oracle's data sources, update triggers, and fee models. The output is a detailed technical specification document, including Cairo contract architecture and integration points with your dApp.

2-3 days
Discovery Sprint
100%
Spec Sign-off
02

2. Core Cairo Smart Contract Development

Our certified Cairo developers write, test, and optimize the core oracle logic. We implement security patterns from day one, using battle-tested libraries and conducting internal audits for gas efficiency and logic correctness.

OpenZeppelin
Security Patterns
100%
Test Coverage
03

3. Off-Chain Relayer & Data Pipeline

We build the robust off-chain component that fetches, validates, and signs data. This includes failover mechanisms, multi-source aggregation, and secure key management, ensuring 99.9%+ data availability and sub-second update capability.

>99.9%
Data Uptime
< 1 sec
Update Latency
05

5. Testnet Deployment & Staging

We deploy the complete oracle system to StarkNet testnet (Goerli/SEPOLIA) and integrate it with your staging environment. This phase includes load testing, failure simulation, and final validation of all integration scenarios.

Full Load Test
Performance
Staging
Environment Ready
06

6. Mainnet Launch & Ongoing Support

We manage the mainnet deployment and provide comprehensive documentation for your team. Post-launch, we offer monitoring dashboards, incident response, and upgrade support with a 99.9% uptime SLA for the oracle service.

99.9%
Uptime SLA
24/7
Monitoring
security
FULL-STACK INFRASTRUCTURE

Custom Blockchain Development

Build, deploy, and scale custom blockchain networks and applications tailored to your business logic.

We architect and implement bespoke blockchain solutions from the ground up. Our team delivers production-ready networks, sidechains, and Layer 2 solutions designed for your specific throughput, privacy, and consensus requirements.

Go from concept to mainnet in weeks, not months, with our battle-tested development framework.

  • Core Protocol Development: Custom consensus (PoA, PoS), tokenomics, and governance models.
  • Smart Contract Suites: Secure Solidity/Rust contracts for assets, DAOs, and complex business logic.
  • Node Infrastructure: Managed validator networks with 99.9% uptime SLAs and multi-cloud deployment.
  • Cross-Chain Bridges & Interop: Secure, audited bridges connecting your chain to Ethereum, Polygon, and other major networks.
StarkNet Cairo Oracle Development

Frequently Asked Questions

Get clear answers on timelines, costs, security, and process for building high-performance oracles on StarkNet.

From specification to mainnet deployment, a typical custom oracle project takes 4-8 weeks. This includes 1-2 weeks for design and architecture, 2-4 weeks for Cairo smart contract development and unit testing, and 1-2 weeks for security audit and final integration. We provide a detailed project plan with milestones at kickoff.

ENQUIRY

Get In Touch
today.

Our experts will offer a free quote and a 30min call to discuss your project.

NDA Protected
24h Response
Directly to Engineering Team
10+
Protocols Shipped
$20M+
TVL Overall
NDA Protected Directly to Engineering Team
StarkNet Cairo Oracle Development | Chainscore Labs | ChainScore Guides