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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

Cairo StarkNet Verifiable Data Feeds

We design and deploy custom verifiable data feed systems for StarkNet, using Cairo and STARK proofs to cryptographically guarantee the integrity and authenticity of off-chain data consumed by your L2 applications.
Chainscore © 2026
overview
CORE SERVICES

Blockchain Infrastructure Development

Build and scale your Web3 foundation with battle-tested, high-performance infrastructure.

We architect and deploy the foundational layer for your decentralized application, ensuring 99.9% uptime SLA, sub-2-second block times, and enterprise-grade security. Our infrastructure is built for scale from day one.

Stop managing nodes. We provide fully managed, protocol-specific infrastructure so your team can focus on product, not plumbing.

  • Node Operations: Dedicated EVM (Ethereum, Polygon, Arbitrum) and Solana RPC endpoints with load balancing and failover.
  • Indexing & Data: Custom Graph Protocol subgraphs and real-time event listeners for on-chain data.
  • Security & Monitoring: 24/7 threat detection, automated alerts, and compliance-ready audit trails.
  • Multi-Chain Strategy: Architecture design for optimal deployment across L1s and L2s to balance cost, speed, and security.
key-features-cards
BUILT FOR PRODUCTION

Core Components of Our Verifiable Feed Service

Our Cairo-based verifiable data feed service is engineered for enterprise-grade reliability, security, and performance. Each component is designed to deliver provably correct, low-latency data to your StarkNet applications.

01

Cairo Smart Contract Framework

Production-ready, audited Cairo smart contracts for data aggregation, validation, and on-chain publishing. Built with STARK-proof security patterns for tamper-proof data delivery.

100%
Formally Verified
OpenZeppelin
Security Standards
02

High-Performance Oracle Network

A decentralized network of node operators sourcing and attesting to real-world data with cryptographic signatures, ensuring data integrity and high availability for your dApps.

99.9%
Uptime SLA
< 1 sec
Median Latency
03

STARK-Based Proof Generation

On-demand generation of zero-knowledge proofs (STARKs) that cryptographically verify the correctness of off-chain computations and data before on-chain settlement.

Trail of Bits
Audited
Cairo VM
Native Integration
04

Real-Time Data Pipelines

Custom-built data ingestion and transformation pipelines that process high-frequency market data, API feeds, and IoT streams with sub-second update capabilities.

1000+ TPS
Processing Capacity
< 500ms
End-to-End Latency
06

Enterprise Security & Compliance

Multi-signature administration, SOC 2 Type II compliant infrastructure, and regular third-party audits. Designed for institutional DeFi and regulated financial applications.

SOC 2
Compliance
7/24
Security Monitoring
benefits
DELIVERABLES

Business Outcomes for Your StarkNet Project

Our Cairo-based verifiable data feed service provides the foundational infrastructure to build secure, scalable, and data-rich applications on StarkNet. Here’s what you can expect.

01

Production-Ready Data Feeds

Deploy high-frequency, low-latency price oracles and custom data feeds in under 2 weeks. We handle the full Cairo smart contract development, on-chain deployment, and initial testing.

< 2 weeks
Time to Production
100%
On-Chain Delivery
02

Provably Secure Architecture

Every feed is built with formal verification principles, using OpenZeppelin’s Cairo libraries and security patterns. Our contracts undergo internal and third-party audits before deployment.

100%
Audit-Ready Code
0
Critical Bugs Shipped
03

Sub-Second Data Finality

Leverage StarkNet’s L2 scaling for data updates with sub-second confirmation times. Eliminate the latency and cost barriers of mainnet oracles for real-time DeFi applications.

< 1 sec
Update Latency
~$0.01
Avg. Update Cost
04

Uninterrupted Uptime SLA

Guaranteed 99.9% service availability for data feed updates, backed by redundant infrastructure and 24/7 monitoring. We ensure your application’s core logic never stalls.

99.9%
Uptime SLA
24/7
Monitoring
05

Custom Aggregation Logic

Go beyond simple price feeds. We implement bespoke data aggregation, event triggering, and cross-chain verification logic in Cairo to meet your specific business rules.

Multi-Source
Data Aggregation
Custom
Business Logic
06

Reduced Total Cost of Ownership

Eliminate the overhead of building and maintaining proprietary oracle infrastructure. Our managed service converts capital expenditure into a predictable operational cost.

-70%
Dev Cost
Fixed Fee
Pricing Model
Why StarkNet's Cairo Verifiable Data Feeds Are a Paradigm Shift

Verifiable Feeds vs. Traditional Oracle Models

A technical comparison of oracle architectures, highlighting the fundamental advantages of verifiable computation on StarkNet for data integrity and cost efficiency.

Architectural FeatureTraditional Oracle (e.g., Chainlink)Cairo Verifiable Data Feed

Data Integrity Proof

On-Chain Verification Cost

High (Gas-intensive consensus)

Low (STARK proof verification)

Trust Assumption

Committee/Node Reputation

Cryptographic Validity

Data Freshness Latency

Minutes to Hours

Sub-minute (L2 block time)

Custom Aggregation Logic

Limited, off-chain

Fully programmable on-chain

Developer Control

Relies on external network

Full sovereignty over logic

Attack Surface

Sybil, Eclipse, Bribery

Mathematical soundness of STARKs

Typical Implementation Time

2-4 weeks (integration)

1-2 weeks (custom feed build)

Long-term TCO (3 years)

$50K+ in oracle fees

< $10K in proving + L1 settlement

how-we-deliver
TRANSPARENT & PREDICTABLE

Our Delivery Process: From Specification to Mainnet

A structured, milestone-driven approach that ensures your verifiable data feed is delivered on time, on budget, and with production-ready security.

01

1. Discovery & Specification

We collaborate with your team to define the exact data source, update frequency, and security requirements. We deliver a detailed technical specification document, including cost estimates and a clear project timeline.

1-2 days
Kickoff to Spec
100%
Requirements Locked
02

2. Architecture & Design

Our Cairo experts design the optimal feed architecture, selecting between on-chain aggregation, oracle networks, or a hybrid model. We provide a comprehensive system design document for your review.

3-5 days
Design Phase
Certik
Security Review
03

3. Cairo Development & Testing

We write, test, and optimize the Cairo smart contracts for your feed. This includes unit tests, integration tests, and a full security audit simulation to catch vulnerabilities before deployment.

2-3 weeks
Development
>95%
Test Coverage
04

4. Security Audit & Finalization

The code undergoes a formal audit by our internal security team and, if required, a third-party auditor. All findings are addressed, and final deployment scripts and monitoring dashboards are prepared.

1-2 weeks
Audit Cycle
0 Critical
Issues at Launch
05

5. Staging Deployment

We deploy the complete system to the StarkNet testnet (or a dedicated devnet). We conduct end-to-end validation, load testing, and a final review with your team before mainnet approval.

3-5 days
Testing Window
99.9%
Simulated Uptime
06

6. Mainnet Launch & Support

We execute the mainnet deployment, initialize the feed, and hand over operational control. We provide 30 days of post-launch monitoring and support, with optional ongoing maintenance plans available.

< 1 day
Go-Live Time
24/7
Launch Support
Cairo StarkNet Verifiable Data Feeds

Frequently Asked Questions

Get clear answers on our development process, security, and timelines for building custom, verifiable data feeds on StarkNet.

A standard feed with 3-5 data sources and on-chain verification takes 2-4 weeks from kickoff to mainnet deployment. Complex feeds with custom aggregation logic, multi-chain attestation, or novel proving schemes can extend to 6-8 weeks. We provide a detailed project plan with milestones after the initial technical scoping session.

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