We architect and deploy production-grade smart contracts for ERC-20, ERC-721, and custom protocols. Our code is built on Solidity 0.8+ with OpenZeppelin standards and undergoes rigorous security audits before mainnet deployment.
LABS
Services
Zero-Knowledge Credit Oracle Development
We build custom oracles that fetch off-chain credit data and generate verifiable, privacy-preserving proofs of creditworthiness for on-chain use, without exposing sensitive user information.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, audited smart contracts built by experts to power your Web3 product.
- Faster Time-to-Market: Go from spec to testnet in 2-4 weeks.
- Reduced Risk: Multi-stage review process with formal verification for critical logic.
- Gas Optimization: Contracts are benchmarked and optimized for up to 40% lower transaction costs.
We don't just write code; we deliver the secure, auditable foundation your application needs to scale with confidence.
key-features-cards
BUILDING TRUSTLESS FINANCIAL PRIMITIVES
Core Technical Capabilities
Our ZK Credit Oracle development delivers production-ready infrastructure, combining cryptographic rigor with enterprise-grade reliability to power your on-chain lending, underwriting, and risk assessment protocols.
03
High-Performance Prover Infrastructure
Deploy scalable, low-latency proving services to generate ZK proofs for credit assessments in under 2 seconds. Our infrastructure is optimized for batch processing and parallel proving to handle high-throughput lending platforms.
- Cloud-agnostic deployment (AWS, GCP, Bare Metal).
- 99.9% uptime SLA for proving endpoints.
- Automatic scaling to handle traffic spikes during market volatility.
< 2 sec
Proof Generation
99.9%
Uptime SLA
06
Compliance & Audit Readiness
We ensure your ZK Credit Oracle meets regulatory requirements for financial data handling and auditability. Our development includes comprehensive documentation, proof verifiability trails, and compliance with emerging frameworks.
- Full attestation trails for data provenance.
- Ready for financial audits (internal & external).
- Documentation for regulators on privacy preservation.
Full Audit Trail
Verifiability
Regulatory Docs
Compliance
benefits
DELIVERABLES
Business Outcomes for Your Project
Our Zero-Knowledge Credit Oracle development delivers concrete, measurable results that accelerate your go-to-market strategy and build user trust.
01
Regulatory-Compliant On-Chain Scoring
Deploy a privacy-first credit assessment system that operates within global data protection frameworks like GDPR and CCPA, enabling compliant lending and identity verification.
0
Raw Data Exposed
100%
Regulatory Alignment
02
Faster, Lower-Cost Loan Origination
Reduce underwriting overhead by 70%+ with automated, verifiable credit checks. Enable instant loan approvals with sub-second proof verification, slashing operational costs.
< 1 sec
Proof Verification
70%+
Cost Reduction
03
Enhanced Capital Efficiency for Lenders
Unlock higher loan-to-value ratios and new risk models by providing cryptographically verified, real-time creditworthiness without exposing sensitive user data.
30%+
Capital Efficiency Gain
Real-Time
Risk Assessment
04
Seamless Integration & Developer Experience
Get a production-ready ZK oracle with comprehensive APIs, SDKs, and documentation. Integrate with your DeFi protocol or dApp in under 2 weeks.
< 2 weeks
Integration Time
99.9%
Uptime SLA
05
Audited Security & Protocol Resilience
Receive a system built with formal verification practices and audited by leading security firms. Ensure bulletproof logic and resistance to oracle manipulation attacks.
Zero
Critical Bugs Post-Audit
24/7
Monitoring & Support
06
Cross-Chain Interoperability
Deploy a credit oracle that works across EVM chains (Ethereum, Polygon, Arbitrum) and non-EVM ecosystems, future-proofing your application's reach.
5+
Supported Chains
Modular
Architecture
ZK Credit Oracle Solutions
Structured Development Packages
Compare our tiered development packages for building a secure, production-ready Zero-Knowledge Credit Oracle. Each tier includes core development with increasing levels of support, security, and customization.
| Feature / Deliverable | Starter | Professional | Enterprise |
|---|---|---|---|
ZK Circuit Development & Optimization | |||
Smart Contract Suite (Verifier, Manager) | |||
On-Chain & Off-Chain Data Connectors | Basic (2 sources) | Advanced (5+ sources) | Custom (Unlimited) |
Comprehensive Security Audit | 1 Round | 2 Rounds + Fix Review | 3 Rounds + Formal Verification |
Gas Optimization Report | |||
Mainnet Deployment & Configuration | |||
Post-Launch Monitoring Dashboard | 30 days | 90 days | 1 year |
Technical Support SLA | Email (5-day) | Priority (24h) | Dedicated Engineer (4h) |
Custom Feature Development | Up to 2 features | Full Customization | |
Estimated Timeline | 6-8 weeks | 8-12 weeks | 12+ weeks |
Starting Price | $75,000 | $150,000 | Custom Quote |
how-we-deliver
PROVEN METHODOLOGY
Our Development & Integration Process
A structured, security-first approach to building and deploying your Zero-Knowledge Credit Oracle, designed for rapid integration and enterprise-grade reliability.
01
Requirement Analysis & Architecture Design
We conduct a deep dive into your data sources, privacy requirements, and on-chain integration points. We deliver a detailed technical specification and system architecture diagram, ensuring the oracle aligns with your business logic and compliance needs.
1-2 weeks
Design Phase
100%
Specification Clarity
02
ZK Circuit Development & Optimization
Our cryptographers design and implement custom zk-SNARK/STARK circuits using Circom or Halo2. We focus on proof generation efficiency and gas cost optimization for the verification contract, directly impacting your operational costs.
Circom/Halo2
Circuit Framework
< 0.1 ETH
Target Verification Cost
03
Smart Contract & On-Chain Integration
We develop and audit the verifier smart contract (Solidity/Vyper) and the oracle management layer. We provide integration SDKs and documentation for seamless connection to your DeFi protocol or lending application.
OpenZeppelin
Security Standard
2-3 days
Integration Time
04
Security Audit & Formal Verification
Every component undergoes rigorous internal review followed by an audit from a leading third-party firm. We employ formal verification for critical circuit logic to mathematically guarantee correctness.
Third-Party
Audit Mandatory
Formal Methods
Circuit Assurance
05
Testnet Deployment & Staging
We deploy the full oracle stack on a designated testnet (e.g., Sepolia, Holesky) for end-to-end testing. We simulate real-world load and edge cases, providing a sandbox for your team to validate integration.
Full E2E
Test Coverage
Goerli/Sepolia
Test Environment
06
Mainnet Launch & Ongoing Support
We manage the production deployment and provide monitoring dashboards for proof generation health and data feed accuracy. Includes SLAs for uptime and proactive maintenance for protocol upgrades.
99.5%
Uptime SLA
24/7
Monitoring
security-compliance
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts.
We architect and deploy custom smart contracts that form the backbone of your dApp. Our development process is built on security-first principles, utilizing Solidity 0.8+, OpenZeppelin libraries, and comprehensive audit-ready code. Deliverables include full test coverage, deployment scripts, and technical documentation.
- 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/borrowing modules.
- Enterprise Logic: Multi-signature wallets, access control systems, and custom business logic for real-world asset tokenization.
We deliver battle-tested contracts that power live protocols, ensuring gas efficiency, upgradeability, and regulatory compliance where required. Our typical engagement delivers a production-ready MVP in 2-4 weeks.
Zero-Knowledge Credit Oracle
Frequently Asked Questions
Get clear answers on development timelines, costs, and technical specifics for your private credit scoring solution.
A standard deployment for a production-ready ZK Credit Oracle takes 6-10 weeks. This includes 2 weeks for requirements & design, 3-5 weeks for core development (circuit logic, on/off-chain components), 2 weeks for security audit and testing, and 1 week for deployment and integration support. Complex models or multi-chain deployments can extend this 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