We architect and deploy custom smart contracts that form the backbone of your Web3 application. Our development process is built on security-first principles, utilizing battle-tested libraries like OpenZeppelin and rigorous internal audits before deployment.
LABS
Services
Compliant IoT Payment System Audit
Specialized security and regulatory compliance audits for blockchain-based IoT payment and device monetization systems. We identify vulnerabilities and ensure adherence to financial and data privacy laws before launch.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Token Standards:
ERC-20,ERC-721,ERC-1155, and custom implementations. - Protocol Logic: Automated market makers (AMMs), staking pools, vesting schedules, and governance modules.
- Security Posture: Formal verification, gas optimization, and comprehensive unit/integration testing.
Deliver a fully audited, production-ready contract suite in 2-4 weeks, from initial spec to mainnet deployment.
key-features-cards
PROVEN FRAMEWORK
Our Audit Methodology: Depth Meets Regulatory Insight
Our dual-focus methodology combines deep technical security with proactive compliance, ensuring your IoT payment system is both resilient and regulator-ready from day one.
01
Comprehensive Code Review
In-depth static and dynamic analysis of smart contracts and off-chain logic. We identify vulnerabilities like reentrancy, oracle manipulation, and logic flaws specific to IoT payment flows.
100%
Code Coverage
OWASP Top 10
Vulnerability Check
02
Regulatory Compliance Mapping
We map your system's data flows and transaction logic against key frameworks like PSD2, GDPR, and FATF Travel Rule requirements, identifying gaps before deployment.
10+
Frameworks Covered
Gap Analysis
Deliverable
03
Hardware-Software Integration Test
Specialized testing for the unique attack vectors at the IoT device-blockchain interface, including secure element communication, key management, and firmware integrity.
End-to-End
Integration Scope
MITRE ATT&CK
Threat Model
04
Formal Verification & Economic Security
Mathematical proof of critical contract properties and stress-testing of tokenomics under edge cases to prevent exploits and ensure system stability.
Formal Methods
Technique
Economic Attacks
Simulated
05
Automated Monitoring Baseline
We deliver a custom set of Slither/Solhint rules and monitoring alerts for your codebase, enabling continuous security validation throughout development.
CI/CD Integrated
Automation
Custom Rules
Provided
06
Actionable Remediation Report
Receive a prioritized, developer-friendly report with clear severity ratings, proof-of-concept exploits for critical issues, and step-by-step remediation guidance.
< 72h
Critical Issue TAT
Remediation Support
Included
benefits
DELIVERABLES & GUARANTEES
Business Outcomes: Secure Monetization & Market Trust
Our audit delivers more than a report. We provide the technical foundation for secure revenue streams and the market credibility required for enterprise adoption.
01
Certified Security Posture
Receive a formal attestation report detailing compliance with ISO 27001 security controls and OWASP IoT Top 10, enabling you to confidently present your security posture to enterprise clients and partners.
ISO 27001
Framework
OWASP IoT
Standards
02
Zero Critical Vulnerabilities
Guaranteed remediation of all critical and high-severity findings in the payment and device authentication logic before launch, eliminating the risk of catastrophic financial loss or data breach.
100%
Critical Fixes
SLA-Backed
Remediation
03
Regulatory Readiness
Detailed gap analysis against key financial regulations (PSD2, e-money directives) and data privacy laws (GDPR, CCPA), providing a clear roadmap for compliance and reducing legal exposure.
PSD2/GDPR
Coverage
Gap Analysis
Deliverable
04
Faster Enterprise Integration
Our audit report serves as a trust credential, accelerating security reviews and technical due diligence with payment processors, financial institutions, and large-scale OEMs.
70% Faster
Onboarding
Vendor Pre-Qual
Outcome
05
Provable Transaction Integrity
Verification of end-to-end cryptographic proofs for microtransactions, ensuring non-repudiation, audit trails, and tamper-evident logs for every payment event.
End-to-End
Audit Trail
Cryptographic Proof
Guarantee
06
Insurance & Liability Reduction
A comprehensive audit from a recognized firm can lower cyber insurance premiums and provide documented evidence of due diligence, mitigating liability in the event of an incident.
Risk Mitigation
Primary Goal
Documented Diligence
Deliverable
Transparent Pricing & Service Tiers
Comprehensive Audit Scope & Deliverables
Choose the audit package that matches your project's compliance requirements and risk profile. All tiers include a detailed security report and remediation guidance.
| Audit Component | Starter | Professional | Enterprise |
|---|---|---|---|
Smart Contract Security Audit | |||
IoT Device Firmware Review | |||
Payment Flow & Compliance Analysis | |||
Gas Optimization Report | |||
Formal Verification (Key Functions) | |||
Post-Audit Deployment Support | |||
Priority Response Time | 72h | 24h | 4h |
Ongoing Monitoring & Alerts (1 Month) | |||
Final Deliverable | PDF Report | Report + Call | Report + Call + Monitoring |
Estimated Timeline | 7-10 days | 10-14 days | 14-21 days |
Starting Price | $8,000 | $25,000 | Custom Quote |
process-walkthrough
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
We architect and deploy custom smart contracts on EVM-compatible chains (Ethereum, Polygon, Arbitrum) and Solana. Our development process is built for security and speed, delivering a minimum viable product (MVP) in 2-4 weeks.
- Security-First Approach: Code is developed using
OpenZeppelinstandards and undergoes rigorous internal audits before deployment. - Full-Stack Integration: We build the contracts and the supporting infrastructure—
The Graphsubgraphs,Hardhat/Foundrytesting suites, and deployment pipelines. - Gas Optimization: Every line is written for efficiency, reducing user transaction costs by 15-40% on average.
We don't just write code; we deliver a secure, auditable, and maintainable foundation for your Web3 product.
Our team handles the entire lifecycle: from initial design and Solidity/Rust development to deployment, verification on Etherscan/Solscan, and post-launch monitoring. We ensure your contracts are upgradeable, composable, and ready for mainnet.
Expert Insights
Frequently Asked Questions on Compliant IoT Payment Audits
Get clear, technical answers to common questions about our security-first audit process for IoT payment systems and embedded finance protocols.
We employ a four-phase, hybrid audit methodology tailored for IoT's unique attack surface: 1) Architecture Review of the hardware-software interface and off-chain data oracles. 2) Smart Contract Audit using static analysis (Slither), manual review, and fuzzing for on-chain payment logic. 3) Integration Security Assessment testing the communication layer (APIs, MQTT, WebSockets) between devices and the blockchain. 4) Compliance Mapping to ensure the system design adheres to relevant financial regulations (PSD2, e-money directives). This process has secured over $500M+ in transactional value across 30+ IoT finance projects.
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