We architect and deploy custom Solidity and Rust smart contracts that form the backbone of your dApp. Our process ensures security-first development, gas optimization, and comprehensive audit readiness from day one.
LABS
Services
EVM-Based Reputation Protocol Development
Design and deploy custom, upgradable reputation protocols on Ethereum and EVM chains. We focus on gas efficiency and composability for SocialFi and DeFi applications.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
- Custom Logic: Build DeFi primitives, NFT marketplaces, DAO governance, and bespoke tokenomics.
- Security Framework: Adherence to
OpenZeppelinstandards, formal verification, and pre-audit threat modeling. - Deployment & Management: Full lifecycle support from testnet to mainnet, including upgradeable proxy patterns and multi-sig setup.
Deliver a secure, auditable, and scalable smart contract foundation in as little as 2-4 weeks for an MVP.
key-features-cards
BUILDING TRUST ON-CHAIN
Core Protocol Capabilities We Deliver
We architect and deploy production-ready EVM reputation protocols with battle-tested security and measurable business impact. Each capability is designed to reduce your technical risk and accelerate your go-to-market.
01
Custom Reputation Logic & Scoring
Design and implement bespoke reputation algorithms (on-chain/off-chain hybrid) for your specific use case—DeFi creditworthiness, DAO governance, NFT provenance, or social graphs. We ensure your scoring model is Sybil-resistant, transparent, and gas-optimized.
ERC-20/721/1155
Native Token Support
OpenZeppelin
Security Base
02
On-Chain Data Attestation
Build verifiable, tamper-proof attestation systems for user actions, credentials, and KYC data. Our modular attestation contracts enable seamless integration with existing identity providers (e.g., Worldcoin, Gitcoin Passport) and custom oracles.
EIP-712
Signature Standard
< 100k gas
Avg. Attest Cost
03
Reputation Aggregation & Portability
Develop cross-protocol reputation aggregators that unify user scores from multiple sources (e.g., DeFi history, NFT holdings, social activity). We build with portability in mind, allowing users to leverage their reputation across your ecosystem.
Multi-Source
Data Integration
ERC-4804
Portability Focus
04
Incentive & Staking Mechanisms
Integrate sophisticated staking, slashing, and reward distribution systems to align user behavior with protocol health. Our designs prevent gaming and ensure long-term, sustainable reputation growth.
Time-locked
Vesting Options
Dynamic APR
Reward Models
05
Gas-Optimized Contract Architecture
Engineer your core reputation logic with gas efficiency as a first-class concern. We employ patterns like storage packing, batch operations, and upgradeable proxies (Transparent/UUPS) to minimize user costs and future upgrade overhead.
40-60%
Gas Reduction Target
Solidity 0.8.x
Code Standard
benefits
DELIVERABLES & IMPACT
Business Outcomes for Your Platform
Our EVM-based reputation protocol development delivers measurable improvements in user engagement, platform security, and operational efficiency. Here’s what you can expect.
01
Trustless On-Chain Reputation
Deploy a fully decentralized reputation system where user scores are immutable, portable, and verifiable on-chain. Eliminate single points of failure and build user trust without centralized intermediaries.
100%
On-Chain Verifiability
ERC-20/721
Compatible Standards
02
Reduced Sybil & Fraud Risk
Implement sophisticated algorithms to detect and mitigate fake accounts and manipulation. Our protocols use multi-factorial scoring and staking mechanisms to protect your platform's integrity.
< 0.1%
Sybil Attack Surface
Real-time
Threat Detection
03
Enhanced User Engagement & Retention
Leverage reputation-based rewards, governance rights, and access tiers to create powerful incentives. Drive meaningful participation and increase user lifetime value.
40%+
Higher Engagement
2-3x
Longer Retention
04
Seamless Cross-Platform Integration
Integrate our modular reputation protocol into your existing dApp or marketplace in weeks, not months. Our SDKs and APIs are built for Ethereum, Polygon, Arbitrum, and other major EVM chains.
< 4 weeks
Integration Time
Multi-Chain
Deployment Ready
05
Audited & Secure Smart Contracts
Receive production-ready smart contracts audited by leading security firms. We follow OpenZeppelin standards and implement comprehensive testing to ensure your protocol's security from day one.
100%
Test Coverage
CertiK
Audit Partners
06
Actionable Reputation Analytics
Gain deep insights into user behavior and platform health with our integrated dashboard. Track reputation distribution, score velocity, and governance participation to inform product decisions.
Real-time
Data Feeds
Custom Metrics
Dashboard
Structured Roadmap to Production
Phased Development & Deliverables
A transparent, milestone-driven approach to delivering your custom EVM-based reputation protocol, from initial design to full-scale deployment and ongoing support.
| Phase & Deliverables | Foundation (4-6 Weeks) | Integration (3-4 Weeks) | Scale & Support (Ongoing) |
|---|---|---|---|
Core Protocol Smart Contracts | |||
On-Chain Audit Report (2 Rounds) | |||
Custom Reputation Logic & Scoring | Basic Model | Advanced Multi-Factor | Fully Custom |
Integration SDK & API | Read-Only API | Full Read/Write SDK | White-Label Widgets |
Deployment to Mainnet | |||
Gas Optimization & Cost Analysis | Testnet Only | Mainnet Deployment | Continuous Monitoring |
Technical Documentation | Developer Guide | Integration Guide | Full API Specs & Tutorials |
Post-Launch Support & SLA | 30 Days | 6 Months | 12+ Months Custom SLA |
Typical Investment | $25K - $50K | $40K - $80K | Custom Quote |
how-we-deliver
TRANSPARENT & METHODICAL
Our Development Process
A structured, four-phase approach to deliver a secure, scalable, and production-ready EVM reputation protocol. We focus on clear milestones, continuous validation, and your business objectives.
01
Discovery & Architecture Design
We start by analyzing your use case and tokenomics to design a modular protocol architecture. This phase defines the core reputation logic, data structures, and integration points for your ecosystem.
1-2 weeks
Initial Design Sprint
3+
Architecture Options
02
Smart Contract Development
Our engineers build your core reputation contracts in Solidity 0.8+ using OpenZeppelin libraries. We implement gas-efficient scoring algorithms, permissioned update mechanisms, and on-chain verification logic.
OpenZeppelin
Security Foundation
Gas Reports
Optimization Included
03
Security Audit & Testing
Every line of code undergoes rigorous unit, integration, and scenario testing. We conduct internal audits and facilitate third-party reviews with firms like CertiK or Quantstamp before mainnet deployment.
100%
Test Coverage
External Audit
Facilitated
04
Deployment & Integration Support
We manage the secure deployment to your chosen EVM network (Ethereum, Polygon, Arbitrum, etc.) and provide SDKs, documentation, and technical support for seamless integration into your dApp or platform.
Multi-chain
Deployment Ready
Developer SDK
Included
EVM-Based Reputation Protocol
Build vs. Buy vs. Generic Framework
A clear comparison of development paths for integrating on-chain reputation, highlighting the trade-offs between custom engineering, pre-built solutions, and our tailored development service.
| Key Factor | Build In-House | Generic Framework | Chainscore Development |
|---|---|---|---|
Time to Production | 6-12 months | 2-4 months | 4-8 weeks |
Initial Development Cost | $200K - $500K+ | $50K - $100K | $75K - $200K |
Security & Audit Burden | High (Your Responsibility) | Medium (Limited Audits) | Low (Pre-Audited Core + Custom Audit) |
Custom Logic & Integration | Fully Customizable | Limited by Framework | Tailored to Your Use Case |
Protocol Expertise Required | Senior Solidity Team (3-5) | Mid-Level Team (1-2) | Our Team (Included) |
Ongoing Maintenance & Upgrades | Your Team's Ongoing Cost | Community-Dependent | Optional SLA from $15K/year |
Multi-Chain Deployment | Complex & Costly | Often Single-Chain | Standard (Ethereum, Polygon, Arbitrum, Base) |
Time to First Integration (API/SDK) | Months of Development | Weeks | Days (Pre-built SDK Provided) |
Total Cost of Ownership (Year 1) | $300K - $600K+ | $80K - $150K | $90K - $220K |
EVM Reputation Protocol Development
Frequently Asked Questions
Get clear answers on timelines, costs, and technical details for building your on-chain reputation system.
A core reputation protocol MVP with essential features like score calculation, attestation, and querying typically takes 4-6 weeks from kickoff to testnet deployment. Complex integrations with existing DeFi dApps or custom Sybil resistance mechanisms can extend this to 8-12 weeks. We use agile sprints with weekly demos to ensure consistent progress.
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