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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

Interoperable Profile System Development

We design and build portable, multi-chain social identity standards and the infrastructure for apps to resolve and display them, enabling seamless user profiles across Web3.
Chainscore © 2026
overview
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built for scale and compliance.

We architect and deploy custom smart contracts that power your core business logic, from token economies to complex DeFi protocols. Our code is built on Solidity 0.8+ with OpenZeppelin standards and undergoes rigorous security audits.

Deliver a secure, gas-optimized MVP in as little as 2-4 weeks.

  • Token Systems: ERC-20, ERC-721, ERC-1155 with custom minting, vesting, and staking logic.
  • DeFi & DAOs: Automated market makers (AMMs), liquidity pools, governance modules, and treasury management.
  • Enterprise Logic: Custom business rules, multi-signature controls, and compliance-ready features like allowlists.
  • Full Lifecycle: Development, testing (Hardhat/Foundry), auditing, and mainnet deployment with 99.9% uptime monitoring.
key-features-cards
END-TO-END ARCHITECTURE

Core Components We Deliver

We build and integrate the complete technical stack for a portable, secure, and user-owned identity layer, accelerating your time-to-market.

01

Cross-Chain Identity Registry

Deploy a canonical, non-upgradable registry smart contract that serves as the single source of truth for user profiles, with mappings to addresses across Ethereum, Polygon, and other EVM chains.

EVM+
Chain Support
Immutable
Core Logic
02

Decentralized Profile Resolver

A lightweight, gas-optimized resolver contract that fetches and aggregates profile data (ENS, Lens, Farcaster) on-chain, enabling seamless interoperability without vendor lock-in.

< 100k gas
Query Cost
Modular
Design
03

Secure Attestation Framework

Implement an EAS-compatible system for issuing and verifying on-chain credentials (KYC, reputation, achievements) with customizable schemas and revocation controls.

EAS-Compatible
Standard
ZK-Optional
Privacy
04

Unified SDK & API Gateway

A developer-friendly TypeScript SDK and managed API layer for easy integration, handling chain abstraction, caching, and real-time profile state synchronization.

TypeScript
SDK
GraphQL/REST
APIs
05

Gas-Optimized Transaction Relayer

A meta-transaction infrastructure enabling gasless profile updates and social interactions for users, with sponsored gas policies and batched operations to reduce costs.

Gasless UX
User Experience
Batched TX
Cost Saving
06

Comprehensive Security Suite

End-to-end security including smart contract audits (submitted to Code4rena), monitoring for Sybil resistance, and rate-limiting to protect against spam and abuse.

Audited
Contracts
24/7
Monitoring
benefits
BUSINESS IMPACT

Why a Portable Profile System Drives Growth

An interoperable identity layer isn't just a technical feature—it's a strategic growth engine. Here's how our development service delivers measurable business outcomes.

01

Accelerate User Onboarding

Reduce sign-up friction by 70%+ with portable credentials. Users bring their verified identity and reputation from other platforms, eliminating redundant KYC and trust-building steps.

70%+
Faster Onboarding
2-4 Weeks
Integration Time
02

Unlock Cross-Protocol Liquidity

Enable seamless user movement between DeFi, gaming, and social apps. A unified profile allows for shared reputation scores and collateralized identities, increasing capital efficiency across your ecosystem.

40%+
Higher User LTV
ERC-6551 / SBTs
Core Standards
03

Enhance Security & Compliance

Build with verifiable credentials and zero-knowledge proofs. Our systems are designed for privacy-by-default, reducing regulatory risk and protecting user data while enabling compliant on-chain interactions.

SOC 2 Type II
Compliance Ready
ZK-Proofs
Privacy Tech
04

Future-Proof Your Product Stack

Avoid vendor lock-in with standards-based development (ERC-725, ERC-6551). Our portable profile architecture ensures compatibility with emerging protocols and simplifies integration with new partners.

100%
Protocol Agnostic
< 1 Week
New Chain Support
Choose the right plan for your interoperable profile system

Structured Development Paths

Compare our tiered service packages designed to match your project's scale, security needs, and go-to-market timeline.

Core DeliverablesRapid LaunchScalable BuildEnterprise Platform

Custom Profile Schema Design

Cross-Chain Smart Contracts (ERC-6551/7252)

Single Chain

Up to 3 Chains

Unlimited Chains

On-Chain/Off-Chain Data Orchestration

Basic Indexer

Advanced Indexer + API

Custom Data Pipeline

Security Audit & Penetration Testing

Automated Scan

Manual Review + Report

Comprehensive Audit + Bug Bounty Setup

Integration Support (Wallets, Marketplaces, dApps)

Documentation

2 Integrations

Unlimited Consultations

Deployment & DevOps

Testnet Only

Mainnet Deployment

Multi-Chain Deployment with CI/CD

Monitoring & Alerting

Basic Dashboard

7-Day SLA, 12h Response

24/7 Monitoring, 1h SLA

Ongoing Maintenance & Upgrades

Ad-hoc

Quarterly Updates

Dedicated Engineer

Typical Timeline

4-6 Weeks

8-12 Weeks

Custom (12+ Weeks)

Starting Investment

$25K

$75K

Contact for Quote

how-we-deliver
PROVEN METHODOLOGY

Our Development & Integration Process

A structured, security-first approach to building and integrating your interoperable profile system, designed for rapid deployment and seamless scalability.

01

Architecture & Protocol Design

We design the foundational architecture, selecting and customizing the optimal interoperability protocol (e.g., LayerZero, Axelar, Wormhole) and token standards (ERC-6551, ERC-725) for your specific use case.

2-3 weeks
Design Phase
3+ protocols
Evaluated
02

Smart Contract Development

Development of secure, gas-optimized smart contracts for profile logic, account abstraction, and cross-chain messaging. Built with Solidity 0.8+ and OpenZeppelin libraries.

100%
Test Coverage
OpenZeppelin
Security Standard
03

Security Audit & Verification

Rigorous internal and third-party smart contract auditing. We facilitate audits with leading firms like CertiK or Quantstamp to ensure enterprise-grade security before mainnet deployment.

Critical
Zero Issues
2+ Audits
Per Contract
04

Frontend & SDK Integration

Development of user-facing applications and developer SDKs (React/TypeScript) for seamless profile management, wallet connection, and cross-chain interactions.

< 1 week
Integration Time
Full Docs
Included
05

Testnet Deployment & Staging

Comprehensive deployment on testnets (Sepolia, Mumbai, etc.) with simulated cross-chain transactions. We conduct load testing and user acceptance testing (UAT) in a staging environment.

99.9%
Reliability
Multi-chain
Testing
06

Mainnet Launch & Monitoring

Managed mainnet deployment across your target chains (Ethereum, Polygon, Arbitrum). We provide 24/7 monitoring, alerting, and performance dashboards post-launch.

24/7
Monitoring
4 hrs
Avg. Launch Time
security-approach
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built for scale and compliance.

We architect and deploy custom smart contracts on EVM and Solana that power your core business logic. Our focus is on security-first development, leveraging audited patterns from OpenZeppelin and rigorous internal testing to mitigate risks before deployment.

  • Token Systems: ERC-20, ERC-721, ERC-1155, and SPL tokens with custom minting, vesting, and governance logic.
  • DeFi Protocols: Automated Market Makers (AMMs), lending/borrowing pools, staking mechanisms, and yield optimizers.
  • Enterprise Logic: Multi-signature wallets, asset tokenization platforms, and compliant KYC/AML integration modules.
  • Full Audit Trail: Every contract includes comprehensive documentation, NatSpec comments, and is prepared for third-party audit.

We deliver battle-tested code that reduces time-to-market by weeks and provides a foundation you can trust for millions in TVL.

Interoperable Profile Systems

Frequently Asked Questions

Common questions from CTOs and product leads about building and deploying cross-chain identity solutions.

A production-ready MVP with core features (profile creation, attestations, multi-chain resolution) typically deploys in 3-5 weeks. Complex systems with custom governance, advanced privacy, or integration with 5+ chains can take 6-10 weeks. Our agile sprints deliver working code every 2 weeks.

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