Secure, production-ready smart contracts built by Web3 experts to power your protocol.
We architect and deploy custom smart contracts on EVM and Solana that form the secure, auditable backbone of your application. Our development process is built for zero vulnerabilities and gas optimization from day one.
We deliver battle-tested code that passes rigorous security audits, ensuring your core logic is immutable and reliable.
ERC-20/721/1155 tokens to complex DeFi primitives, DAO governance, and cross-chain bridges.OpenZeppelin standards, formal verification, and pre-audit reviews.Our multi-asset portfolio engine is built on battle-tested infrastructure, delivering institutional-grade performance and security for your DeFi product.
Aggregate token balances, NFT holdings, and DeFi positions across Ethereum, Solana, and 15+ EVM chains in a single API call. Eliminates the need for multiple RPC providers.
Dynamic pricing for 10,000+ assets using decentralized oracles (Chainlink, Pyth) and DEX liquidity pools. Calculates real-time USD and native token valuations.
All portfolio logic is implemented in audited smart contracts using OpenZeppelin libraries. Includes automated vulnerability scanning and formal verification patterns.
Proprietary Merkle tree and state compression techniques reduce on-chain storage costs by up to 70% compared to standard mapping structures.
Pre-built adapters for leading DeFi protocols (Uniswap V3, Aave, Lido) and custodians (Fireblocks, Copper). Enables rapid feature expansion.
REST and GraphQL endpoints with rate limiting, authentication (JWT/OAuth), and webhooks for portfolio change events. Built for high-volume applications.
Our Multi-Asset Portfolio Card Support delivers tangible infrastructure and strategic advantages, enabling you to launch faster, scale securely, and capture new revenue streams.
Deploy a fully functional, branded multi-asset card program in under 3 weeks. We handle the complex backend integration with custodians, payment rails, and blockchain networks, so your team can focus on user acquisition.
Built on SOC 2 Type II compliant infrastructure with MPC-based key management. Our smart contracts are audited by leading firms, and we provide KYC/AML orchestration to meet global regulatory standards.
Enable users to spend from a unified portfolio holding ETH, USDC, SOL, and other major assets across Ethereum, Solana, and Polygon. We manage the cross-chain settlement and liquidity routing behind the scenes.
Eliminate the cost and complexity of building in-house card issuance, transaction monitoring, and reconciliation systems. Our managed service includes 24/7 monitoring, fraud detection, and automated reporting.
Turn crypto holdings into spendable capital, increasing platform utility and stickiness. Real-time balance updates and transaction notifications keep users engaged directly within your app.
Capture interchange fees, generate yield on idle card balances, and create premium subscription tiers for card features. We provide the analytics dashboard to track revenue performance.
A phased approach to integrating multi-asset portfolio card support, from core functionality to a fully managed, enterprise-grade solution.
| Feature / Support | Starter (Self-Service) | Professional (Managed) | Enterprise (White-Glove) |
|---|---|---|---|
Core Multi-Asset Smart Contracts | |||
On-Chain Portfolio Aggregation Logic | |||
Gas-Optimized Batch Settlement | |||
Deployment & Configuration Support | Documentation Only | Hands-on Setup | Full Deployment Management |
Smart Contract Security Audit | Basic Review | Full Audit Report | Full Audit + Formal Verification |
Integration Support (Wallet/UI SDKs) | Community | Priority Slack | Dedicated Engineer |
Real-Time Balance & Price Oracles | Basic (1hr delay) | Advanced (<5 min) | Custom & High-Frequency |
Incident Response Time SLA | 24 Business Hours | 4 Hours, 24/7 | |
Ongoing Protocol Updates & Maintenance | Manual | Semi-Automated | Fully Managed |
Estimated Implementation Timeline | 8-12 Weeks | 4-6 Weeks | 2-4 Weeks |
Typical Engagement | $15K - $30K | $50K - $100K | Custom Quote |
End-to-end infrastructure engineering for high-performance, secure Web3 applications.
We architect and deploy the foundational systems your dApp needs to scale. From custom RPC nodes with 99.9% uptime SLAs to secure smart contract wallets and real-time indexers, we build the reliable backbone that powers your user experience.
Focus on your product's logic. We handle the complex, non-differentiating infrastructure so you can launch faster and scale confidently.
EVM chains (Ethereum, Polygon, Arbitrum) and Solana. Includes monitoring, failover, and performance optimization.The Graph) and indexers for on-chain data. Deliver real-time analytics and seamless querying.ERC-4337 account abstraction solutions and MPC custody systems to simplify onboarding and enhance security.Terraform, Kubernetes) for consistent, auditable environments.Our multi-asset portfolio support is engineered on a robust, battle-tested foundation. We provide the secure, high-performance infrastructure your financial product needs to handle real-world volume and complexity.
Deploy your portfolio logic across Ethereum, Polygon, Arbitrum, and Base with a unified, gas-optimized codebase. We ensure consistent behavior and asset interoperability, reducing integration time by 70%.
Every contract undergoes rigorous testing and formal verification. Our development follows OpenZeppelin standards and is reviewed by leading security firms, providing the audit trail required by institutional partners.
Real-time portfolio valuation powered by custom subgraphs and decentralized oracle networks (Chainlink, Pyth). Achieve sub-second price updates and reliable off-chain data feeds for accurate NAV calculations.
Leverage customized ERC-20, ERC-4626 (Vaults), and ERC-1155 (Multi-Token) implementations with built-in compliance hooks for transfer restrictions, allowing seamless integration with regulated custodians and exchanges.
Get clear answers on our development process, security, and support for your multi-asset card solution.
From initial specification to mainnet deployment, a standard multi-asset portfolio card solution with core features (custody, on/off-ramps, portfolio dashboard) typically takes 8-12 weeks. This includes 2 weeks for architecture design, 4-6 weeks for core development and smart contract audits, and 2-4 weeks for integration testing and deployment. We provide a detailed project plan with milestones during the discovery phase.
Our experts will offer a free quote and a 30min call to discuss your project.