We architect and deploy custom smart contracts that power your protocol's core logic. Our development process is built on security-first principles, utilizing OpenZeppelin libraries and comprehensive testing suites to mitigate risk before mainnet deployment.
Embedded Wallet API Development
Smart Contract Development
Secure, production-ready smart contracts built by Web3-native engineers.
- Token Systems: Custom
ERC-20,ERC-721, andERC-1155implementations with tailored minting, vesting, and governance logic. - DeFi Primitives: Automated Market Makers (AMMs), lending pools, staking mechanisms, and yield optimizers.
- Enterprise Logic: Multi-signature wallets, access control systems, and upgradeable proxy patterns for future-proofing.
We deliver audit-ready code in 2-4 weeks, significantly reducing your time-to-market and technical debt.
Our engineers specialize in Solidity for EVM chains (Ethereum, Polygon, Arbitrum) and Rust for Solana, ensuring your contracts are optimized for performance and gas efficiency on your target network.
Core Capabilities of Our Embedded Wallet API
A modular, secure, and scalable API suite designed to integrate self-custody into your application in weeks, not months. We handle the complexity so you can focus on your core product.
Non-Custodial Key Management
Secure, MPC-based key generation and storage with user-friendly recovery flows (social, hardware). Eliminates private key friction while maintaining full user sovereignty and compliance with security best practices.
Multi-Chain & Gas Abstraction
Seamless support for EVM, Solana, and other L2s. Built-in gas sponsorship and fee estimation removes Web3 complexity, enabling predictable user onboarding and transaction costs.
Compliance & Risk Engine
Configurable transaction policies, real-time risk scoring, and automated sanctions screening (OFAC). Enforce business logic and regulatory requirements at the wallet level.
High-Availability Infrastructure
Globally distributed nodes with automatic failover, load balancing, and 24/7 monitoring. Enterprise SLAs guarantee the uptime your application demands.
Custom Smart Contract Wallets
Deploy bespoke Account Abstraction (ERC-4337) smart accounts with batch transactions, session keys, and custom recovery logic. Tailor wallet behavior to your exact product needs.
Business Outcomes: Why Build a Custom Embedded Wallet API
A custom Embedded Wallet API is more than a technical feature; it's a strategic asset that directly impacts your core business metrics. Here’s what we deliver and why it matters for your growth.
Accelerated User Onboarding
We implement non-custodial, seedless wallet creation using MPC or Account Abstraction (ERC-4337), removing the friction of seed phrases and extensions. This reduces the sign-up-to-transaction time from minutes to under 10 seconds, directly increasing conversion rates.
Enhanced Security & Compliance
Our architecture isolates private keys using secure multi-party computation (MPC) and integrates enterprise-grade key management. Built-in transaction simulation and policy engines ensure compliance with internal rules and regulatory standards before signing.
Reduced Operational Overhead
We provide a fully managed API with 24/7 monitoring, automatic scaling, and multi-chain support (EVM, Solana, etc.). This eliminates the need for your team to build and maintain complex wallet infrastructure, freeing engineering resources for core product development.
Superior User Experience & Retention
Custom wallet flows allow for branded, intuitive interfaces, social logins, gas sponsorship, and batched transactions. A seamless, app-native experience increases session depth and user retention by removing Web3 complexity.
Monetization & Data Control
Own the wallet layer to capture transaction fee revenue, analyze on-chain user behavior, and build proprietary data models. A custom API enables direct integration with your loyalty programs, subscriptions, and in-app economies.
Future-Proof Flexibility
Avoid vendor lock-in and adapt quickly to market changes. Our modular architecture allows you to easily integrate new blockchains, deploy custom smart accounts, or add features like recurring payments and cross-chain swaps as your product evolves.
Custom API vs. Off-the-Shelf WaaS: A Technical Comparison
A detailed comparison of building a custom Embedded Wallet API with Chainscore versus using a generic off-the-shelf Wallet-as-a-Service provider. Evaluate key technical, operational, and business factors for your Web3 application.
| Key Factor | Generic WaaS Provider | Chainscore Custom API |
|---|---|---|
Time to Market | 1-2 weeks (integration) | 4-8 weeks (development) |
Architecture Control | Limited (their stack) | Full (your design, our build) |
Smart Contract Ownership | Their wallet (custodial) | Your wallet (non-custodial, audited) |
Custom Logic & Features | Pre-defined templates only | Fully bespoke (multi-sig, gasless, etc.) |
Data Privacy & Sovereignty | Shared infrastructure | Dedicated, isolated deployment |
Integration Complexity | Low (SDK) | Medium (API-first, your frontend) |
Ongoing Maintenance | Their responsibility | Optional 24/7 SLA with our team |
Total Cost of Ownership (Year 1) | $20K - $100K+ (scaling fees) | $50K - $150K (fixed project + optional SLA) |
Ideal For | MVPs, rapid prototyping | Scaling startups, regulated FinTech, branded experiences |
Our Development Process for Embedded Wallet APIs
A systematic, security-first approach to deliver production-ready embedded wallet infrastructure in weeks, not months.
Architecture & Design Review
We analyze your application's user flows, security requirements, and chain support to design a scalable, multi-chain wallet architecture. This includes key management strategy (MPC vs. smart accounts), fee abstraction, and compliance guardrails.
Secure Smart Account Deployment
Development and deployment of audited, gas-optimized smart contract accounts (ERC-4337) or MPC setups. We implement session keys, batched transactions, and social recovery modules tailored to your UX.
API & SDK Integration
We build and integrate a dedicated Node.js/Python API layer with comprehensive SDKs for your frontend. Features include non-custodial key generation, transaction sponsorship, and real-time balance/activity feeds.
Security Audits & Pen Testing
Rigorous internal review followed by optional third-party audits from firms like CertiK or Halborn. We conduct penetration testing on the entire stack—smart contracts, API endpoints, and key management services.
Staging Deployment & Testing
Full deployment to a staging environment on testnets (Sepolia, Amoy) with comprehensive E2E testing. We simulate high-load scenarios, test recovery flows, and validate all user journeys before mainnet.
Production Launch & Monitoring
Managed mainnet deployment with 24/7 monitoring, alerting, and analytics dashboards. We provide ongoing support for upgrades, new chain integrations, and performance optimization.
Technology & Protocol Foundation
Our Embedded Wallet API is engineered on a robust, battle-tested technology stack designed for security, scalability, and seamless integration. We handle the protocol complexity so you can focus on your product.
Multi-Chain Account Abstraction
Deploy ERC-4337 smart accounts with native support for Ethereum, Polygon, Arbitrum, and Base. We manage bundlers, paymasters, and gas sponsorship logic for a seamless user onboarding experience.
Secure Key Management
Leverage MPC (Multi-Party Computation) and TEE (Trusted Execution Environment) technology for non-custodial key generation and signing. Keys are never stored in a single location, eliminating single points of failure.
High-Performance Node Infrastructure
Access dedicated, load-balanced RPC endpoints with 99.9% uptime SLA. Our infrastructure includes real-time transaction indexing, mempool monitoring, and fallback providers to ensure reliability.
Compliance & Audit-Ready
Built with OpenZeppelin libraries and industry-standard security patterns. All core smart contracts undergo third-party audits, and we provide detailed audit trails for all wallet operations to simplify regulatory compliance.
Frequently Asked Questions on Embedded Wallet API Development
Get clear, specific answers to the most common questions CTOs and product leads ask when evaluating an embedded wallet API partner.
For a standard embedded wallet integration with core features (key management, transaction signing, balance queries), we deliver a production-ready API in 2-3 weeks. Complex deployments with multi-chain support, custom gas policies, or advanced recovery mechanisms typically take 4-6 weeks. Our agile sprints deliver working endpoints weekly.
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today.
Our experts will offer a free quote and a 30min call to discuss your project.