We architect, develop, and deploy custom smart contracts that are secure by design. Our team of certified auditors writes in Solidity 0.8+ and Rust, leveraging battle-tested libraries like OpenZeppelin to eliminate common vulnerabilities. Deliverables include comprehensive test suites and deployment scripts for mainnet launch.
LABS
Services
Institutional-Grade Multi-Chain Wallet APIs
We develop secure, compliant APIs for FinTechs and institutions to programmatically manage digital assets across multiple blockchains, featuring multi-sig, policy engines, and regulatory reporting hooks.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by certified auditors for your Web3 product.
- Security-First Development: Every contract undergoes formal verification and internal review before audit.
- Gas Optimization: We achieve up to 40% lower transaction costs through efficient code patterns.
- Full Audit Support: We prepare clean, documented code for third-party auditors, streamlining the review process.
- Post-Deployment Monitoring: We provide tools for real-time event tracking and upgrade management.
From initial concept to mainnet deployment, we ensure your contract logic is flawless, secure, and cost-effective for users.
key-features-cards
ENTERPRISE-GRADE FOUNDATION
Core Capabilities for Secure Programmatic Operations
Our wallet infrastructure is engineered for institutional reliability, providing the security, performance, and control required for high-value, automated financial operations.
01
Multi-Chain Transaction Orchestration
Programmatically construct, simulate, and broadcast transactions across 20+ EVM and non-EVM chains from a single API. Supports complex multi-step operations like cross-chain swaps and batch settlements.
20+
Supported Chains
< 2 sec
Simulation Latency
02
Institutional Key Management
Deploy MPC-TSS (Multi-Party Computation - Threshold Signature Scheme) or hardware-backed custody solutions. Eliminate single points of failure with distributed key sharding and policy-based approval workflows.
SOC 2 Type II
Compliance
0
Private Key Exposure
04
Deterministic Webhook & Event System
Get guaranteed, in-order delivery of on-chain events (transactions, token transfers, contract logs) and wallet state changes. Built-in retry logic and dead-letter queues ensure no event is missed.
99.99%
Delivery SLA
< 1 sec
Event Latency
05
Granular Role-Based Access Control (RBAC)
Define precise permissions for teams and services—from read-only balance checks to specific spend limits per chain. Audit trails log all API calls and signing attempts for compliance.
Unlimited
Custom Roles
Immutable
Audit Logs
06
High-Availability Infrastructure
Globally distributed nodes with automatic failover, load balancing, and 24/7 monitoring. Dedicated infrastructure options with isolated tenancy and custom RPC endpoints available.
99.95%
Uptime SLA
< 50ms
P95 API Latency
benefits
ENTERPRISE-READY INFRASTRUCTURE
Business Outcomes: From Technical Features to Institutional Advantage
Our multi-chain wallet APIs deliver more than raw functionality. They translate into measurable business results, operational resilience, and a competitive edge for your institution.
01
Accelerated Time-to-Market
Deploy secure, multi-chain wallet integrations in weeks, not months. Our battle-tested APIs and dedicated technical support eliminate the need for in-house R&D on cross-chain key management and transaction orchestration.
< 4 weeks
Average Deployment
100+
Pre-built Integrations
02
Institutional-Grade Security & Compliance
Built with enterprise security-first principles. Features include MPC-based key management, SOC 2 Type II compliance, and granular role-based access controls (RBAC) to meet stringent financial regulatory requirements.
SOC 2 Type II
Certification
0
Security Breaches
03
Operational Cost Reduction
Consolidate infrastructure and reduce engineering overhead. A single API suite replaces the need to manage separate wallet solutions, node infrastructure, and security tooling across multiple blockchains.
60%
Lower TCO
24/7
Managed Infrastructure
04
Unified Multi-Chain Liquidity Access
Enable seamless interaction with DeFi, NFTs, and tokens across 30+ EVM and non-EVM chains from a single integration. Remove fragmentation and provide users with a cohesive cross-chain experience.
30+
Supported Chains
< 1 sec
Balance Sync
05
Enterprise Reliability & Scalability
Guaranteed performance under load with redundant, geo-distributed infrastructure. Designed to handle high-volume transaction flows with predictable latency, backed by strict SLAs.
99.99%
Uptime SLA
< 100ms
P95 API Latency
06
Future-Proof Architecture
Automatically integrate new chains and protocols without code changes. Our abstraction layer ensures your product remains agile, adapting to market shifts and emerging blockchain standards effortlessly.
Auto-Updated
Protocol Support
Zero-Downtime
Upgrades
Quantifying the Trade-offs for Your Engineering Team
Build vs. Buy: The Institutional Wallet API Decision Matrix
A data-driven comparison of the total cost, risk, and time investment required to build a secure, multi-chain wallet infrastructure in-house versus using Chainscore's managed API service.
| Key Factor | Build In-House | Buy with Chainscore |
|---|---|---|
Time to Production Launch | 6-12 months | 4-8 weeks |
Initial Development Cost | $250K - $600K+ | $0 (API Subscription) |
Annual Maintenance & DevOps | $120K - $300K | Included |
Security Audit & Pen-Testing | $50K - $100K (one-time) | Included & Continuous |
Multi-Chain Support (EVM & Non-EVM) | Per-chain integration effort | Unified API for 20+ chains |
MPC/TSS Key Management | High complexity, custom implementation | Pre-built, SOC 2 Type II compliant |
Transaction Success Rate SLA | Your team's responsibility | 99.9% Guaranteed |
Compliance & Regulatory Features (Travel Rule, Screening) | Custom build, high legal overhead | Pre-integrated with leading providers |
Team Composition Required | 5-7 Senior Blockchain Devs + DevOps | Your existing backend team |
Total 3-Year Cost of Ownership | $700K - $1.5M+ | Predictable subscription model |
how-we-deliver
PREDICTABLE, TRANSPARENT, AND SECURE
Our Delivery Process: From Specification to Production
We deliver institutional-grade wallet infrastructure through a structured, milestone-driven process. This ensures predictable timelines, transparent communication, and enterprise-level security at every phase.
01
1. Discovery & Architecture
We conduct a technical deep-dive to define your exact multi-chain requirements, target networks, and compliance needs. Deliverables include a detailed technical specification and a high-level system architecture diagram.
2-3 days
Workshop
Detailed Spec
Deliverable
02
2. Secure Development & Integration
Our team builds and integrates the wallet API layer using battle-tested libraries and security-first patterns. We implement multi-signature schemes, key management, and transaction simulation for your specified blockchains (EVM, Solana, etc.).
SOC 2 Type II
Compliance
OpenZeppelin
Standards
03
3. Rigorous Testing & Auditing
Every component undergoes unit, integration, and penetration testing. We conduct internal security reviews and can facilitate third-party audits with firms like Trail of Bits or Quantstamp before deployment.
100%
Code Coverage
Security Review
Phase
04
4. Staging & Client Validation
We deploy the complete solution to a dedicated staging environment. Your team performs UAT, stress tests transaction flows, and validates all wallet operations (signing, broadcasting, querying) against real testnets.
Dedicated Env
Staging
Full UAT
Client Sign-off
05
5. Production Deployment & Monitoring
We manage the orchestrated rollout to your production infrastructure. Includes 24/7 monitoring, alerting on anomalous activity, and detailed logging for all API calls and on-chain transactions.
99.9%
Uptime SLA
< 1 min
Alert Response
06
6. Ongoing Support & Evolution
Receive prioritized technical support, regular security updates, and proactive upgrades for new blockchain integrations, protocol changes, and feature requests. We act as an extension of your engineering team.
24/7
Support
SLA-Backed
Maintenance
security-compliance
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built by Web3 experts for your protocol or application.
We architect and deploy custom smart contracts that form the secure, auditable backbone of your Web3 product. Our development process is built on Solidity 0.8+ with OpenZeppelin standards, ensuring gas efficiency and security from day one.
- Token Systems:
ERC-20,ERC-721,ERC-1155with custom minting, vesting, and governance logic. - DeFi Primitives: Automated Market Makers (AMMs), staking pools, yield aggregators, and lending protocols.
- Enterprise Logic: Multi-signature wallets, access control, upgradeable proxy patterns, and cross-chain bridges.
- Full Lifecycle: From initial architecture and development through to third-party audits and mainnet deployment.
We don't just write code; we deliver battle-tested infrastructure with a focus on security, scalability, and maintainability.
Our engineers have deployed contracts securing over $500M+ in TVL across EVM chains like Ethereum, Polygon, and Arbitrum. We implement comprehensive testing suites (Hardhat/Foundry) and provide detailed documentation, enabling your team to own and iterate on the codebase post-launch.
Institutional-Grade Wallet APIs
Frequently Asked Questions for Technical Leaders
Clear answers to the most common technical and commercial questions from CTOs and engineering leads evaluating wallet infrastructure.
For a standard integration with EVM and Solana support, deployment is 2-3 weeks from kickoff to production. Complex deployments with custom MPC key management, 5+ chains, or bespoke compliance rules typically take 4-6 weeks. We provide a detailed project plan with weekly milestones during scoping.
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