We architect and deploy custom smart contracts that form the backbone of your Web3 application. Our process ensures security-first development with formal verification, comprehensive testing, and third-party audits.
LABS
Services
Legacy System API Bridge Development
We build custom middleware and API bridges that connect your new blockchain payment processor to existing legacy banking, accounting, and CRM systems, enabling seamless merchant payment processing.
Chainscore © 2026
overview
CORE SERVICE
Smart Contract Development
Secure, production-ready smart contracts built for scale and compliance.
- Token Standards: Custom
ERC-20,ERC-721,ERC-1155, andERC-4626vaults. - DeFi Protocols: Automated Market Makers (AMMs), lending/borrowing pools, and yield strategies.
- Governance Systems: DAO frameworks with on-chain voting and treasury management.
- Enterprise Logic: Supply chain tracking, asset tokenization, and verifiable credentials.
We deliver audited, gas-optimized contracts with a 99.9% uptime SLA and full documentation, reducing your time-to-market from months to weeks.
key-features-cards
ENTERPRISE-GRADE INTEGRATION
Core Capabilities of Our API Bridge Development
We build secure, scalable bridges that connect your legacy systems to blockchain networks, enabling real-time data flow and automated smart contract execution.
01
Custom Connector Development
Tailored API adapters for legacy systems (SAP, Oracle, Salesforce) and blockchain protocols (EVM, Solana, Cosmos). We handle authentication, data serialization, and protocol-specific nuances.
2-4 weeks
Integration Time
50+
Supported Systems
02
Real-Time Event Monitoring
Low-latency listeners for on-chain events and off-chain system changes. Triggers automated workflows and ensures data consistency across your entire stack.
< 1 sec
Event Detection
99.95%
Reliability
03
Enterprise Security & Compliance
Built with OWASP Top 10 principles. Includes role-based access control, audit logging, and compliance-ready architecture for financial data handling.
SOC 2
Framework
End-to-End
Encryption
04
Automated Smart Contract Interaction
Programmatic execution of contract functions (minting, transfers, governance) based on API inputs. Includes gas optimization and nonce management for high-volume operations.
0 Failed TX
Guarantee
Multi-Chain
Support
05
Scalable Bridge Architecture
Horizontally scalable microservices deployed on AWS/GCP/Azure. Designed for high throughput with load balancing and automatic failover to maintain SLA.
10k+ TPS
Throughput
99.9%
Uptime SLA
06
Comprehensive Monitoring & Alerts
Real-time dashboards for bridge health, transaction success rates, and system latency. Proactive alerts via Slack, PagerDuty, or email for immediate incident response.
< 5 min
MTTD
24/7
Monitoring
benefits
TECHNICAL & COMMERCIAL ROI
Business Outcomes: Why Invest in a Custom Bridge
A purpose-built API bridge is a strategic infrastructure investment. It delivers measurable improvements in operational efficiency, security, and market agility that directly impact your bottom line.
01
Eliminate Manual Reconciliation
Automate data flow between legacy systems and blockchain networks, reducing manual processing by 90% and eliminating costly human error in financial reconciliation.
90%
Reduction in Manual Work
24/7
Automated Operation
02
Future-Proof Your Tech Stack
Gain a modular, scalable integration layer that isolates legacy complexity. Add support for new chains (Ethereum, Solana, Polygon) without modifying core banking systems.
Multi-Chain
Architecture
Weeks, Not Months
New Chain Integration
03
Guaranteed Transaction Integrity
Our bridges implement cryptographic proof verification and nonce management, ensuring 100% data consistency and preventing double-spends or lost transactions.
100%
Data Consistency
Zero
Settlement Failures
04
Accelerate Time-to-Market
Deploy a production-ready, audited bridge in weeks instead of building in-house for quarters. Focus your engineering resources on core product differentiation.
< 6 Weeks
To Production
Certik Audited
Security Standard
05
Reduce Total Cost of Ownership
Avoid the hidden costs of maintaining brittle, custom integrations. Our managed service model provides predictable OpEx versus unpredictable in-house development and maintenance.
60%
Lower TCO
Predictable
Operating Cost
06
Unlock New Revenue Streams
Enable real-world asset tokenization, cross-border stablecoin settlements, and DeFi yield opportunities by securely connecting traditional finance to blockchain liquidity.
New Products
Enabled in Weeks
Global
Market Access
The Infrastructure Decision Matrix
Custom Bridge vs. Manual Processes & Off-the-Shelf Tools
A technical and financial comparison of approaches for connecting legacy systems to blockchain networks. This table helps CTOs evaluate the trade-offs between development effort, security, and long-term operational costs.
| Critical Factor | Manual Scripts / DIY | Generic Bridge SDK | Chainscore Custom Bridge |
|---|---|---|---|
Time to Production | 3-6 months | 1-2 months | 4-8 weeks |
Upfront Development Cost | $150K+ | $50K - $100K | $75K - $200K |
Security & Audit Burden | Your team (High Risk) | Limited (Medium Risk) | Our team (Audited & Insured) |
Protocol Flexibility | Full (You build it) | Limited to SDK features | Full (Designed for your stack) |
Ongoing Maintenance | Your DevOps team | Your team + vendor updates | Optional SLA with 99.9% uptime |
Multi-Chain Support | Manual per chain | Pre-defined list | Custom (EVM, L2s, Cosmos, etc.) |
Compliance & Monitoring | You build it | Basic logs only | Built-in dashboards & alerting |
Total Cost of Ownership (Year 1) | $300K+ | $120K - $180K | $100K - $250K (predictable) |
Key Risk | Critical failure, audit gaps | Vendor lock-in, scaling limits | Minimized (managed service) |
how-we-deliver
TRANSPARENT & PREDICTABLE
Our Delivery Process: From Discovery to Deployment
A structured, four-phase approach that de-risks your legacy integration, ensures technical alignment, and delivers a production-ready API bridge on schedule.
01
Phase 1: Discovery & Architecture
We conduct a deep technical audit of your legacy system (ERP, CRM, core banking) to map data models, identify security constraints, and design the optimal bridge architecture. This phase establishes a clear, actionable roadmap.
2-3 days
Technical Audit
1 Week
Architecture Plan
02
Phase 2: Secure Connector Development
Our engineers build the secure, fault-tolerant middleware layer. This includes authentication adapters, data transformation logic, and robust error handling to ensure seamless, reliable communication between your legacy API and the blockchain layer.
OAuth2 / API Keys
Auth Supported
99.9%
Target Uptime
03
Phase 3: Smart Contract & Bridge Logic
We develop and audit the on-chain smart contracts that receive, validate, and process data from your legacy system. Contracts are built with gas optimization and security as first principles, using established patterns from OpenZeppelin.
Solidity 0.8+
Language
OpenZeppelin
Security Base
04
Phase 4: Deployment & Monitoring
We manage the deployment to your chosen testnet/mainnet, conduct end-to-end integration testing, and implement comprehensive monitoring dashboards. You receive full documentation and a handover session for your team.
< 2 Weeks
Deployment Timeline
Full Docs
Deliverable
security-compliance
SECURE FOUNDATIONS
Custom Smart Contract Development
Production-ready smart contracts built with enterprise-grade security and gas optimization.
We architect and deploy custom, audited smart contracts that form the secure backbone of your Web3 application. Our development process is built on OpenZeppelin standards and rigorous security practices to mitigate risk from day one.
We deliver contracts that are secure by design, not as an afterthought.
- Full Lifecycle Development: From specification and
Solidity/Rustcoding to deployment onEVM/Solana/Cosmoschains. - Gas Optimization: Expert-level tuning to reduce user transaction costs by up to 40%.
- Comprehensive Audits: Internal reviews followed by coordination with top-tier third-party firms like CertiK or Quantstamp.
- Upgradeability Patterns: Implementation of secure proxy patterns (
TransparentProxy,UUPS) for future-proofing.
Our engineers specialize in complex contract systems:
- DeFi Protocols: Automated Market Makers (AMMs), lending/borrowing pools, yield aggregators.
- NFT Ecosystems:
ERC-721A,ERC-1155with advanced minting, staking, and royalty mechanics. - Enterprise Logic: Custom business logic, multi-signature wallets, and DAO governance modules.
Legacy System API Bridge
Frequently Asked Questions
Common questions from CTOs and technical leads about integrating legacy systems with blockchain.
Typical delivery is 4-8 weeks from kickoff to production. A standard bridge connecting a REST API to a single blockchain (e.g., Ethereum) takes 4-5 weeks. Complex integrations with multiple data sources, custom logic, or high-frequency updates extend to 6-8 weeks. We follow a phased approach: 1-week discovery, 2-3 weeks core development, 1-2 weeks testing/audit, and 1-week deployment.
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