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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

Blockchain Integration for Legacy Banking Systems

Specialized API and middleware integration connecting core banking platforms like Temenos and Finacle to blockchain networks. Enable asset tokenization, cross-border payments, and new digital products without replacing your core.
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 form the backbone of your Web3 application. Our development process is built on Solidity 0.8+ with OpenZeppelin security patterns, ensuring robust logic and upgradability from day one.

Deliver a secure, auditable, and maintainable codebase in 4-6 weeks for a standard MVP.

  • End-to-End Development: From technical specification to mainnet deployment and verification.
  • Protocol Expertise: ERC-20, ERC-721, ERC-1155, ERC-4626, and custom standards for DeFi, NFTs, and DAOs.
  • Security-First: Integrated audit preparation with formal verification and comprehensive test suites.
  • Gas Optimization: Code reviewed for >30% gas efficiency on common operations.
key-features-cards
ENTERPRISE-GRADE

Core Integration Capabilities

We deliver secure, compliant, and scalable infrastructure that bridges your legacy core banking systems with modern blockchain networks, enabling new revenue streams without operational disruption.

01

Secure API Gateway & Middleware

Deploy a dedicated, audited API layer that abstracts blockchain complexity. Our middleware handles transaction signing, nonce management, and gas optimization, providing a simple REST/GraphQL interface for your existing systems.

  • Certified Security: Built with OpenZeppelin libraries and audited by third-party firms.
  • Zero Trust Architecture: Enforces strict authentication and role-based access control.
99.95%
API Uptime SLA
< 50ms
Median Latency
02

Real-Time Settlement & Reconciliation

Replace batch processing with atomic, real-time settlement on-chain. Our integration engine automatically reconciles ledger entries between your core banking software (e.g., Temenos, Finacle) and blockchain state, eliminating manual errors.

  • Sub-Second Finality: Leverage high-throughput chains like Solana or Polygon for instant settlement.
  • Automated Audit Trail: Every transaction is immutably logged, simplifying compliance.
> 1000 TPS
Settlement Throughput
100%
Automated Reconciliation
03

Regulatory Compliance Engine

Embedded compliance modules for KYC/AML, transaction monitoring, and regulatory reporting. Our system integrates with leading providers (Chainalysis, Elliptic) and enforces rules directly at the protocol level before settlement.

  • Travel Rule (FATF) Ready: Built-in support for IVMS 101 data standards.
  • Jurisdictional Rule Sets: Pre-configured policies for major financial hubs.
< 2 sec
Sanctions Screening
SOC 2 Type II
Certification
04

Custody & Key Management

Enterprise-grade custody solutions using MPC (Multi-Party Computation) or HSM integration. We provide flexible key management architectures—from fully managed to hybrid models—that meet your security and control requirements.

  • No Single Point of Failure: Distributed key sharding with geographic separation.
  • HSM Integration: Compatible with Thales, Utimaco, and AWS CloudHSM.
Tier-4
Data Centers
24/7/365
Security Monitoring
05

Multi-Chain Interoperability

Future-proof your integration with abstraction layers for Ethereum, Polygon, Solana, and other EVM/L1 networks. Issue assets and process payments on the optimal chain for cost and speed, all through a unified interface.

  • Chain-Agnostic Routing: Intelligent routing based on fee, speed, and liquidity.
  • Cross-Chain Messaging: Secure asset and data transfer via CCIP or Wormhole.
10+
Supported Networks
< 5 min
Chain Deployment
06

Disaster Recovery & Monitoring

Full observability stack with custom dashboards, alerting, and automated failover procedures. We ensure business continuity with hot-standby nodes, geographic redundancy, and 24/7 incident response.

  • Real-Time Health Checks: Monitor node performance, block finality, and API endpoints.
  • Guaranteed RTO/RPO: Define and meet specific recovery time and point objectives.
< 15 min
Recovery Time Objective
Zero Data Loss
Recovery Point Objective
benefits
MEASURABLE RESULTS

Business Outcomes for Banking Leaders

Our blockchain integration delivers concrete, auditable improvements to core banking operations, moving beyond proof-of-concept to production-grade financial infrastructure.

01

Real-Time Settlement & Reconciliation

Replace multi-day batch processing with atomic, on-chain settlement. Eliminate reconciliation costs and unlock 24/7 transaction finality for payments, securities, and cross-border transfers.

< 5 sec
Settlement Time
100%
Auto-Reconciliation
02

Programmable Compliance & Audit Trails

Embed regulatory logic directly into transaction flows with smart contracts. Create immutable, real-time audit trails that reduce manual reporting overhead and ensure continuous compliance (AML/KYC).

90%
Faster Audits
Immutable
Transaction Ledger
03

Reduced Operational & Intermediary Costs

Automate manual processes and disintermediate correspondent banks and clearinghouses. Significantly lower transaction fees, operational overhead, and capital requirements for liquidity provisioning.

40-70%
Cost Reduction
24/7
Operational Uptime
04

New Revenue Streams & Product Innovation

Launch tokenized assets (bonds, funds, real estate), decentralized finance (DeFi) integrations, and blockchain-based trade finance platforms to serve next-generation clients and markets.

Weeks
Time-to-Market
ERC-3643
Compliant Tokenization
05

Enhanced Security & Fraud Prevention

Leverage cryptographic proofs and decentralized consensus to eliminate single points of failure. Our integrations are built with formal verification and undergo third-party audits (e.g., OpenZeppelin) for enterprise-grade security.

99.9%
Uptime SLA
Formal Verification
Security Standard
06

Future-Proof Interoperability

Build on agnostic architecture that connects private permissioned chains (Hyperledger Besu) with public networks (Ethereum, Polygon). Ensure seamless asset and data portability across the financial ecosystem.

Multi-Chain
Architecture
CCIP/ION
Protocol Support
A structured approach to modernizing your core banking platform

Phased Integration Roadmap

Our proven methodology for integrating blockchain capabilities into legacy banking systems, minimizing risk and ensuring operational continuity.

Phase & DeliverablesEstimated TimelineKey OutcomesYour Commitment

Phase 1: Discovery & Architecture

2-3 weeks

Technical design document, risk assessment, and integration blueprint

Provide API documentation and compliance requirements

Phase 2: Core Ledger Integration

4-6 weeks

Read-only blockchain data feed into core systems, proof-of-concept dashboard

Allocate sandbox environment and technical liaison

Phase 3: Smart Contract & Settlement

6-8 weeks

Deployed, audited smart contracts for asset tokenization or cross-border settlement

Finalize business logic and legal frameworks for new products

Phase 4: Pilot Launch & Monitoring

2-4 weeks

Live pilot with select clients, full observability stack, and performance report

Identify pilot user group and manage internal communications

Phase 5: Full Scale & Automation

4+ weeks

Automated reconciliation, full user-facing product launch, and handover documentation

Scale customer support and marketing for new product line

Total Project Duration

18-23 weeks

Production-ready blockchain banking product with full audit trail

Dedicated cross-functional team (Product, Tech, Legal)

how-we-deliver
PROVEN FRAMEWORK

Our Integration Methodology

Our battle-tested, four-phase methodology de-risks blockchain integration for financial institutions, ensuring regulatory compliance, security, and a seamless transition from legacy systems to modern, interoperable infrastructure.

01

Architecture & Compliance Audit

We conduct a comprehensive analysis of your existing core banking systems and regulatory requirements. Our team maps data flows, identifies integration points, and designs a compliant architecture using enterprise-grade protocols like Hyperledger Besu or permissioned EVM chains.

100+
Regulatory Checks
< 2 weeks
Initial Assessment
02

Secure Gateway Development

We build and deploy a secure, non-custodial middleware layer (REST APIs, WebSocket feeds) that acts as a firewall between your legacy databases and the blockchain. This ensures real-time data synchronization and transaction processing without exposing core systems.

SOC 2
Compliant
99.95%
Gateway Uptime SLA
03

Smart Contract & Tokenization Engine

Our engineers develop and formally verify custom smart contracts for asset tokenization (ERC-3643, ERC-20), automated settlements, and compliance logic. We implement on-chain access controls and integrate with Chainlink oracles for real-world data.

Formal Verification
Security Standard
OpenZeppelin
Audited Libraries
04

Deployment & Monitoring Suite

We manage the phased deployment with zero-downtime strategies and provide a dedicated monitoring dashboard. You gain real-time visibility into transaction volumes, network health, and compliance alerts, with 24/7 incident response.

24/7
SRE Support
< 50ms
Alert Latency
security-compliance
CORE SERVICE

Smart Contract Development

Secure, production-ready smart contracts built by Web3-native engineers.

We architect and deploy custom smart contracts that are secure, gas-optimized, and tailored to your protocol's exact logic. Our development process is built on audited standards and battle-tested patterns.

  • Security-First Development: Built with OpenZeppelin libraries and undergo rigorous internal audits before deployment.
  • Gas Optimization: Every contract is profiled and optimized for minimum transaction costs and maximum user savings.
  • Full-Stack Integration: We deliver contracts ready to integrate with your frontend, including comprehensive testing suites and deployment scripts.

Deliver a secure, auditable foundation for your dApp with contracts that execute exactly as intended.

Blockchain Integration for Legacy Banking

Technical & Commercial FAQs

Answers to the most common technical and commercial questions from financial institutions evaluating blockchain integration.

Our standard engagement follows a 4-phase methodology: Discovery & Architecture (1-2 weeks), Development & Integration (4-8 weeks), Security Audit & Testing (2 weeks), and Production Deployment (1 week). For a standard core banking ledger integration, the typical end-to-end timeline is 8-12 weeks. We provide a detailed project plan with weekly milestones after the initial scoping call.

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