Liink
Sector: Tertiary sector · Industry: Fintech · Organisation: JPMorgan Chase · Maturity level: Production
Liink is a blockchain-based platform by JPMorgan Chase to improve communication between banks. The platform enables secure and efficient information transfer in processes such as account verification or payment dispute resolution. Through blockchain technology, these banking processes are accelerated and associated costs are reduced.
Documentation status
- Project status: Production
- Evidence: Evidence high
- Editorial review: Ufuk Avci, 15 April 2026
Description
Traditional payment systems process transactions in batches — T+1 means a payment is only finally confirmed on the next business day. Blockchain-based systems, on the other hand, enable immediate, final verification: each transaction is visible and verifiable on the blockchain for authorised parties at the moment of execution.
The problem with classic real-time payment queries: banks have to wait for SWIFT messages routed through multiple correspondent banks. Each intermediary can introduce delays. SWIFT gpi (since 2017) has improved transparency with real-time tracking codes (UETR — Unique End-to-End Transaction Reference): over 90% of all gpi payments are credited within 30 minutes, 40% in under 5 minutes. Blockchain-native systems go further: Ripple/XRPL settles in 3–5 seconds with immediate finality. Fnality enables intraday real-time settlement for institutional wholesale payments. Specifically for real-time payment queries: corporate clients can instantly check via blockchain interfaces whether an expected payment has arrived, without waiting for bank statements or batch reports. ISO 20022-compatible blockchain message formats enable integration into existing ERP systems.
Perspectives
B2B — organisations perspective
Treasury teams can optimise working capital: As soon as a supplier payment is confirmed on the blockchain, the next transaction can be initiated immediately — without T+1 waiting times and without manual bank statement reconciliation.
B2C — consumers perspective
End customers indirectly benefit from faster transaction processing and reduced waiting times for cross-border payments or account openings. The improved efficiency of banks can result in better services and possibly lower fees.
Employees perspective
Bank employees benefit from the automation of recurring communication tasks and can focus on more strategic and customer-oriented activities. The platform significantly reduces manual effort in handling payment disputes and account verifications.
Benefits
General
- Blockchain technology enables a secure and immutable record of all communications between participating banks.
- Processes such as account verification and payment disputes are significantly accelerated, increasing operational efficiency.
- The reduction of manual communication processes leads to significant cost savings for all involved financial institutions.
B2B — organisations
- Integration via standardised APIs enables seamless connection to existing banking systems without major infrastructure changes.
Employees
- Employees are relieved from time-consuming manual verification processes and can focus on more value-adding tasks.
Challenges
General
- Acceptance of the platform by other financial institutions is critical for success, as network effects play a key role.
- Security vulnerabilities and scalability issues could undermine the trust of participating banks.
B2B — organisations
- Integration with different banking systems and ensuring interoperability pose technical challenges.
Employees
- Employees may need to learn new workflows and adapt to automated processes.
Technology foundation
Liink uses a permissioned blockchain, where only authorised participants have access and can validate transactions. This technology is particularly suitable for banks as it provides the required security and control while enabling efficient communication between financial institutions.
Implementation examples
Liink interbank communication
JPMorgan Chase wanted to modernise the inefficient and time-consuming communication between banks, which often took several days for simple verification processes. The goal was to create a secure, scalable and cost-efficient solution that could improve the operational efficiency of the entire banking system.
JPMorgan Chase developed and successfully launched Liink as a blockchain-based platform to improve communication between banks.
JPMorgan Chase implemented Liink as a comprehensive solution to the challenges of traditional interbank communication. The platform uses a permissioned blockchain architecture that allows authorised financial institutions to exchange information securely and efficiently. Through integration via APIs, existing banking systems can be seamlessly connected to the platform. The solution is already live and demonstrates measurable improvements in the speed and cost-efficiency of processes such as account verification and payment disputes.
The platform addresses issues of slow manual communication processes, high operating costs, and security risks in data transmission between financial institutions. Additionally, it reduces the risk of human error and enhances the compliance capabilities of participating banks.
Tags
Interbank communication, Account verification, Payment processing, Permissioned blockchain, Financial infrastructure