ATLANTA — June 11, 2026
Executive Summary
Webster Bank has gone live on Prolific Banking’s FI-Streams Connector, leveraging Plaid’s FDX-aligned Core Exchange to expand secure financial data connectivity for commercial clients. The implementation enables secure access to account information, transaction history, authentication capabilities, and third-party application connectivity while synchronizing with Webster Bank’s digital banking platform. The deployment supports growing demand for open banking, data interoperability, and secure financial connectivity, providing commercial customers with a streamlined experience when connecting accounts to external financial applications and services.
Announcement Overview
Webster Bank and Prolific Banking have successfully implemented the FI-Streams Connector, a purpose-built open banking solution designed specifically for commercial banking environments. Through integration with Plaid’s Core Exchange, Webster Bank’s commercial clients can securely connect accounts to thousands of financial applications, including accounting platforms, treasury management solutions, and financial management tools. The implementation includes synchronization of account entitlements, user authorization, and authentication controls, enabling secure and seamless financial data access. According to the organizations, the deployment reflects a shared commitment to delivering commercial-focused open banking infrastructure that balances connectivity, security, institutional control, and client-specific operational requirements.
Key Announcement Details
- Announcement Type: Open Banking Infrastructure Implementation
- Announcement Date: June 11, 2026
- Bank: Webster Bank
- Parent Company: Webster Financial Corporation (NYSE: WBS)
- Technology Provider: Prolific Banking, Inc.
- Connectivity Partner: Plaid
- Solution Implemented: FI-Streams Connector
- Underlying Connectivity Framework: Plaid Core Exchange
- API Standard: Financial Data Exchange (FDX)-aligned API specification
- Implementation Status: Live
- Primary Purpose: Enable secure financial data connectivity for commercial and business banking clients
- Customer Segment: Commercial banking clients and business banking clients
- Core Capabilities Enabled: Account information access, transaction history access, authentication functionality
- Open Banking Capability: Secure connection between bank accounts and third-party financial applications
- Supported Application Categories: Accounting platforms, treasury management tools, personal financial management applications, business financial software
- Authorization Framework: Platform-native authorization and entitlement synchronization
- Digital Banking Integration: Synchronization with Webster Bank’s digital banking platform
- Account Controls Included: Account entitlements, user authorization, authentication controls
- Customer Benefit: Secure and seamless account-linking experience
- Network Access: Connectivity to more than 7,000 applications and services through the Plaid network
- Commercial Banking Focus: Purpose-built for commercial and business banking environments
- Connector Configuration: Custom-configured specifically for Webster Bank workflows and authorization requirements
- Infrastructure Model: Open banking infrastructure for institutional-scale financial connectivity
- Security Features: Secure data access, authentication management, authorization synchronization, controlled account connectivity
- Strategic Objective: Expand connected banking capabilities for commercial clients
- Operational Objective: Improve interoperability between banking systems and third-party financial applications
- Implementation Partners: Webster Bank, Prolific Banking, Plaid
- Webster Executive Quoted: Adam Hoffman, Executive Managing Director & Head of Treasury Management
- Prolific Banking Executive Quoted: Scott Graf, President & Founder
- Plaid Executive Quoted: Aly Yarris, Data Partnerships Lead
- Webster Headquarters: Stamford, Connecticut
- Webster Founded: 1935
- Webster Assets: More than $80 billion in total assets
- Prolific Banking Headquarters: Atlanta, Georgia
- Prolific Banking Founded: 2020
What We Built Together
Webster Bank and Prolific Banking collaborated to design, configure, and deploy the FI-Streams Connector, a commercial banking connectivity solution developed specifically for institutional banking environments.
According to the announcement, the implementation was not deployed as a generic off-the-shelf solution. Instead, every component was designed and configured to align with Webster Bank’s commercial banking requirements, customer workflows, authorization structures, and operational processes.
Key implementation objectives included:
- Secure financial data connectivity
- Commercial banking workflow alignment
- Digital banking platform integration
- Enhanced client authorization controls
- Open banking enablement
- Third-party application connectivity
The organizations stated that the deployment supports secure data exchange while preserving the operational controls required within commercial banking environments.
Custom-Configured Connector
The FI-Streams Connector was configured specifically for Webster Bank’s commercial banking operations.
Key characteristics of the implementation include:
- Customized commercial banking workflows
- Institution-specific authorization models
- Tailored account access controls
- Commercial client-focused configuration
- Platform-specific integration architecture
According to the announcement, every component of the connector was aligned with Webster Bank’s internal commercial banking requirements rather than relying on standardized configurations.
This approach was designed to ensure that data connectivity, authorization management, and customer experiences align with the bank’s existing commercial banking framework.
Commercial & Business Client Focus
The implementation was developed specifically for Webster Bank’s commercial and business banking customer base.
Key capabilities available to commercial customers include:
- Secure access to account information
- Transaction history connectivity
- Authentication functionality
- Third-party application integration
- Institutional-scale data access
- Commercial banking interoperability
The organizations stated that the solution was purpose-built for commercial banking environments where authorization controls, security requirements, and operational complexity often differ significantly from consumer banking use cases.
The deployment enables commercial clients to securely connect financial accounts while maintaining access controls aligned with institutional banking requirements.
Platform-Native Authorization
A central component of the implementation is the integration with Webster Bank’s digital banking platform.
According to the announcement, the deployment includes synchronization for:
- Account entitlements
- User authorization
- Authentication management
- Access permissions
- Digital banking controls
The integration is designed to create a seamless experience for commercial customers linking accounts to external financial applications while maintaining security and authorization standards established by the bank.
By synchronizing directly with existing digital banking systems, the implementation allows account permissions and authorization structures to remain aligned across banking and third-party environments.
Open Banking Infrastructure
The implementation expands Webster Bank’s open banking capabilities for commercial clients.
According to the organizations, the infrastructure enables customers to connect banking accounts with external applications, including:
- Accounting software
- Treasury management tools
- Financial management platforms
- Business financial applications
- Connected banking services
The deployment reflects increasing demand among commercial customers for secure data portability and interoperability between banking platforms and business technology systems.
The organizations stated that the solution enables connectivity without requiring businesses to sacrifice security, authorization controls, or institutional oversight.
Powered by Plaid’s Core Exchange
The implementation leverages Plaid’s Core Exchange, which utilizes an FDX-aligned API specification designed to support secure financial data exchange.
Through the integration, Webster Bank customers gain access to Plaid’s extensive application ecosystem while maintaining connectivity through a secure banking infrastructure framework.
The deployment supports:
- Secure API connectivity
- Standardized data exchange
- Application interoperability
- Enhanced financial data access
- Institution-controlled authorization
According to the announcement, the implementation combines Prolific Banking’s commercial banking expertise with Plaid’s connectivity framework to create a streamlined experience for commercial customers.
Plaid Network Access
Through Plaid’s Core Exchange infrastructure, Webster Bank commercial customers can connect their accounts to more than 7,000 applications and services within the Plaid network.
Supported categories include:
- Accounting platforms
- Treasury management solutions
- Financial planning applications
- Business financial software
- Connected banking services
- Financial data platforms
The organizations stated that the integration expands the range of financial applications available to Webster Bank’s commercial customer base while maintaining secure connectivity and institutional oversight.
This connectivity enables businesses to streamline financial operations through direct connections between banking accounts and external technology platforms.
Webster Bank Commentary
Adam Hoffman
Executive Managing Director & Head of Treasury Management, Webster Bank
“Plaid and Prolific Banking offer innovative and secure platforms through which our commercial clients connect their bank accounts to external applications. By integrating with Plaid and Prolific Banking, Webster continues to meet the growing demand for connected banking experiences.”
According to Webster Bank, the implementation supports the institution’s efforts to provide commercial customers with secure access to connected banking services while meeting increasing demand for interoperability across financial technology platforms.
Growing Demand for Connected Banking Experiences
The announcement notes that financial institutions are experiencing increased demand for:
- Real-time data access
- Financial interoperability
- Connected banking ecosystems
- Third-party application integration
- Secure information sharing
- Commercial banking connectivity
As commercial banking clients continue adopting digital financial tools, institutions are increasingly focused on providing secure access to financial information across multiple systems and applications.
According to the organizations, the implementation reflects an effort to support these evolving requirements through commercial-focused open banking infrastructure.
Prolific Banking Commentary
Scott Graf
President & Founder, Prolific Banking
“The modern banking customer is tech-savvy, mobile-first, and values convenience. Prolific Banking is committed to an open digital operating model and the key to that model is data integration.”
The company stated that data connectivity remains a foundational component of modern commercial banking environments and continues to play a growing role in digital banking experiences.
Plaid Commentary
Aly Yarris
Data Partnerships Lead, Plaid
“Core Exchange gives financial institutions like Webster Bank a direct, secure path into the Plaid network, so their commercial clients can benefit from the apps and services powered by Plaid, without friction or compromising on security.”
According to Plaid, Core Exchange is designed to provide financial institutions with secure access to application ecosystems while preserving security standards and institutional controls.
Implementation Delivers Secure Financial Data Connectivity
The implementation provides Webster Bank commercial clients with access to:
- Business account information
- Transaction history
- Authentication capabilities
- Account authorization controls
- Third-party application connectivity
- Real-time platform synchronization
Additional capabilities include:
- Digital banking platform integration
- Entitlement synchronization
- User authorization management
- Secure data sharing
- Commercial-scale connectivity
The organizations stated that all functionality is delivered through Prolific Banking’s FI-Streams Connector, creating a unified infrastructure layer for secure financial connectivity.
About Webster Bank
Webster Financial Corporation (NYSE: WBS) is the holding company for Webster Bank, N.A. Founded in 1935 and headquartered in Stamford, Connecticut, Webster is a values-driven financial institution with more than $80 billion in total assets.
The organization serves businesses, individuals, and families through three primary business segments:
- Commercial Banking
- Healthcare Financial Services
- Consumer Banking
Webster’s core operating footprint extends throughout the Northeastern United States, with certain business operations serving broader geographic markets.
About Prolific Banking
Prolific Banking, Inc. was founded in 2020 and is headquartered in Atlanta, Georgia.
The company provides a platform-independent commercial banking layer for financial institutions through its Prolific Open Digital (POD) platform.
Key platform capabilities include:
- Treasury onboarding
- Commercial payments
- ERP integration
- Open APIs
- Reporting infrastructure
- AI-native operational capabilities
Prolific serves commercial banks and financial institutions throughout the United States, including regional, super-regional, multi-charter, and acquisitive banking organizations.
Media Contact
For additional information, visit prolificbanking.com.
Source Attribution
Source: Company announcement
