Apache Camel - Apache Camel is a versatile open-source integration framework based on known enterprise integration patterns.
RabbitMQ - RabbitMQ is an open source message broker software.
Azure Service Bus - Learn how to set up messaging that connects applications and services across on-premises and cloud environments. Tutorials, videos, API references, and more.
Ethereum - Ethereum is a decentralized platform for applications that run exactly as programmed without any chance of fraud, censorship or third-party interference.
Software AG webMethods - Software AG’s webMethods enables you to quickly integrate systems, partners, data, devices and SaaS applications
Hyperledger - Hyperledger is a multi-project open source collaborative effort hosted by The Linux Foundation, created to advance cross-industry blockchain technologies.