Apache Camel - Apache Camel is a versatile open-source integration framework based on known enterprise integration patterns.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Software AG webMethods - Software AG’s webMethods enables you to quickly integrate systems, partners, data, devices and SaaS applications
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
IBM App Connect - IBM App Connect is the all-in-one integration tool for connecting apps, integrating data, building APIs and acting on events
Prometheus - An open-source systems monitoring and alerting toolkit.