Apache Synapse

Apache Synapse is a lightweight and high-performance Enterprise Service Bus (ESB).

Free software · by Apache Software Foundation · synapse.apache.org

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What Apache Synapse’s own pages say

What it says it doesApache Synapse is a lightweight and high-performance Enterprise Service Bus (ESB). synapse.apache.org
Open sourceYes synapse.apache.org
LicenseApache Software License 2.0 . synapse.apache.org

Each value is a quote AirStack found on the product’s own pages, read 2026-11-05. A missing field means AirStack has not found it on its pages.