G2

Juan L.

Customer service agent

Mid-Market (51-1000 emp.)

12/29/2025

"Powerful but complex mediation engine"

4/5

What do you like best about Apache Synapse?

It’s a very lightweight and high-performance ESB. I love how it handles asynchronous messaging and XML mediation without consuming too many resources. It is highly reliable for routing complex traffic between legacy systems and modern APIs. Review collected by and hosted on G2.com.

What do you dislike about Apache Synapse?

The configuration is purely based on XML files, which feels very outdated and makes it hard to debug when something goes wrong. Also, the documentation is not very beginner-friendly, so you really need to be an expert to set it up correctly. Review collected by and hosted on G2.com.

What problems is Apache Synapse solving and how is that benefiting you?

This solution resolved our connectivity problems between legacy on-premise databases and our new cloud applications. By serving as a mediation layer, it eliminated the need to rewrite existing code. As a result, we've saved significant development time and achieved much more stable system integrations. Review collected by and hosted on G2.com.