XINS is a technology used to define, create, and invoke remote APIs. XINS is specification-oriented. When API specifications are written (in XML), XINS will transform them to HTML-based documentation and Java code for both the client-side and the server-side. The communication is based on HTTP. XINS competes with the complex SOAP technology. Main design goals include simplicity, scalability, and testability. XINS is not only a specification technology, but also an application development framework. It offers transaction logging, unique log documentation, and active code generation.
This is a performance release, adding the ability to tell how long the result can be cached in the specifications, to return "not modified" with "no data", and to received compressed data. Performance has improved over 3.0, and the JSON-RPC 2.0 calling convention has been added.