Apache Thrift Review

Although it was initially developed by Facebook, it's now open source under the Apache License.

The IDL for Thrift looks quite similar to JSON / is comfortably human readable.

The current list includes C, C++, C#, Java, Python, PHP, Perl, Ruby and quite a few others.

Considering that Thrift's WSDL documents tend to be smaller and more straightforward means that it has easy to read definition files.