MUSCLE (Multi User Server Client Linking
Environment) is an N-way messaging server and
networking API. It includes client-side networking
APIs for various languages, including C, C++, C#,
Delphi, Java, and Python. MUSCLE lets programs
communicate over a network via streams of
serialized Message objects. The included server
program ("muscled") lets its clients message each
other and store information in its server-side
hierarchical database. The database supports
flexible queries via hierarchical wildcarding, and
"live" updates via a subscription mechanism.