There are 2 repositories under rete-algorithm topic.
A boilerplate/proof-of-concept for a Rete Algorithm implementation in Elixir
Simple RETE algorithm implementation
Rules Engine written in TypeScript implementing the Rete algorithm
Forward Chaining Rules compiler. RETE algorithm widely extended. Fastest implementation made in C++. Node side memories optimized with BTrees to ease matching
Simple RETE algorithm for FIUBA's 75.69