There are 2 repositories under permutation-entropy topic.
EntroPy: complexity of time-series in Python (DEPRECATED)
Estimators for probabilities, entropies, and other complexity measures derived from observations in the context of nonlinear dynamics and complex systems
Python and R Codes for Computing Permutation Entropy
MATLAB script for efficiently computing values of permutation entropy from 1D time series in sliding windows
Neural network that has been trained to detect temporal correlation and distinguish chaotic from stochastic signals
A repository for calculation and analysis code of the Permutation Entropy and Statistical Complexity AnalYsis (PESCy)