TSCoDe is a systematical conformational embedder for small molecules. It helps computational chemists build transition states and binding poses precisely in an automated way. It is thought as a tool to explore complex multimolecular conformational space fast and systematically, and yield a series of starting points for higher-level calculations.

Since its inclusion of many subroutines and functionality, it also serves as a computational toolbox to automate various routine tasks, via either MM, semiempirical or DFT methods.

TSCoDe is written in pure Python. It leverages various libraries like Numpy and Numba to perform the linear algebra required to translate and rotate molecules, NetworkX to perform graph operations, and the ASE environment to perform a set of structure manipulations. Additionally, Openbabel is required to perform I/O operation and optional force field optimizations. It supports various external calculators to outsource force field/semiempirical/DFT optimization:

• XTB (>=6.3)
• ORCA (>=4.2)
• Gaussian (>=9)
• MOPAC2016

Documentation on how to install and use the program can be found on readthedocs.