Featomic is a library for the efficient computing of representations for atomistic machine learning also called “descriptors” or “fingerprints”. These representations can be used for atomistic machine learning (ml) models including ml potentials, visualization or similarity analysis.
The core of the library is written in Rust and we provide APIs for C/C++ and Python as well.
List of implemented representations
representation |
description |
gradients |
|---|---|---|
Spherical expansion |
Atoms are represented by the expansion of their neighbor’s density on radial basis and spherical harmonics. This is the core of representations in SOAP (Smooth Overlap of Atomic Positions) |
positions, strain, cell |
SOAP radial spectrum |
Atoms are represented by 2-body correlations of their neighbors’ density |
positions, strain, cell |
SOAP power spectrum |
Atoms are represented by 3-body correlations of their neighbors’ density |
positions, strain, cell |
LODE Spherical Expansion |
Core of representations in LODE (Long distance equivariant) |
positions |
Sorted distances |
Each atom is represented by a vector of distance to its neighbors within the spherical cutoff |
no |
Neighbor List |
Each pair is represented by the vector between the atoms. This is intended to be used as a starting point for more complex representations |
positions |
AtomicComposition |
Obtaining the stoichiometric information of a system |
positions, strain, cell |
For details, tutorials, and examples, please have a look at our documentation.
Citing featomic
If you found featomic useful for your work, please cite the corresponding article:
F. Bigi, J.W. Abbott, P. Loche et al., Metatensor and metatomic: foundational libraries for interoperable atomistic machine learning, (2026). https://doi.org/10.1063/5.0304911
@article{bigi_metatensor_2026,
title = {Metatensor and Metatomic: {{Foundational}} Libraries for Interoperable Atomistic Machine Learning},
shorttitle = {Metatensor and Metatomic},
author = {Bigi, Filippo and Abbott, Joseph W. and Loche, Philip and Mazitov, Arslan and Tisi, Davide and Langer, Marcel F. and Goscinski, Alexander and Pegolo, Paolo and Chong, Sanggyu and Goswami, Rohit and Febrer, Pol and Chorna, Sofiia and Kellner, Matthias and Ceriotti, Michele and Fraux, Guillaume},
year = 2026,
month = feb,
journal = {J. Chem. Phys.},
volume = {164},
number = {6},
pages = {064113},
issn = {0021-9606},
doi = {10.1063/5.0304911},
}2 maintainers
Release files for featomic 0.6.7
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| featomic-0.6.7.tar.gz | 319.2 kB | Details |
Built distributions (wheels)
| File | Reset | |||
|---|---|---|---|---|
| featomic-0.6.7-py3-none-win_amd64.whl | Python 3 | none | Windows x86-64 | Details |
| featomic-0.6.7-py3-none-manylinux2014_x86_64.manylinux_2_17_x86_64.whl | Python 3 | none | Linux glibc 2.17+ x86-64 | Details |
| featomic-0.6.7-py3-none-manylinux2014_aarch64.manylinux_2_17_aarch64.whl | Python 3 | none | Linux glibc 2.17+ ARM64 | Details |
| featomic-0.6.7-py3-none-macosx_11_0_x86_64.whl | Python 3 | none | macOS 11.0+ x86-64 | Details |
| featomic-0.6.7-py3-none-macosx_11_0_arm64.whl | Python 3 | none | macOS 11.0+ ARM64 | Details |
Total release size: 6.0 MB
Release files / featomic-0.6.7.tar.gz
| Download URL | featomic-0.6.7.tar.gz |
|---|---|
| Size | 319.2 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
b683d2ef127a2813e727eaf34a9caee40e5354ce56c5624f2adf7df52f930f40
|
|
BLAKE2b-256 checksum How to use checksums |
f56f43e6bd1005037c55899f60069ab5c29835ecfc43c0ca4449ae46efcf212b
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/6.2.0 CPython/3.14.4
|
Release files / featomic-0.6.7-py3-none-win_amd64.whl
| Download URL | featomic-0.6.7-py3-none-win_amd64.whl |
|---|---|
| Size | 1.1 MB |
| Tags | Python 3 Windows x86-64 |
|
SHA-256 checksum How to use checksums |
f27530cb98f91c524c1826509395e16818738e2fcbe67b14f457c7977a4a800e
|
|
BLAKE2b-256 checksum How to use checksums |
43f7e965b76ec00e66b1ebaa73128a790b71d6bb84a3d64d95b0b78b7aa585f2
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/6.2.0 CPython/3.14.4
|
Release files / featomic-0.6.7-py3-none-manylinux2014_x86_64.manylinux_2_17_x86_64.whl
| Download URL | featomic-0.6.7-py3-none-manylinux2014_x86_64.manylinux_2_17_x86_64.whl |
|---|---|
| Size | 1.2 MB |
| Tags | Linux glibc 2.17+ x86-64 Python 3 |
|
SHA-256 checksum How to use checksums |
7ffc4b7df849a36fc6d1402a43c6ae88ac58cee4a443195e8df0e0bb16bb74cb
|
|
BLAKE2b-256 checksum How to use checksums |
71f5c6d5e8599528ebc77fdfe1a1cfd5ebd2b31c6d8f9c610b07d16d7cbeea21
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/6.2.0 CPython/3.14.4
|
Release files / featomic-0.6.7-py3-none-manylinux2014_aarch64.manylinux_2_17_aarch64.whl
| Download URL | featomic-0.6.7-py3-none-manylinux2014_aarch64.manylinux_2_17_aarch64.whl |
|---|---|
| Size | 1.1 MB |
| Tags | Linux glibc 2.17+ ARM64 Python 3 |
|
SHA-256 checksum How to use checksums |
3df497aa4cbadd3e4e3a865ad1c5ee351f2007c40dbc5cc2a2bc687b53368985
|
|
BLAKE2b-256 checksum How to use checksums |
b5c047068e41c8e7a8d909347feeb7664f903b32ca22f4bcc3d7f4ec1fc09334
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/6.2.0 CPython/3.14.4
|
Release files / featomic-0.6.7-py3-none-macosx_11_0_x86_64.whl
| Download URL | featomic-0.6.7-py3-none-macosx_11_0_x86_64.whl |
|---|---|
| Size | 1.2 MB |
| Tags | Python 3 macOS 11.0+ x86-64 |
|
SHA-256 checksum How to use checksums |
13502487d4925fca287c443cee47d7efa7f6c295b5aec2afe6941b8b5ae1a559
|
|
BLAKE2b-256 checksum How to use checksums |
70486466d8e501f6681d2999d6c7c279532792811856e3fb498f1ad57a739a7e
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/6.2.0 CPython/3.14.4
|
Release files / featomic-0.6.7-py3-none-macosx_11_0_arm64.whl
| Download URL | featomic-0.6.7-py3-none-macosx_11_0_arm64.whl |
|---|---|
| Size | 1.0 MB |
| Tags | Python 3 macOS 11.0+ ARM64 |
|
SHA-256 checksum How to use checksums |
112d85f775735c1d9387a12876c2b26adefd68db82f7071dfe5adf4dddd4f647
|
|
BLAKE2b-256 checksum How to use checksums |
4ea5da8356d0586c09e6aa61e2d18e9946e1ea5494d36c4d7b5d5e7c67e91e58
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
No |
| Uploaded via |
twine/6.2.0 CPython/3.14.4
|
