atomate2 is developed under a modified BSD license, reproduced below:

atomate2 Copyright (c) 2021, The Regents of the University of
California, through Lawrence Berkeley National Laboratory (subject
to receipt of any required approvals from the U.S. Dept. of Energy).

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:

(1) Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.

(2) Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided with
the distribution.

(3) Neither the name of the University of California, Lawrence
Berkeley National Laboratory, U.S. Dept. of Energy nor the names of
its contributors may be used to endorse or promote products derived
from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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You are under no obligation whatsoever to provide any bug fixes,
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of the source code ("Enhancements") to anyone; however, if you
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