Basic Examples (2) 

Obtain an API key from the Materials Project website and enter it as your SystemCredential (one time only):

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Get the properties of wüstite:

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Scope (10) 

Get common properties of all materials matching a chemical formula specified as a string:

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Get the specified property:

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Several properties:

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Get all of the available properties of wüstite:

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Give a material ID as a search criterion:

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Specify the search criterion as a Molecule object:

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Search for properties of a chemical Entity object:

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Use a wild card in the chemical formula:

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Specify the criterion as a Mongo database search string:

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Give an Association corresponding to a Mongo-style query as a criterion:

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Specify the format to export the query string:

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Make several calls to the Materials Project database in the same external session:

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End the session:

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Options (3) 

Endpoint (2) 

Use the standard access URL of the Materials Project:

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Specify the access URL:

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ChunkSize (1) 

Setting "ChunkSize"→0 is useful for retrieving simple properties, such as material IDs:

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Applications (3) 

Obtain and plot the molecules of the selected materials:

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Obtain a Crystallographic Information File (CIF) for the specified material:

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Obtain the elastic tensor of the specified material:

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Possible Issues (2) 

On macOS, the installation of the underlying Pymatgen package in the system Python may fail:

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Use a Python version installed with Homebrew, for instance using pyenv:

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