Short description: A highly curated Pauling File dataset based on ~0.5M publications and backing up Springer Materials, ICDD PDF, ASM APD, MedeA, Pearson Crystal Data, AtomWork Advanced, etc.

Project homepage: https://mpds.io

Index Meta-Database URL: https://providers.optimade.org/index-metadbs/mpds

Number of structures: 507,178

Databases served by this provider

• Materials Platform for Data Science (mpds, default sub-database)

  https://api.mpds.io

  A highly curated Pauling File dataset based on ~0.5M publications and backing up Springer Materials, ICDD PDF, ASM APD, MedeA, Pearson Crystal Data, AtomWork Advanced, etc.

  Properties served by this database:

  By entry type (click to expand):
  • extensions/phase_diagrams

    • The full list of standard OPTIMADE properties.
  • extensions/phases

    • The full list of standard OPTIMADE properties.
  • extensions/properties

    • The full list of standard OPTIMADE properties.
  • structures

    • The full list of standard OPTIMADE properties.

  Validation

  ValidationResults of validation Passed 9 / 14

  ❌ https://api.mpds.io/v1/info/structures
  
  

  ValidationError: 4 validation errors for EntryInfoResponse
  data.formats
  Field required [type=missing, input_value={'type': 'info', 'attribu... 'extensions/phases']}}}, input_type=dict]
  For further information visit https://errors.pydantic.dev/2.11/v/missing
  data.description
  Field required [type=missing, input_value={'type': 'info', 'attribu... 'extensions/phases']}}}, input_type=dict]
  For further information visit https://errors.pydantic.dev/2.11/v/missing
  data.properties
  Field required [type=missing, input_value={'type': 'info', 'attribu... 'extensions/phases']}}}, input_type=dict]
  For further information visit https://errors.pydantic.dev/2.11/v/missing
  data.output_fields_by_format
  Field required [type=missing, input_value={'type': 'info', 'attribu... 'extensions/phases']}}}, input_type=dict]
  For further information visit https://errors.pydantic.dev/2.11/v/missing

  
  ❌ https://api.mpds.io/v1/structures?page_limit=4&response_fields=species,elements_ratios,immutable_id,assemblies,nperiodic_dimensions,chemical_formula_anonymous,cartesian_site_positions,last_modified,nelements,chemical_formula_descriptive,elements,species_at_sites,dimension_types,nsites,lattice_vectors,chemical_formula_hill,chemical_formula_reduced,structure_features
  
  

  ResponseError: Request to 'structures?page_limit=4&response_fields=species,elements_ratios,immutable_id,assemblies,nperiodic_dimensions,chemical_formula_anonymous,cartesian_site_positions,last_modified,nelements,chemical_formula_descriptive,elements,species_at_sites,dimension_types,nsites,lattice_vectors,chemical_formula_hill,chemical_formula_reduced,structure_features' returned HTTP status code 400.
  Additional details from implementation:
  Optimade API Response: Page_limit must be either 1, 5, 10, 50, 100, or 750. (N/A)

  
  ❌ https://api.mpds.io/v1
  
  

  ResponseError: Unable to test endpoint `page_limit` parameter.

  
  ❌ https://api.mpds.io/v1/structures?page_limit=4&response_fields=species,elements_ratios,immutable_id,assemblies,nperiodic_dimensions,chemical_formula_anonymous,cartesian_site_positions,last_modified,nelements,chemical_formula_descriptive,elements,species_at_sites,dimension_types,nsites,lattice_vectors,chemical_formula_hill,chemical_formula_reduced,structure_features
  
  

  ResponseError: Request failed

  
  ❌ https://api.mpds.io/v1
  
  

  ResponseError: Unable to generate filters for endpoint structures: 'info/structures' response was malformed.