Short description: CMR is a collection of materials repositories from different projects such as C2DB, QPOD and many more

Project homepage: https://cmr.fysik.dtu.dk

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

Number of structures: 16,905

Databases served by this provider

• Computational materials repository (CMR) (cmr, default sub-database)

  https://cmr-optimade.fysik.dtu.dk

  CMR is a collection of materials repositories from different projects such as C2DB, QPOD and many more

  Properties served by this database:

  By entry type (click to expand):
  • structures

    • The full list of standard OPTIMADE properties.

  Validation

  ValidationResults of validation Passed 11 / 14

  ❌ https://cmr-optimade.fysik.dtu.dk/v1/info/structures
  
  

  ValidationError: 15 validation errors for EntryInfoResponse
  data.properties.id
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'string', 'sort..., 'description': '...'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type
  data.properties.type
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'string', 'sort..., 'description': '...'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type
  data.properties.elements
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'list', 'sortab..., 'description': '...'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type
  data.properties.nelements
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'integer', 'sor..., 'description': '...'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type
  data.properties.chemical_formula_reduced
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'string', 'sort..., 'description': '...'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type
  data.properties.chemical_formula_hill
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'string', 'sort..., 'description': '...'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type
  data.properties.chemical_formula_anonymous
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'string', 'sort..., 'description': '...'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type
  data.properties.dimension_types
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'list', 'sortab..., 'description': '...'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type
  data.properties.nperiodic_dimensions
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'integer', 'sor..., 'description': '...'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type
  data.properties.lattice_vectors
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'list', 'sortab...': '...', 'unit': 'Å'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type
  data.properties.cartesian_site_positions
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'list', 'sortab...': '...', 'unit': 'Å'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type
  data.properties.nsites
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'integer', 'sor..., 'description': '...'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type
  data.properties.species
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'list', 'sortab..., 'description': '...'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type
  data.properties.species_at_sites
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'list', 'sortab..., 'description': '...'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type
  data.properties.structure_features
  Input should be a valid dictionary or instance of EntryInfoProperty [type=model_type, input_value=[{'type': 'list', 'sortab..., 'description': '...'}], input_type=list]
  For further information visit https://errors.pydantic.dev/2.11/v/model_type

  
  ❌ https://cmr-optimade.fysik.dtu.dk/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
  
  

  ValidationError: 8 validation errors for ValidatorStructureResponseMany
  data.0.id
  Input should be a valid string [type=string_type, input_value=0, input_type=int]
  For further information visit https://errors.pydantic.dev/2.11/v/string_type
  data.0.attributes.last_modified
  Input should be a valid datetime or date, invalid character in year [type=datetime_from_date_parsing, input_value='%Y-%m-%dT%H:%M:%SZ', input_type=str]
  For further information visit https://errors.pydantic.dev/2.11/v/datetime_from_date_parsing
  data.1.id
  Input should be a valid string [type=string_type, input_value=1, input_type=int]
  For further information visit https://errors.pydantic.dev/2.11/v/string_type
  data.1.attributes.last_modified
  Input should be a valid datetime or date, invalid character in year [type=datetime_from_date_parsing, input_value='%Y-%m-%dT%H:%M:%SZ', input_type=str]
  For further information visit https://errors.pydantic.dev/2.11/v/datetime_from_date_parsing
  data.2.id
  Input should be a valid string [type=string_type, input_value=2, input_type=int]
  For further information visit https://errors.pydantic.dev/2.11/v/string_type
  data.2.attributes.last_modified
  Input should be a valid datetime or date, invalid character in year [type=datetime_from_date_parsing, input_value='%Y-%m-%dT%H:%M:%SZ', input_type=str]
  For further information visit https://errors.pydantic.dev/2.11/v/datetime_from_date_parsing
  data.3.id
  Input should be a valid string [type=string_type, input_value=3, input_type=int]
  For further information visit https://errors.pydantic.dev/2.11/v/string_type
  data.3.attributes.last_modified
  Input should be a valid datetime or date, invalid character in year [type=datetime_from_date_parsing, input_value='%Y-%m-%dT%H:%M:%SZ', input_type=str]
  For further information visit https://errors.pydantic.dev/2.11/v/datetime_from_date_parsing

  
  ❌ https://cmr-optimade.fysik.dtu.dk/v1
  
  

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