Skip to main content
Fields are the second level of the OpenAlex topic hierarchy. There are 26 fields spread across 4 domains. Each field contains multiple subfields. The topic hierarchy is: Domain → Field → Subfield → Topic

​
All 26 fields

IDNameDomain
11Agricultural and Biological SciencesLife Sciences
12Arts and HumanitiesSocial Sciences
13Biochemistry, Genetics and Molecular BiologyLife Sciences
14Business, Management and AccountingSocial Sciences
15Chemical EngineeringPhysical Sciences
16ChemistryPhysical Sciences
17Computer SciencePhysical Sciences
18Decision SciencesSocial Sciences
19Earth and Planetary SciencesPhysical Sciences
20Economics, Econometrics and FinanceSocial Sciences
21EnergyPhysical Sciences
22EngineeringPhysical Sciences
23Environmental SciencePhysical Sciences
24Immunology and MicrobiologyLife Sciences
25Materials SciencePhysical Sciences
26MathematicsPhysical Sciences
27MedicineHealth Sciences
28NeuroscienceLife Sciences
29NursingHealth Sciences
30Pharmacology, Toxicology and PharmaceuticsLife Sciences
31Physics and AstronomyPhysical Sciences
32PsychologySocial Sciences
33Social SciencesSocial Sciences
34VeterinaryHealth Sciences
35DentistryHealth Sciences
36Health ProfessionsHealth Sciences

​
Filter, sort, and group_by fields

The API supports filtering, sorting, and grouping on fields fields. See Filtering, Sorting, and Grouping for syntax. Fields marked (deprecated) are .search filters — use the search parameter instead.
FieldSortGroup_byFilter
cited_by_count✓✓✓
default.search (deprecated)✓
display_name✓✓
display_name.search (deprecated)✓
domain.id✓✓✓
from_created_date✓✓
id✓✓✓
subfields.id✓✓✓
works_count✓✓✓