OPopenalex
Fields

Get a single field

Retrieve a single field by its ID.

get/fields/{id}

Request

  • Base URL
    https://api.openalex.org
  • URL
    https://api.openalex.org/fields/{id}
  • Auth
    API key in query parameter api_key

Path parameters

idstring required

Field ID (e.g., 27 for Medicine)

Query parameters

selectstring

Comma-separated list of fields to return. Reduces response size. Example: select=id,display_name,cited_by_count

api_keystring required

Your OpenAlex API key (required). Get a free key at https://openalex.org/settings/api

Response

Successful response

idstring

The OpenAlex ID for this field.

display_namestring

The English-language label of the field.

descriptionstring

A description of this field.

display_name_alternativesstring[]

Alternate names for this field.

works_countinteger

The number of works tagged with topics in this field.

cited_by_countinteger

Total citations to works in this field.

works_api_urlstring

A URL that returns all works tagged with this field.

created_datestring date

When this field was added to OpenAlex (ISO 8601 date).

updated_datestring date-time

When this field was last updated (ISO 8601 datetime).

Example response

{
  "id": "https://openalex.org/fields/27"
}

Changes

No recorded changes to this operation across all 6 revisions of this API.