OPopenalex
Topics

Get a single topic

Retrieve a single topic by OpenAlex ID.

get/topics/{id}

Request

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

Path parameters

idstring required

OpenAlex ID (e.g., T12419)

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 topic.

display_namestring

The English-language label of the topic.

descriptionstring

A description of this topic, generated by AI.

keywordsstring[]

Keywords representing the content of papers in the topic.

works_countinteger

The number of works tagged with this topic.

cited_by_countinteger
works_api_urlstring
created_datestring date
updated_datestring date-time

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

Example response

{
  "id": "https://openalex.org/T12419"
}

Changes

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