get-a-single-topic.md

Get a single topic

It's easy to get a topic from the API with: /topics/<entity_id>. Here's an example:

• Get the topic with the OpenAlex ID C71924100:
  https://api.openalex.org/topics/T11636

That will return a Topic object, describing everything OpenAlex knows about the topic with that ID:

{
    "id": "https://openalex.org/T11636",
    "display_name": "Artificial Intelligence in Medicine",
    // other fields removed for brevity
}

{% hint style="info" %} You can make up to 50 of these queries at once by requesting a list of entities and filtering on IDs using OR syntax. {% endhint %}

Select fields

You can use select to limit the fields that are returned in a topic object. More details are here.

• Display only the id and display_name for a topic object
  https://api.openalex.org/topics/T11636?select=id,display\_name