list: API endpoint for returning a list of creatures types.
retrieve: API endpoint for returning a particular creature type.

GET /v2/creaturetypes/aberration/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "https://api-beta.open5e.com/v2/creaturetypes/aberration/?format=api",
    "key": "aberration",
    "name": "Aberration",
    "desc": "Aberrations are utterly alien beings. Many of them have innate magical abilities drawn from the creature’s alien mind rather than the mystical forces of the world. The quintessential aberrations are aboleths, beholders, mind flayers, and slaadi.",
    "document": "https://api-beta.open5e.com/v2/documents/srd-2014/?format=api"
}