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

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

{
    "url": "https://api-beta.open5e.com/v2/creaturetypes/fiend/?format=api",
    "key": "fiend",
    "descriptions": [
        {
            "desc": "Fiends are evil-aligned creatures from Hell, the Abyss, and other cursed realms. Most fiends are demons and devils, each of which have their own subtypes and hierarchies. Some fiends, such as hell hounds, are neither demons nor devils.",
            "document": "a5e-mm",
            "gamesystem": "a5e"
        },
        {
            "desc": "Fiends are creatures of wickedness that are native to the Lower Planes. A few are the servants of deities, but many more labor under the leadership of archdevils and demon princes. Evil priests and mages sometimes summon fiends to the material world to do their bidding. If an evil celestial is a rarity, a good fiend is almost inconceivable. Fiends include demons, devils, hell hounds, rakshasas, and yugoloths.",
            "document": "srd-2014",
            "gamesystem": "5e-2014"
        },
        {
            "desc": "Fiends are creatures tied to terrifying Lower Planes, such as balors and hell hounds.",
            "document": "srd-2024",
            "gamesystem": "5e-2024"
        }
    ],
    "name": "Fiend",
    "document": "https://api-beta.open5e.com/v2/documents/core/?format=api"
}