API v1 is deprecated and will be turned off on January 1, 2022. Check out the API v2 documentation.

This API provides information about your account (API Key).

Get account information

GET https://api.cloudconvert.com/v1/user
Authorization: Bearer API_KEY
    "minutes": 250,
    "user": "your_username",

The output key shows up all registered output storages which can be used using the conversion API.