> For the complete documentation index, see [llms.txt](https://calcom.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://calcom.gitbook.io/docs/enterprise-features/api/types.md).

# Types

The following is a list of the types of data used within the Cal.com API:

<table><thead><tr><th width="239.33333333333331">Name</th><th>Definition</th><th>Example</th></tr></thead><tbody><tr><td>ID</td><td>A unique value used to identify resources.</td><td>"V0fra8eEgQwEpFhYG2vTzC3K"</td></tr><tr><td>Numeric ID</td><td>A unique integer number used to identify resources.</td><td>7</td></tr><tr><td>String</td><td>A string is a sequence of characters used to represent text.</td><td>"value"</td></tr><tr><td>Integer</td><td>An integer is a number without decimals.</td><td>1234</td></tr><tr><td>Float</td><td>A float is a number with decimals.</td><td>12.34</td></tr><tr><td>Map</td><td>A data structure with a list of values assigned to a unique key.</td><td>{ "key": "value" }</td></tr><tr><td>List</td><td>A data structure with only a list of values separated by a comma.</td><td>["value", 1234, 12.34]</td></tr><tr><td>Enum</td><td>An Enum is a String with only a few possible valid values.</td><td>A | B</td></tr><tr><td>Date</td><td>An Integer representing a date in milliseconds since the UNIX epoch.</td><td>1540095775941</td></tr><tr><td>Boolean</td><td>A Boolean is a type of two possible values representing true or false.</td><td>true</td></tr></tbody></table>