> ## Documentation Index
> Fetch the complete documentation index at: https://help.cryptolens.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Media Types

> By default, Cryptolens Web API returns JSON formatted objects. The the most basic result always contains a message and a result. In rare cases, only a message is returned, in which case a server error has...

By default, Cryptolens Web API returns JSON formatted objects. The the most basic result always contains a **message** and a **result**. In rare cases,
only a message is returned, in which case a server error has occured.

### Message Pack

All controllers support MessagePack format. It can be requested by setting the content type to **application/x-msgpack**.

### Plain Text

In some methods, it is also possible to get the result as plain text. At the time of writing, only the [Create Key](/api-reference/generated/CreateKey) method supports this type fully.
You can request plain text by either:

1. setting content type to **text/plain**
2. setting query string paramter **format** to **plaintext**