# Data Types
<a name="API_Types"></a>

The EBS direct APIs API contains several data types that various actions use. This section describes each data type in detail.

**Note**  
The order of each element in a data type structure is not guaranteed. Applications should not assume a particular order.

The following data types are supported:
+  [Block](API_Block.md) 
+  [ChangedBlock](API_ChangedBlock.md) 
+  [Tag](API_Tag.md)