# AspireDtoAttribute Constructors

- Package: [Aspire.Hosting](/reference/api/csharp/aspire.hosting.md)
- Type: [AspireDtoAttribute](/reference/api/csharp/aspire.hosting/aspiredtoattribute.md)
- Kind: `Constructors`
- Members: `1`

Marks a class as an ATS (Aspire Type System) Data Transfer Object. DTOs are serializable types used to pass structured data to capabilities.

## AspireDtoAttribute

- Name: `Constructor`

```csharp
public sealed class AspireDtoAttribute
{
    public AspireDtoAttribute()
    {
        // ...
    }
}
```