# GrainManifest.Interfaces

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.metadata.grainmanifest/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.metadata.grainmanifest/properties/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core.Abstractions/Manifest/GrainManifest.cs#L49)

```csharp
[Orleans.Id(0)]
public ImmutableDictionary<GrainInterfaceType, GrainInterfaceProperties> Interfaces
```

Gets the interfaces available on this silo.