# GrainServicesSiloBuilderExtensions Methods

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.hosting.grainservicessilobuilderextensions/)

## AddGrainService(IServiceCollection, Type) {#addgrainservice-this-microsoft-extensions-dependencyinjection-iservicecollection-f478bfff}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.hosting.grainservicessilobuilderextensions/methods/addgrainservice-this-microsoft-extensions-dependencyinjection-iservicecollection-f478bfff/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Runtime/Services/GrainServicesSiloBuilderExtensions.cs#L61)

```csharp
public static IServiceCollection AddGrainService(this IServiceCollection services, Type grainServiceType)
```

Registers an application grain service to be started with the silo.

### Parameters

- `services` (`IServiceCollection`): The service collection.
- `grainServiceType` (`Type`): The grain service implementation type.

### Returns

The service collection.

## AddGrainService(IServiceCollection) {#addgrainservice-1-this-microsoft-extensions-dependencyinjection-iservicecollecti-f96a5de7}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.hosting.grainservicessilobuilderextensions/methods/addgrainservice-1-this-microsoft-extensions-dependencyinjection-iservicecollecti-f96a5de7/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Runtime/Services/GrainServicesSiloBuilderExtensions.cs#L50)

```csharp
public static IServiceCollection AddGrainService<T>(this IServiceCollection services)
```

Registers an application grain service to be started with the silo.

### Parameters

- `services` (`IServiceCollection`): The service collection.

### Returns

The service collection.

## AddGrainService(ISiloBuilder) {#addgrainservice-1-this-orleans-hosting-isilobuilder-cad7e9ba}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.hosting.grainservicessilobuilderextensions/methods/addgrainservice-1-this-orleans-hosting-isilobuilder-cad7e9ba/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Runtime/Services/GrainServicesSiloBuilderExtensions.cs#L25)

```csharp
public static ISiloBuilder AddGrainService<T>(this ISiloBuilder builder)
```

Registers an application grain service to be started with the silo.

### Parameters

- `builder` (`ISiloBuilder`): The builder.

### Returns

The silo builder.