# CapabilityHostBuilder Properties

- Package: [Aspire.Hosting.Foundry](/reference/api/csharp/aspire.hosting.foundry.md)
- Type: [CapabilityHostBuilder](/reference/api/csharp/aspire.hosting.foundry/capabilityhostbuilder.md)
- Kind: `Properties`
- Members: `1`

A fluent builder for configuring a capability host on a Microsoft Foundry project.

## ProjectBuilder

- Name: `ProjectBuilder`
- Modifiers: `get`
- Returns: `IResourceBuilder<AzureCognitiveServicesProjectResource>`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/becb48e2d61099e35ae336d527d3875e928d6594/src/Aspire.Hosting.Foundry/Project/ProjectResource.cs#L359)

Gets the underlying project resource builder.

```csharp
public IResourceBuilder<AzureCognitiveServicesProjectResource> ProjectBuilder { get; }
```