# DotnetToolResource.withToolSource

- Module: [Aspire.Hosting](/reference/api/typescript/aspire.hosting.md)
- Defined on: [DotnetToolResource](/reference/api/typescript/aspire.hosting/dotnettoolresource.md)
- Version: `13.4.0`
- Kind: `method`

Adds a NuGet package source for tool acquisition.

## Definition

```typescript
interface DotnetToolResource {
  // ... omitted for brevity
  withToolSource(source: string): DotnetToolResource;
}
```

## Signature

```typescript
withToolSource(source: string): DotnetToolResource
```

## Parameters

- `source` (`string`)

## Returns

[DotnetToolResource](/reference/api/typescript/aspire.hosting/dotnettoolresource.md) `builder`

## Defined on

- [DotnetToolResource](/reference/api/typescript/aspire.hosting/dotnettoolresource.md) -- `handle`