[**@jupyterlite**](../../../README.md)

***

[@jupyterlite](../../../README.md) / [@jupyterlite/kernel](../README.md) / IKernelSpecs

# Interface: IKernelSpecs

Defined in: packages/services/lib/kernel/tokens.d.ts:102

The interface for the kernel specs service.

## Properties

### changed

> `readonly` **changed**: `ISignal`\<`IKernelSpecs`, `null` \| `ISpecModels`\>

Defined in: packages/services/lib/kernel/tokens.d.ts:122

Signal emitted when the specs change.

***

### defaultKernelName

> `readonly` **defaultKernelName**: `string`

Defined in: packages/services/lib/kernel/tokens.d.ts:114

Get the default kernel name.

***

### factories

> `readonly` **factories**: [`KernelFactories`](../namespaces/KernelSpecs/type-aliases/KernelFactories.md)

Defined in: packages/services/lib/kernel/tokens.d.ts:118

Get the kernel factories for the current kernels.

***

### register()

> **register**: (`options`) => `void`

Defined in: packages/services/lib/kernel/tokens.d.ts:128

Register a new kernel spec

#### Parameters

##### options

[`IKernelOptions`](../namespaces/KernelSpecs/interfaces/IKernelOptions.md)

The kernel spec options.

#### Returns

`void`

***

### specs

> `readonly` **specs**: `null` \| `ISpecModels`

Defined in: packages/services/lib/kernel/tokens.d.ts:110

Get the kernel specs.