> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fiddler.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# FiddlerClientConfig

> Configuration for FiddlerClient.

Configuration for FiddlerClient.

## Properties

### `apiKey: string`

Fiddler API key or personal access token.

### `applicationId: string`

UUID of the Fiddler GenAI application to send traces to.

### `consoleTracer?: boolean`

When `true`, also print spans to the console for local debugging.

### `serviceName?: string`

OTel service name (defaults to `"fiddler-otel"`).

### `serviceVersion?: string`

OTel service version (defaults to `"0.1.0"`).

### `url: string`

Base URL of the Fiddler instance (e.g. `"https://app.fiddler.ai"`).