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

# ActivityItem

## Example Usage

```typescript theme={null}
import { ActivityItem } from "@openrouter/sdk/models";

let value: ActivityItem = {
  byokUsageInference: 0.012,
  completionTokens: 125,
  date: "2025-08-24",
  endpointId: "550e8400-e29b-41d4-a716-446655440000",
  model: "openai/gpt-4.1",
  modelPermaslug: "openai/gpt-4.1-2025-04-14",
  promptTokens: 50,
  providerName: "OpenAI",
  reasoningTokens: 25,
  requests: 5,
  usage: 0.015,
};
```

## Fields

| Field | Type | Required | Description | Example |
| - | - | - | - | - |
| `byokUsageInference` | *number* | :heavy\_check\_mark: | BYOK inference cost in USD (external credits spent) | 0.012 |
| `completionTokens` | *number* | :heavy\_check\_mark: | Total completion tokens generated | 125 |
| `date` | *string* | :heavy\_check\_mark: | Date of the activity (YYYY-MM-DD format) | 2025-08-24 |
| `endpointId` | *string* | :heavy\_check\_mark: | Unique identifier for the endpoint | 550e8400-e29b-41d4-a716-446655440000 |
| `model` | *string* | :heavy\_check\_mark: | Model slug (e.g., "openai/gpt-4.1") | openai/gpt-4.1 |
| `modelPermaslug` | *string* | :heavy\_check\_mark: | Model permaslug (e.g., "openai/gpt-4.1-2025-04-14") | openai/gpt-4.1-2025-04-14 |
| `promptTokens` | *number* | :heavy\_check\_mark: | Total prompt tokens used | 50 |
| `providerName` | *string* | :heavy\_check\_mark: | Name of the provider serving this endpoint | OpenAI |
| `reasoningTokens` | *number* | :heavy\_check\_mark: | Total reasoning tokens used | 25 |
| `requests` | *number* | :heavy\_check\_mark: | Number of requests made | 5 |
| `usage` | *number* | :heavy\_check\_mark: | Total cost in USD (OpenRouter credits spent) | 0.015 |
| `workspaceId` | *string* | :heavy\_minus\_sign: | ID of the workspace this activity is attributed to. Only present when `group_by=workspace` is passed; the response is then split per workspace. Activity recorded before workspace resolution existed is attributed to the account default workspace. | 550e8400-e29b-41d4-a716-446655440000 |