> ## 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 |