# Token Usage

Compact token counter showing prompt and completion usage with optional cost estimate; also exports ContextMeter for visualising context window fill



<ComponentPreview base="opentui" name="token-usage-demo" />

Installation [#installation]

<CodeTabs>
  <TabsList>
    <TabsTrigger value="cli">
      Command
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    <TabsTrigger value="manual">
      Manual
    </TabsTrigger>
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  <TabsContent value="cli">
    ```bash
    npx shadcn@latest add @termcn/opentui-token-usage
    ```
  </TabsContent>

  <TabsContent value="manual">
    <Steps>
      <Step>
        Copy and paste the following code into your project.
      </Step>

      <ComponentSource base="opentui" name="token-usage" title="components/ui/token-usage.tsx" />

      <Step>
        Update the import paths to match your project setup.
      </Step>
    </Steps>
  </TabsContent>
</CodeTabs>

Usage [#usage]

```tsx
import { TokenUsage, ContextMeter } from "@/components/ui/token-usage";
```

```tsx
<TokenUsage prompt={2450} completion={890} model="gpt-4o" showCost />
```

API Reference [#api-reference]

TokenUsage [#tokenusage]

| Prop         | Type      | Default    |
| ------------ | --------- | ---------- |
| `prompt`     | `number`  | `required` |
| `completion` | `number`  | `required` |
| `model`      | `string`  | -          |
| `showCost`   | `boolean` | `false`    |

ContextMeter [#contextmeter]

| Prop          | Type      | Default    |
| ------------- | --------- | ---------- |
| `used`        | `number`  | `required` |
| `limit`       | `number`  | `required` |
| `label`       | `string`  | -          |
| `showPercent` | `boolean` | `true`     |
| `warnAt`      | `number`  | `75`       |
| `criticalAt`  | `number`  | `90`       |
| `width`       | `number`  | `20`       |