> ## Documentation Index
> Fetch the complete documentation index at: https://docs.in10nt.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Usage & Billing

> Track token usage and costs

## Get Usage

```typescript theme={null}
const client = new In10ntClient();
const usage = await client.usage.getTokenUsage();

console.log(`Monthly: ${usage.monthlyTokens} tokens, $${usage.monthlyCost}`);
console.log(`Total: ${usage.totalTokens} tokens, $${usage.totalCost}`);
```

### Response

```typescript theme={null}
{
  monthlyTokens: 1250000,
  monthlyCost: 15.75,
  totalTokens: 5000000,
  totalCost: 63.00,
  lastUsage: "2025-01-06T..."
}
```

## Per-Task Usage

```typescript theme={null}
const result = await instance.run('Build a REST API');

console.log(`Tokens: ${result.tokensUsed}`);
console.log(`Duration: ${result.duration_ms}ms`);
```

## Monitor Usage

```typescript theme={null}
const instance = await Instance.create({
  name: 'tracker',
  description: 'Task tracker'
});

let sessionTokens = 0;

const r1 = await instance.run('Task 1');
sessionTokens += r1.tokensUsed;

const r2 = await instance.run('Task 2');
sessionTokens += r2.tokensUsed;

console.log(`Session: ${sessionTokens} tokens`);

// Check monthly
const client = new In10ntClient();
const usage = await client.usage.getTokenUsage();
console.log(`Monthly: ${usage.monthlyTokens} tokens`);
```

## HTTP API Reference

### Get Token Usage

```bash theme={null}
curl -H "Authorization: Bearer YOUR_API_KEY" \
  https://in10t-api-v2.fly.dev/usage/tokens
```