X-RateLimit-Limit: 60
X-RateLimit-Remaining: 55
X-RateLimit-Reset: 1704067260

{
  "error": {
    "type": "rate_limit_exceeded",
    "message": "Too many requests. Please try again later.",
    "retry_after_seconds": 30
  }
}

async function makeRequestWithRetry(fn: () => Promise<any>, maxRetries = 3) {
  for (let i = 0; i < maxRetries; i++) {
    try {
      return await fn();
    } catch (error) {
      if (error.type === 'rate_limit_exceeded' && i < maxRetries - 1) {
        const delay = Math.pow(2, i) * 1000; // 1s, 2s, 4s
        await new Promise(resolve => setTimeout(resolve, delay));
        continue;
      }
      throw error;
    }
  }
}

curl https://api.assistantrouter.com/v1/limits \
  -H "Authorization: Bearer $API_KEY"

{
  "data": {
    "tier": "pro",
    "limits": {
      "requests_per_minute": 60,
      "tokens_per_day": 1000000,
      "assistants": 10,
      "api_keys": 5
    },
    "usage": {
      "requests_this_minute": 12,
      "tokens_today": 45000,
      "assistants": 3,
      "api_keys": 2
    }
  }
}