# Rate limits

Handle request limiting and Retry-After responses.

## Limits

The API limits requests by instance, IP address, key, project and room. Defaults are deployment settings, not guaranteed cloud quotas.

| Scope | Default requests per minute |
| --- | --- |
| API instance | 10,000 |
| Client IP | 600 |
| API key | 1,200 |
| Project | 3,000 |
| Room | 1,200 |

## Response

A limit returns HTTP `429`, `code: 'RATE_LIMITED'` and a `retry-after` header in seconds.

## Retry behavior

Wait for Retry-After before another request. The Node SDK retries eligible GET requests within the configured deadline. It does not automatically retry writes.

Do not poll runtime cleanup or usage endpoints in a tight loop.