Rate limits

There are no published rate limits today, and none are enforced. You will not receive a 429.

That is a statement about where the platform is, not a guarantee. Limits will arrive, and they will be announced in the changelog before they are enforced. Build as though they exist:

• Keep a single socket connection per process rather than polling REST for data the order book channel already pushes you
• Batch cancels with DELETE /api/v1/orders/batched instead of one call per order
• Give your HTTP client a retry with backoff, and treat 429 as retryable even though nothing returns it yet

If your integration needs a specific rate ceiling agreed in advance, raise it with STX before you go live rather than discovering it in production.