Skip to main content
HTTP status: 503 · Title: “Service unavailable” · Retry-After: computed per response

​
When it fires

Trading through the API is temporarily unavailable. It is returned by POST /v1/trades and POST /v1/trades/{id}/confirm. Read endpoints (markets, quotes, portfolio, trade lookup) stay available throughout. Only trade writes are blocked.

​
How to fix

  • Honour Retry-After and back off. Polling faster will not restore it sooner.
  • Keep using the read endpoints, and show a “trading temporarily unavailable” message in your UI rather than failing silently.
  • The TypeScript SDK raises this as KashMaintenanceError.