New: Seoul Endpoint for Upbit Announcements

April 30, 2026

We're adding a second endpoint dedicated to Upbit announcements.

The new endpoint

"wss://kr.cryptolisting.ws"   # AWS Seoul (ap-northeast-2c — apne2-az3) — Upbit only

Same API key as the Tokyo endpoint. Same message schema. The Seoul endpoint streams Upbit announcements only, so the ?cex=upbit filter is optional there.

Rate limits and connection caps are per-endpoint

Each region tracks its own rate-limit and connection budget. Connections, message rates, IP caps, and cooldowns on Tokyo do not count against Seoul, and vice-versa.

A key with a 5-connection-per-IP cap can hold 5 on Tokyo and 5 on Seoul (10 total). A cooldown on Tokyo does not gate Seoul. Full numbers per tier are in the rate-limits reference.