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Live from the venues' public APIs every 2 minutes while this tab is open · stored in this browser only · snapshot reference Tue, 20 Oct 2026 23:07:10 UTC

Star tokens anywhere on the site, or add them here. Alerts fire as browser notifications while this page is open (background tabs included). The same flips and crossings are posted to Telegram @perpyscom.

Alert on sign flip

longs ↔ shorts

when the hourly rate changes sign on any listed venue

Alert when |APR| crosses

annualised, per venue, first time above the level

Notifications

browser permission; nothing leaves your device

Nothing here yet. Try BTC, HYPE or the arbitrage table and tap ☆.

Alert log

Alerts you receive while this page is open appear here, newest first (kept in this browser).

How it works

Rates come straight from api.hyperliquid.xyz, mainnet.zklighter.elliot.ai and fapi.asterdex.com in your browser; Perpys servers are not involved after the page loads.
A sign flip compares the current hourly rate with the last one this browser saw; readings within ±0.016% per 8h of zero count as flat.
Threshold alerts fire once when |APR| first goes above the level and again only after it has dropped below.
Close the tab and alerts stop. For always-on alerts use the Telegram channel when it opens; the changes page shows what you missed.