Crypto perp exchanges charge a funding rate every 8 hours. When rates diverge across exchanges you can go long on the low-rate side and short on the high-rate side delta neutral, collecting the spread. HOW IT WORKS • Fetches live funding rates from all 3 exchanges • Calculates: (rate_high - rate_low) × 1095 - 3% fee drag • Classifies: LOW (5-10%), MEDIUM (10-20%), HIGH (20%+) • Alerts fire the moment a spread crosses your threshold
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Maker
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Maker comment (post within the first hour):
Hey PH! I'm Matt.
I built this because I kept manually checking funding rates across three exchanges
and missing the window before spreads closed. The whole scanner runs on public
endpoints — no API keys, no OAuth, just math on public data.
The core formula is simple: annualise the 8h spread, subtract 3% for roundtrip
fees, anything left is real yield. A 20%+ annualised spread on a delta-neutral
position is genuinely actionable.
Free tier is actually useful — BTC/ETH/SOL covers most of the real opportunities.
Pro is for people tracking the long tail.
Bot is live now: t.me/srfm_alerts_bot
Happy to answer any questions about the strategy mechanics or the implementation.
Tags to select: Fintech, Crypto, Bots, Trading, Productivity