About
What this is
A free screener for funding-rate spreads across perpetual futures venues, built by people who farm funding themselves. It shows where the same coin pays different funding, what a long/short pair would have earned after fees, and how steady that spread has been.
What it is not
- Not a trading tool: no wallet connection, no order placement, no custody of funds.
- Not a paid service: no subscriptions, no paid API, no premium tier.
- Not advice: we publish data and formulas, and you decide what to do with them.
How it is funded
Only through referral links to venues. When you open a new account through one, the venue may share part of your fees or points with us. This never changes how pairs are ranked.
Data
Funding rates, prices and open interest come from each venue's public API, read every few minutes. The method behind every number is described in the methodology.
Not investment advice
Everything on this site is general information. It is not investment, financial, legal or tax advice, and it is not a recommendation to buy or sell anything. Perpetual futures are leveraged products, and you can lose all the collateral you post.
The data comes from third-party venues and can be wrong, late or incomplete. Past funding does not predict future funding. The figures leave out costs and risks listed in the methodology. Check every number on the venue itself before you trade.
Whether you may use a venue depends on its terms and the law where you live. It is your responsibility to check both. We do not help anyone get around geographic restrictions.
Referral disclosure
Some links to venues are referral links, marked as such. If you open a new account through one, the venue may pay us a share of your trading fees or points. You do not pay more because of it, and some programs give you a fee discount or a points boost.
Referrals do not affect rankings. Every pair is scored by the same formulas, whether or not we have a referral link for its venues, and no venue pays for placement.
Free JSON API
Free to read, no key needed. Funding rates and prices come from the exchanges' public APIs and stay subject to each exchange's terms: we grant no licence to republish them. Please keep requests to a few per minute.
GET /api/pairs.json?hold=14&lev=3&min_oi=0&venues=hyperliquid,lighter&kind=all&tradfi=0&all=0
GET /api/coin/BTC.json
GET /api/venues.json
GET /api/spreads.json?min_bps=10&min_vol=100000&kind=all&tradfi=0