PerpBuilt for a smaller, repeatable check
PerpFox is an independent market-data site for people checking the carrying cost of a perpetual position. The recurring task is modest: identify the contract, read the available rate, check when it was observed and look for actual settlements before attaching an amount to it.
The core workbench covers BTC, ETH and SOL USDT linear perpetuals. A separate view follows 20 selected Binance USDT spot pairs. It adds price context without presenting spot moves as funding or liquidation data.
Why Binance is shown first
The site has a Binance referral relationship and uses invitation code BN8812. Binance appears first by design; that ordering is not a claim that its fees or execution are better. A missing Binance field remains visible as missing, and the existing OKX records remain available for their supported uses.
PerpFox is not Binance or OKX, does not operate either exchange, and is not a trading venue. We may receive commission through the disclosed invitation link. See how that relationship is presented.
What we have not established
We do not publish invented trading records, a claimed professional biography, user counts or investment results. We have not established the missing Binance settlement fields through the current provider. Viewing this site does not establish your eligibility to trade on any exchange.
The English edition is written around its own reading tasks and examples. It shares the calculations and data rules with the Chinese workbench. To challenge a number or explanation, use Corrections; for other enquiries, contact the site.