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A free fee-comparison widget for your site

Live maker/taker perp fees across OKX, Binance, Bitget and MEXC, with the date each rate was read on the face of it. One script tag, no signup, no build step. Free to embed on any page.

Live demo

This is the exact widget, running on this page right now — nothing staged.

Embed it

Paste this one line anywhere in your page's HTML. The widget renders itself right where the tag sits — no container element, no configuration, no build step.

<script src="https://returnfee.com/assets/widgets/fee-widget.js" async></script>

What it does and doesn't do

  • Isolated. The widget renders inside a Shadow DOM, so its CSS cannot leak onto your page and your page's CSS cannot reach in. It defines exactly one global, window.ReturnFeeWidget, purely as a re-entry guard.
  • Fails silently. If a live data fetch is blocked or unreachable, it falls back to its own last-known snapshot rather than breaking or showing an error on your page.
  • Dated on its face. Every row shows the date that rate was read, because whoever embeds this is putting their own reputation on our numbers.
  • No tracking beyond the file request itself. No cookies, no analytics calls, no fingerprinting — just the ordinary server log entry that serving any file causes.
  • Shows exchange fees, not our offer. This widget states what each exchange itself charges. It does not state or imply any ReturnFee rebate rate — for that, see the rebate program separately.

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