Fee widget and JSON
One live fee for your page, no script and no cookie — or every chain's figures as JSON.
Widget
Parameters: chain (a chain’s page name, e.g. ethereum, tron, bnb-chain), kind (native, usdt, usdc), theme=dark optional.
<iframe src="https://cryptofeecalculator.xyz/embed/widget?chain=tron&kind=usdt" width="320" height="150" style="border:0;border-radius:12px" loading="lazy" title="USDT fee on Tron"></iframe>JSON
GET https://cryptofeecalculator.xyz/api/fees returns every chain’s current network fee per transfer kind, in the chain’s coin and in USD, with the formula. Up to 120 requests a minute per address; please cache.
The figures are the same cached readings the site shows. A chain without a reading is missing from the answer.