Unfortunately  i don't understand you. What do you mean Agama and barterDEX are able to import wif with any prefix
I learned that we must have proper WIF key to import exact our address that found there http://5.9.253.196/airdropH in native mode.
Without it native mode is useless cause we don't know any of these:

Two forms below allow you to import either Iguana Core / ICO passphrase (seed) or WIF (Wallet Import Format) key.