Bip39 api https://devinzryy552.trexgame.net/comprehending-bip32-vs-bip39-which-one-should-you-make-use-of Even though it works by using BIP32 system you'll be able to still import BIP39 seeds into Electrum wallet. Also other than BIp32 There exists BIP44 Variation which some wallet use with the era of seeds. For words that have only three letters, there isn't a 4th https://bookmarkproduct.com/story20233723/bip32-and-bip39-a-secret-weapon-for-bip39-mnemonic-https-x-com-tundra838554