Bip39 api https://ameblo.jp/generate-bip39brooks/entry-12913353546.html Though it employs BIP32 process you could however import BIP39 seeds into Electrum wallet. Also other than BIp32 There exists BIP44 Variation which some wallet use for the generation of seeds. Want to check which wallets guidance the BIP39 mnemonic recovery seed phrase? Go through the posting https://tripsbookmarks.com/story19920516/bip39-binary-the-single-best-strategy-to-use-for-bip39-word-list-pdf-https-www-youtube-com-channel-ucupxfytj0fb78sq55hu6ocw