@okxweb3/coin-bitcoin

@okxweb3/coin-bitcoin is a Bitcoin SDK for building Web3 wallets and applications. It supports BTC, BSV, DOGE, LTC, and TBTC, enabling private key management, transaction signing, address generation, and inscriptions like BRC-20, Runes, CAT, and Atomicals

@kimafinance/btc-signer

Audited & minimal library for creating, signing & decoding Bitcoin transactions: with Schnorr, Taproot, UTXO & PSBT