https://bitcore.cc/
BitCore BTX was born as a response to the concerns of the Bitcoin community and has been growing and providing many more solutions to the community
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https://www.jsdelivr.com/package/npm/bitcore-wallet-service
A free, fast, and reliable CDN for bitcore-wallet-service. A service for Mutisig HD Bitcoin Wallets
bitcorewalletservicecdnjsdelivr