swingby-js-sdk Package not found

[gabkk]

Platform

Os : Catalina 10.15.4
node: 12.16.1
npm: 6.13.4
yarn: 1.22.0

npm install swingby-js-sdk
npm ERR! code E404
npm ERR! 404 Not Found - GET https://registry.npmjs.org/swingby-js-sdk - Not found
npm ERR! 404
npm ERR! 404  'swingby-js-sdk@latest' is not in the npm registry.
npm ERR! 404 You should bug the author to publish it (or use the name yourself!)
npm ERR! 404
npm ERR! 404 Note that you can also install from a
npm ERR! 404 tarball, folder, http url, or git url

Same issue on linux i tried with node version 14 same issue