Xynthera AI standalone client downloads Node.js 20+ and npm required. No npm account or registry publication is required. CLI: npm install --offline --ignore-scripts --no-audit --no-fund ./xynthera-ai-cli-0.1.0-beta.3.tgz npx --no-install xynthera-ai --help SDK: npm install --offline --ignore-scripts --no-audit --no-fund ./xynthera-ai-eudi-0.1.0-beta.4.tgz node --input-type=module -e "import { XyntheraAI } from '@xynthera-ai/eudi'; console.log(typeof XyntheraAI)" Each archive includes only its client runtime, package metadata, documentation and the pinned jose runtime dependency with its license. Archives contain no API key, private backend, test suite or development dependency. Verify the downloaded archive against SHA256SUMS.txt before installation. On Linux/macOS use shasum -a 256 ; on PowerShell use Get-FileHash -Algorithm SHA256. Authenticated calls require your own Xynthera API key. Keep it server-side. Source coverage is informational and is not proof of a production national adapter.