Needs Node.js 22 or newer.
curl -fsSL https://cli.getarbol.com/install.sh | sh
Or with npm: npm install --global https://cli.getarbol.com/arbol-1.20261012.22029.tgz (SHA-256 486362e2e69b15ce5a52e06eb7aeb57f6bd9444255b21b04d5c38650c1d6d50b).
arbol auth login --organization <your organization id> arbol catalog list arbol agenda appointments list --from 2026-10-12T00:00:00Z
Machines use an API key: arbol catalog list --auth api-key --api-key-stdin < key-file.