One sign-in for every Mostly Tiny product. Authorize once; your CLI, MCP, and agents are authenticated across the whole portfolio — no per-product API keys.
From an agent or terminal:
npx mostlytiny login
That opens a browser to approve the device, then stores a token your MCP and the Claude/Codex plugins read automatically.
Authorizing a device? You'll land on /device from the link in your terminal.