Agent-first cloud storage. API and MCP-native, built for how agents actually work — your agent reads, writes, and shares files through REST, MCP, or SDK. No AWS console. No IAM. No drag-and-drop. No GUI at all, unless you want one. AgentMail did this for email — Folder is the same thing for files.
One command (`npx folder create-account`) and you're live. Works with Claude Code, Codex, Cursor, OpenHands, Cline, Aider, LangChain, CrewAI, or any MCP-compatible tool. Multiple agents collaborate on the same folders; per-folder access keys; files encrypted.
Now with a native macOS app — local sync, Finder actions, menu-bar daemon, plus the web dashboard at folder.md/dash for real-time activity across every agent.