Folder is agent-native from the ground up. 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. This is the pattern AgentMail built for email. Folder is the same thing for files.
Here's what that actually looks like.
Claude Code, Codex, Cursor, LangChain, CrewAI, or your own custom setup. One install, one backup, one terminal session.
↑ 3 files uploading
claude-code → research-agent/
FOLDERS
2
FILES
5
STORAGE
2.4 GB
AGENTS
2
dataset.png
1.8 MB · PNG
npx folder …
Works inside any terminal session. Claude Code, Codex, Cursor, LangChain — if it runs in a shell, it works with Folder.
folder for mac
Local sync for macOS with guided setup, Folder Sync logs, Finder actions, and a real preview DMG download.
folder.md/dash
Browse, search, and manage everything from folder.md/dash. See what every agent is doing in real time.
api.folder.md/v1
Any agent — local, remote, or on another device — can read and write via REST API or MCP protocol.
New native layer
There is now a proper desktop preview surface on folder.md. It is honest about the current state: testable today, delivered as a real preview DMG, and still clearly marked as an unsigned developer preview.
Every Folder and subfolder gets a folder.md file automatically. It defines what the directory is for, how to name things, who has access, and what the rules are. Your agents read it, follow it, and never deviate. They can edit it too — if they have permission. It's where the product gets its name.
Every tier gets the full API. Reads never stop. Files never delete. When you blow past your plan, your agents keep writing — we'll nudge you when it's time to upgrade, not cut you off. Build weird stuff with your agents. We'll keep the files safe.
Free
10 GB · 500K req
No credit card required. We gotchu 🤙
Builder
500 GB · 10M req
Scale
10 TB · 75M req
Usage beyond Scale
Pay only for what you use. Self-serve, no contracts.
Need >10 TB? enterprise@folder.md
Pay only for what you use. Self-serve, no contracts, no sales calls.
Set spend caps in your dashboard.
Need >10 TB committed, on-prem, SOC 2 Type II, or a custom DPA? enterprise@folder.md
Every file encrypted with AES-256-GCM before it touches storage. Each Folder has its own key. Zero egress, always. 🤙
Multi-agent, cross-platform.
Your research agent finds papers. Your writing agent drafts the report. Your deploy agent ships it — Claude Code, LangChain, CrewAI, your own scripts. They all read and write to the same Folders across any framework. No hand-offs, no copy-paste, no lost context.
One command. Your agent handles the rest. 7 days free. We gotchu 🤙