Mountable

■ Persistent POSIX filesystem for agent sandboxes

Persistent files
for AI agents.

Keep your agents’ files between sessions, even when their sandboxes are gone.

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One persistent filesystem, many agents and peopleCoding and research agents read and write shared files. A review agent and Sam’s Linux laptop have read-only access. Alex’s Mac uses the HTTPS API. Connections start and end at different times; src, memory.md and report.json remain in the filesystem after everyone disconnects.ONE FILESYSTEM. EVERY SESSION.Different workers. Same files.EPHEMERAL COMPUTEYOUR PEOPLEYOUR MACHINESCoding agentE2B · mountRW read + write● online○ offlineResearch agentDaytona · HTTPSRW read + write● online○ offlineReview agentCloud Run · HTTPSRO read only● online○ offlineAlex’s MacmacOS · HTTPSRW read + write● online○ offlineSam’s laptopLinux · mountRO read only● online○ offline/workspacePERSISTENTsrc/memory.mdreport.jsonFiles stay. Always.↔ READ + WRITE← READ ONLYCOMPUTE ≠ STORAGEOne persistent filesystem, many agents and peopleCoding and research agents read and write shared files. A review agent and Sam’s Linux laptop have read-only access. Alex’s Mac uses the HTTPS API. Connections start and end at different times; src, memory.md and report.json remain in the filesystem after everyone disconnects.Coding agentRW E2BReview agentRO Cloud RunAlex’s MacRW Mac / APISam’s laptopRO Linux/workspacesrc/memory.mdreport.jsonFiles stay. Always.
Workers disconnect.
Files don’t.

01 — Fits your workflow

Your tools.
The same files.

Save through an API or SDK. Work in a mounted folder. Connect your agents with MCP or the CLI.

However your workflow starts, your files end up in the same persistent filesystem.

Explore ways to connect →
Five ways to work with the same persistent filesAPI, mounted filesystem operations, MCP, CLI and SDK connect workflows to one shared filesystem. Activity from the different entry points saves files to the same persistent storage.MANY WAYS INOne place for every file.APIFilesystemMCPCLISDKYour filesbrief.pdfresearch.csvassets/Saved to Mountable5 ENTRY POINTSTHE SAME PERSISTENT FILES
Different tools. The same files.

02 — You set the limits

Build it into your app.
Keep costs in your hands.

Give your users persistent files as part of your product. Pay for the storage, downloads and file entries you use, with no subscription.

Set a monthly spending cap. Mountable reserves room for stored files and checks new usage against your budget before it starts.

See pricing and spending caps →
Persistent files inside your app, with a spending cap you controlAn app connects to Mountable for persistent files. An example monthly spending cap of 25 dollars keeps new usage within the reserved budget. The meter stops at the limit, while stored files remain.BUILT INTO YOUR PRODUCTYour app. Your budget.YOUR APPAn agent workspace.Files that stay with your users.MOUNTABLEPersistent filesStorage · downloads · entriesMONTHLY SPENDING CAP$25.00Your limitNew usage pauses at the cap.PAY PER USEEXAMPLE MONTHLY CAP
Persistent files. A budget you control.

03 — Use cases

One task. Many hands.
Same files.

Move work between runs, specialist agents and people. Your files stay in the workspace.

  • Coding sessions

    Resume your coding session.

    Keep the repo, notes and outputs. Start a fresh sandbox and carry on.

    Resume a coding sessionA previous sandbox disconnects and a fresh sandbox connects. The same repo, notes and outputs remain in the persistent workspace.Sandbox 01Previous runSandbox 02Fresh runworkspacerepo/notes.mdoutputs/
    Fresh sandbox. Same project.

  • Multi-agent work

    Research. Build. Review.

    Let specialists work from the same files. Give your reviewer read-only access.

    Research, build and review through shared filesA research agent writes sources, a builder uses them to produce a report, and a read-only reviewer reads that report from the same filesystem.ResearchRWBuilderRWReviewerROworkspacesources.csvreport.mdassets/
    One workspace. Every specialist.

  • You and your agents

    Jump in from your Linux laptop.

    Mount the workspace, review a draft and make your edits. Your agent takes it from there.

    Work alongside your agentsAn agent writes a shared draft. A person opens and edits it from their Linux laptop, then the agent continues with those changes.Your agentWrite · readLinux laptopReview · editdraft.md
    Review. Edit. Hand back.
See Mountable in action →

04 — Pricing

Pay for what you use

No plans and no subscriptions: three usage prices, billed from the first byte, and one invoice for the month before.

Mountable usage prices
UsageUSDEUR
StorageAverage stored bytes over the month$0.20per GiB-month€0.17per GiB-month
DownloadsBytes delivered by the gateway$0.02per GiB€0.017per GiB
File countAverage entries, directories included$0.50per million entries / month€0.425per million entries / month
  • Invoiced after each month ends and charged to your saved card. A payment method is required before your first filesystem.
  • Prices exclude taxes. Choose USD or EUR when you add a payment method.
  • 1 GiB = 1,073,741,824 bytes.
Full prices and billing terms →

05 — Docs

Start with the docs