TUNC.AI / Tunc Art

Your agents' private file sharing.

Reports, spreadsheets, PDFs, images, video and audio your agents make get a short private link. People you work with open them after signing in; anyone else needs a password you choose. Sign up free, create an API key and connect your agents, or use it through Tunc Hub.

Free: 1 GB, shared with Tunc Orb.

Tunc Art inside Tunc Hub.Read how it works

Connect your agents

Built into Tunc Hub. Open to every agent.

Use Tunc Art through Tunc Hub, or sign up and connect any agent with an API key. One Tunc account and one free 1 GB pool cover Tunc Orb, Tunc Art and Tunc Hub.

  • Tunc HubWhen the AI finishes a file, it shares it to Art and hands you the link. The original stays in your workspace.Built in
  • MCPLet any MCP-compatible AI app save and open your files.Sign in or API key
  • A2AAgent-to-agent access for agents running on other platforms.Sign in or API key
  • REST APIUpload, list and download files from scripts and your own software.With an API key

Locked doors, not secret links

You decide what leaves the workspace.

Knowing the link isn't enough. Every file stays private until you share it.

Viewing
Images, video, audio, PDFs and web pages (sandboxed, so scripts never run) open in the page; text, Markdown, JSON, CSV and code show as plain text. Word, Excel, PowerPoint, archives and other files show their name, type and size with a Download button.
Viewers
Every visit is checked. Viewers sign in with their Tunc account; a file opens for its owner and the people it is shared with.
Outside
Only the person who made a file can share it outside the account, with a password. The AI cannot turn this on.
Passwords
A password opens the file for 30 minutes at a time. Turning sharing off ends every unlocked session at once.
Previews
Active formats such as HTML open sandboxed, so a file can never act with your account's permissions.
Downloads
The exact bytes your agent saved, with resumable ranges for large files.
Links
Short private links open at tuncart.com and at art.tunchub.com.
Storage
1 GB free, shared with Tunc Orb across one Tunc account.

Questions

Asked often.

What is Tunc Art?
Tunc Art is your agents' private file sharing. Every file AI agents make (reports, spreadsheets, PDFs, decks, images, video and audio) gets a short private link. People open it after signing in; a link alone never grants access.
Who can open a Tunc Art link?
The owner and the people a file is shared with, after signing in with their Tunc account. Only the person who made a file can share it outside the account, with a password; an AI cannot turn this on.
How does an agent upload a file?
Over MCP at https://mcp.tuncart.com/mcp (files up to 8 MiB inline, larger ones up to 250 MiB with a presigned upload), over A2A at https://a2a.tuncart.com/v1, or with the REST API at https://api.tuncart.com/v1/files. Each upload returns the private link.
How do I get started?
Sign in at tunchub.com with Google, Apple, Microsoft or GitHub, name your organization and accept the Terms. Then create an API key, or let your agent sign in itself. It is free.
How much does Tunc Art cost?
Free to start: 1 GB of storage shared by Tunc Hub, Tunc Art and Tunc Orb, with reads and writes included (50,000 Tunc Orb operations a day). Add 10 GB for $4.99 a month (sold through Link in 82 countries).
Can I use Tunc Art outside the United States?
Yes. Sign-up and the free plan do not depend on your country. Paid storage is sold through Link in 82 countries; Link, Stripe’s payment service, handles payment and tax there.
How long are files kept?
Files uploaded through the API or MCP are kept 30 days on the free plan and 365 days with paid storage. When storage is full, the oldest files are removed to make room, and your account lists what was removed.
Which files open in the browser?
Images, video, audio, PDFs and web pages (sandboxed, so scripts never run) open in the page; text, Markdown, JSON, CSV and code show as plain text. Word, Excel, PowerPoint, archives and other files show their name, type and size with a Download button.

Start

Give every finished file a home.

Free: 1 GB, shared with Tunc Orb. Tunc Hub shares to Art for you.

See every Tunc product at tunc.ai.