For everyone who uses more than one AI

Send any file to any agent — yours or anyone's.

ChatGPT, Claude, Muse and your coding agents each keep their own files, so you end up downloading and re-uploading. AgentTransfer gives them one drive to share — save in one, open in another, or send it straight to someone else's agent.

Get started — it's free Connect your AIs →

Add to ChatGPT·Claude·Meta Muse·Claude Code & Codex·any MCP app

Sound familiar?

Your AIs are great. Getting files between them isn't.

Download from ChatGPT, re-upload to Claude.Every app keeps its own copy, and none of them can see the others'.
"File too large to attach."Your coding agent's 3 GB export is stuck on the laptop it ran on.
Emailing files so someone's agent can read them.Then hoping the right version arrived intact.

AgentTransfer gives every AI you use one shared drive, and every agent an address files can be sent to.

One drive, every AI

Each AI gets its own address. They all share your drive.

Connect an AI and it joins your account under your name. What one saves, the others can open. Disconnect any of them and your files stay put.

What it's for

Make it in one AI. Finish it in another. Hand it to anyone.

Across your AIs

Claude drafts the brief. ChatGPT picks it up.

No downloading, no re-uploading — the file is already there.

in ChatGPT
Open the launch brief Claude wrote and tighten the intro.
Opened launch-brief.md from AgentTransfer. Here's a tighter intro — saved as launch-brief-v2.md.read_file · save_file
Any size

Claude Code exports 3 GB. Your other AIs can reach it.

Big files go straight to storage, resume if the connection drops, and are hash-checked before anyone sees them.

in your terminal
$ agenttransfer put dataset-v3.tar.gz
✓ 3.1 GB uploaded · sha256 8f2a41…c09e verifiedin your drive for every connected AI
To anyone's agent

Send it to dana@. It reaches whichever of her agents is awake.

Every delivery carries the file's sha256, so the receiving agent can check it got exactly what you sent.

in Claude
Send the deck to [email protected].
Sent launch-deck.pdf (4.2 MB) to Dana. Her agents can verify it by its hash.send
Connect in a minute

Add AgentTransfer to the AIs you already use.

One connector URL works everywhere. Each app asks you to sign in and approve it once.

  1. In ChatGPT open Settings → Apps & Connectors and turn on Developer mode (under Advanced).
  2. Choose Create, paste the URL below, and pick OAuth.
  3. Sign in and click Allow. Then attach a file and say "Save this to AgentTransfer."
  1. In Claude open Settings → Connectors → Add custom connector.
  2. Paste the URL below and click Connect.
  3. Sign in and click Allow. Then ask "What's in my AgentTransfer drive?"
  1. Sign in and create an API key named muse on your account page.
  2. Tell Muse: "Connect to AgentTransfer at https://agenttransfer.dev — the API is described at https://agenttransfer.dev/openapi.json — using this key."
  3. Muse becomes [email protected] and shares your drive.
  1. Claude Code: claude mcp add --transport http agenttransfer https://agenttransfer.dev/mcp, then run /mcp to sign in.
  2. Codex, Cursor and others: add the URL below as a remote MCP server with OAuth.
  3. For big files, the CLI uploads straight to storage: agenttransfer put ./dataset.tar.gz
  1. Gemini, Perplexity, Grok, Le Chat: add a custom MCP connector with the URL below and OAuth.
  2. Apps without OAuth can use an API key from your account as Authorization: Bearer ….
  3. Everything is plain HTTPS too: OpenAPI · llms.txt.
https://agenttransfer.dev/mcp

More detail for each app is in the docs.

Built to be trusted

Handoffs you can check, from apps you can disconnect.

Hash-checkedEvery file is fingerprinted with sha256 when it's saved, and the hash travels with every delivery so the receiver can check it.
An address per AIyou+chatgpt@, you+claude@ — see what each one did, cut any one off.
Your approval, every timeEach AI connects through a sign-in and a consent screen you approve — and you can disconnect any of them.
Links that expireShare links last 24 hours at most, and can be single-use.
Not used for trainingYour files are stored and delivered for you — never sold, never used to train models.
Open sourceMIT-licensed. Read the code, or run your own copy with one binary.
Questions

Good to know

What can a connected AI see?

Only your AgentTransfer drive and the messages sent to its own address. It can't see your other apps, chats or accounts. Disconnect it from your account page any time.

Is it free?

Yes. The free plan includes a 10 GB drive, files up to 5 GB each, and as many connected AIs as you like. Bigger plans are coming.

How big can files be?

Up to 5 GB each. Chat apps limit what you can attach, so for big files ask your AI to "create an AgentTransfer upload page", use the drop zone on your account page, or the CLI — all three go straight to storage.

Who can download my files?

You and the AIs you connect. A file only leaves your drive when you or one of your AIs sends it, or creates a share link — and links expire within 24 hours.

Can I send files to other people?

Yes. Send to their address ([email protected]) and it arrives in their agents' inboxes with its sha256 fingerprint. Send to any email address and they get a download link.

Can I delete my data?

Delete any file whenever you like. Deleting your account removes your connected agents and every file in your drive.

Can I run it myself?

Yes — AgentTransfer is open source. One Go binary runs the whole service on your own server, with local disk or any S3-compatible storage. GitHub.

For developers and agents

It's an MCP server and a plain HTTPS API.

Connect over MCP with OAuth at https://agenttransfer.dev/mcp, or use an API key with the REST API (OpenAPI) and the open-source CLI. Agents can read /llms.txt.

# save a file, then send it to another agent
curl -T report.pdf https://agenttransfer.dev/v1/files/report.pdf -H "Authorization: Bearer $AGENTTRANSFER_KEY"
curl -X POST https://agenttransfer.dev/v1/send -H "Authorization: Bearer $AGENTTRANSFER_KEY" \
  -d '{"to":["[email protected]"],"file":"report.pdf","note":"final version"}'
Pricing

Free while we're early.

Free
$0
per month
  • 10 GB drive
  • Files up to 5 GB each
  • Unlimited connected AIs
  • Send to any agent or person
Get started
More space
Soon
bigger drive and files
  • 100 GB+ drive
  • Larger files
  • Priority support
Ask for early access

Give your AIs one place to put things.

Two minutes to set up. Free.

Get started — it's freeView source