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AgentTransfer moves files between AI agents — yours and anyone's. You get one drive that every AI you connect shares, and an address other agents and people can send files to.

The idea in one minute

Your drive. One place for files, shared by every AI you connect. ChatGPT saves a spreadsheet; Claude, Muse or your coding agent can open it a minute later.
Addresses. You are [email protected]. Each AI you connect gets its own address under your name — you+chatgpt@, you+claude@, you+laptop@ — so you can see who did what and disconnect any one of them.
Sending. Send a file to any address and it lands in that inbox with its sha256, so the receiving agent can prove it got exactly what you sent. Outside email addresses get a normal email with a link.
Links. Download links expire (24 hours at most) and can be single-use.
Size. Files up to 5 GB each; your drive holds 10 GB on the free plan. Big files go straight to storage and are hash-checked before they show up.

Connect your AIs

The connector URL for every MCP client:

https://agenttransfer.dev/mcp

Clients sign in with OAuth — you approve each one on a consent screen, and it becomes [email protected].

ChatGPT

Open Settings → Apps & Connectors. If AgentTransfer is in the directory, click it and connect.
Otherwise enable Developer mode (Settings → Apps & Connectors → Advanced), choose Create, paste the URL above, and pick OAuth.
Sign in and click Allow. Try: “Save this file to AgentTransfer.” with a file attached.

Claude

Open Settings → Connectors → Add custom connector, paste the URL above, and connect.
Sign in and click Allow. Try: “List my AgentTransfer files.”

Claude Code: claude mcp add --transport http agenttransfer https://agenttransfer.dev/mcp, then run /mcp to sign in.

Meta Muse

In your account, create an API key named muse.
Tell Muse: “Connect to AgentTransfer at https://agenttransfer.dev. The API is described at https://agenttransfer.dev/openapi.json. Use this API key: …”
Muse becomes [email protected] and shares your drive.

Gemini, Perplexity, Grok, Le Chat, Cursor, Codex

Add a custom MCP connector with the URL above and OAuth. For clients configured with JSON:

{
  "mcpServers": {
    "agenttransfer": { "url": "https://agenttransfer.dev/mcp" }
  }
}

Clients without OAuth can send an API key from your account as Authorization: Bearer at_live_….

What a connected AI can do

`save_file`	Save an attached file, or text it wrote, to your drive
`list_files` · `read_file`	Find files and read text or images
`get_link`	Make an expiring download link
`send`	Send a file or note to any address
`check_inbox` · `read_message` · `save_received_file`	Receive files and keep them
`delete_file`	Delete a file (only when you ask)
`create_upload_request`	A web page anyone can upload a big file through

Big files from a computer: the CLI

Coding agents and scripts can use the open-source CLI, which streams files of any size straight to storage and verifies the sha256 on the way back:

agenttransfer login https://agenttransfer.dev --key at_live_…   # a key from your account
agenttransfer put ./dataset.tar.gz                # resumable, hash-checked
agenttransfer send dataset.tar.gz --to [email protected] --note "v3"
agenttransfer inbox --wait 60
agenttransfer get msg_…                           # downloads and verifies

Install from GitHub releases or go install github.com/shehryarsaroya/agenttransfer@latest. It also runs as a local MCP server (agenttransfer mcp) that moves files by path, so bytes never pass through the model.

REST API

Everything above is plain HTTPS with a bearer key. The machine-readable spec is at /openapi.json; an agent-readable overview is at /llms.txt.

# upload: ask for a session, PUT the bytes, complete
curl -X POST https://agenttransfer.dev/v1/uploads -H "Authorization: Bearer $KEY" \
  -d '{"name":"report.pdf","size":48213}'
curl -T report.pdf "<put_url from the response>"
curl -X POST https://agenttransfer.dev/v1/uploads/<upload_id>/complete -H "Authorization: Bearer $KEY"

# send it, then receive on the other side
curl -X POST https://agenttransfer.dev/v1/send -H "Authorization: Bearer $KEY" -H "Idempotency-Key: once-1" \
  -d '{"to":["[email protected]"],"file":"report.pdf","note":"final"}'
curl "https://agenttransfer.dev/v1/inbox/wait?timeout=60" -H "Authorization: Bearer $KEY"

Run your own

AgentTransfer is one open-source Go binary (MIT). Run it on your own server with local disk or any S3-compatible bucket — see GitHub.