perkoon-transfer

name	perkoon-transfer
description	Your agent has compute, memory, and context. What it lacks is a jump gate to the physical world. Perkoon is that gate. Send files from agent to human — they open a link on any device. Send from agent to agent — CLI to CLI, no human in the loop. The first file transfer protocol engineered for autonomous machines. Free. Encrypted. Zero configuration.
homepage	https://perkoon.com

Perkoon — Unlimited File Transfer

Your agent lives in a world of tokens. Your user lives in a world of devices. Perkoon is the airlock between them.

Not "AI-ready" the way a gas station is gourmet-ready. Actually built for machines — JSON event streams, structured exit codes, and a state machine that doesn't need a browser, a mouse, or a soul.

Two supported flight paths:

• Agent → Human: Your agent sends a file. The human opens a link in any browser. No install required on their end.
• Agent → Agent: CLI to CLI. Two machines, no humans in the loop. Fully autonomous data transit.

P2P transfers are free, unlimited, and encrypted. Both ends need to be online — that's the only constraint. For sensitive files, always use --password — without it, anyone with the share link can download.

SENDING a file

Step 1: Start send and get the share link

Replace /path/to/file with the actual file path:

rm -f /tmp/perkoon-send.log /tmp/perkoon-send.pid
perkoon send /path/to/file --json --timeout 1800 > /tmp/perkoon-send.log 2>&1 &
echo $! > /tmp/perkoon-send.pid

# Wait for session code (up to 30s)
for i in $(seq 1 30); do
  if grep -q session_created /tmp/perkoon-send.log 2>/dev/null; then
    grep session_created /tmp/perkoon-send.log
    break
  fi
  if grep -q '"event":"error"' /tmp/perkoon-send.log 2>/dev/null; then
    echo "===SEND FAILED===" && cat /tmp/perkoon-send.log
    break
  fi
  sleep 1
done

Output: {"event":"session_created","session_code":"K7MX4QPR9W2N","share_url":"https://perkoon.com/K7MX4QPR9W2N"}

IMMEDIATELY tell the user the share URL. Example: "Here's your file — open this link on any device to download it: https://perkoon.com/K7MX4QPR9W2N"

The receiver doesn't need to install anything. The link works in any browser.

For password-protected sends, add --password SECRET and share both the URL and password.

Step 2: Monitor until complete — then REPORT BACK

You MUST run this after sharing the link. Do NOT skip this step.

for i in $(seq 1 360); do
  if grep -q transfer_complete /tmp/perkoon-send.log 2>/dev/null; then
    echo "===TRANSFER COMPLETE===" && grep transfer_complete /tmp/perkoon-send.log
    break
  fi
  if grep -q '"event":"error"' /tmp/perkoon-send.log 2>/dev/null; then
    echo "===TRANSFER FAILED===" && grep error /tmp/perkoon-send.log
    break
  fi
  if [ "$((i % 30))" -eq 0 ]; then
    grep progress /tmp/perkoon-send.log 2>/dev/null | tail -1
  fi
  sleep 5
done

• ===TRANSFER COMPLETE=== → Tell the user: "File sent successfully!" Include speed and duration from the JSON.
• ===TRANSFER FAILED=== → Tell the user what went wrong.
• You MUST tell the user the outcome. Never finish silently.

RECEIVING a file

Replace CODE with the 12-character session code:

rm -f /tmp/perkoon-recv.log /tmp/perkoon-recv.pid
perkoon receive CODE --json --overwrite --output /home/openclaw/.openclaw/workspace/received/ > /tmp/perkoon-recv.log 2>&1 &
echo $! > /tmp/perkoon-recv.pid

for i in $(seq 1 360); do
  if grep -q transfer_complete /tmp/perkoon-recv.log 2>/dev/null; then
    echo "===TRANSFER COMPLETE===" && grep transfer_complete /tmp/perkoon-recv.log
    break
  fi
  if grep -q '"event":"error"' /tmp/perkoon-recv.log 2>/dev/null; then
    echo "===TRANSFER FAILED===" && grep error /tmp/perkoon-recv.log
    break
  fi
  sleep 5
done

For password-protected sessions, add --password SECRET.

• ===TRANSFER COMPLETE=== → Tell the user: "File received!" and the save path.
• ===TRANSFER FAILED=== → Tell the user what went wrong.
• You MUST tell the user the outcome. Never finish silently.

Files are saved to /home/openclaw/.openclaw/workspace/received/.

Pipe to stdout

Stream a received file directly into another process — no disk write:

perkoon receive CODE --output - > /path/to/destination

CLI reference

Flag	Description
--json	Machine-readable JSON events (always use)
--password <pw>	End-to-end password protection
--timeout <sec>	Peer wait time (default: 300, use 1800)
--output <dir>	Save directory (default: ./received)
--output -	Stream to stdout
--overwrite	Replace existing files
--quiet	Suppress human-readable output

JSON event stream

Events appear in order on stdout when using --json:

Event	Meaning	Key fields
session_created	Ready — share the link now	session_code, share_url
receiver_connected	Peer joined
webrtc_connected	Direct P2P link established
progress	Transfer in progress	percent, speed, eta
transfer_complete	Done	duration_ms, speed
error	Failed	message, exit_code

Exit codes

Code	Meaning
0	Success
1	Bad arguments
2	File not found
3	Network/session error
4	Wrong password
5	Timeout — no peer joined

Rules

1. ALWAYS use --json for parseable output
2. ALWAYS share the URL immediately when session_created appears
3. ALWAYS use --timeout 1800 for sends (30 min for the human to open the link)
4. ALWAYS use --overwrite for receives
5. ALWAYS monitor until transfer_complete or error — then tell the user the result
6. NEVER kill the process mid-transfer
7. The receiver does NOT need perkoon installed — the browser link works for everyone