mekong-tunnel

Expose your Python dev server to the internet in one command. Works with FastAPI, Flask, Django, Gunicorn, Uvicorn, Hypercorn, and Granian.

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How it works

mekong-tunnel installs framework-specific commands that start your dev server and open a public tunnel via mekongtunnel.dev — all in a single command.

uvicorn-mekong main:app --reload

 uvicorn-mekong  cmd: uvicorn main:app --reload  port: 8000  mode: tunnel

[uvicorn] INFO:     Uvicorn running on http://127.0.0.1:8000
✔  uvicorn is up on port 8000.
[tunnel]  ✔  Tunnel is live!
[tunnel]     URL  https://happy-tiger-a1b2c3d4.mekongtunnel.dev

╔═══════════════════════════════════════════════════════════════╗
║  Public URL: https://happy-tiger-a1b2c3d4.mekongtunnel.dev   ║
╚═══════════════════════════════════════════════════════════════╝

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Installation

pip install mekong-tunnel

Requires the mekong binary — install it separately:

# macOS / Linux (auto-detect arch)
curl -fsSL https://github.com/MuyleangIng/MekongTunnel/releases/latest/download/mekong-$(uname -s | tr A-Z a-z)-$(uname -m) \
  -o ~/.local/bin/mekong && chmod +x ~/.local/bin/mekong

# Windows — download from:
# https://github.com/MuyleangIng/MekongTunnel/releases/latest

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Commands

Command	Framework	Default port
uvicorn-mekong	Uvicorn / FastAPI	8000
fastapi-mekong	FastAPI (alias for uvicorn)	8000
flask-mekong	Flask	5000
gunicorn-mekong	Gunicorn	8000
django-mekong	Django	8000
hypercorn-mekong	Hypercorn	8000
granian-mekong	Granian	8000

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Modes

Each command supports three modes:

Flag	Mode	What happens
(none)	tunnel	Start server + open public tunnel, print URL
--local	local	Start server only, open http://localhost:{port} in browser
--domain	domain	Start server + tunnel, open public URL in browser

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Usage

FastAPI / Uvicorn

# Default: start server + tunnel, print public URL
uvicorn-mekong main:app

# With hot-reload and custom port
uvicorn-mekong main:app --reload --port 8080

# Open localhost in browser (no tunnel)
uvicorn-mekong main:app --local

# Open public URL in browser automatically
uvicorn-mekong main:app --domain

# Tunnel with 2-hour expiry
uvicorn-mekong main:app --expire 2h

# fastapi-mekong is identical to uvicorn-mekong
fastapi-mekong main:app --reload --domain

Flask

flask-mekong run                        # port 5000 + tunnel
flask-mekong run --port 5001            # custom port
flask-mekong run --local                # localhost only, open browser
flask-mekong run --domain               # tunnel + open public URL
flask-mekong run --expire 1d            # expires in 1 day

Django

django-mekong runserver                 # port 8000 + tunnel
django-mekong runserver 8080            # custom port
django-mekong runserver 0.0.0.0:8000   # bind all interfaces
django-mekong runserver --local         # localhost only, open browser
django-mekong runserver --domain        # tunnel + open public URL

Gunicorn

gunicorn-mekong app:app                        # port 8000 + tunnel
gunicorn-mekong app:app --bind 0.0.0.0:8080    # custom port
gunicorn-mekong app:app -w 4                   # 4 workers + tunnel
gunicorn-mekong app:app --domain               # tunnel + open public URL

Hypercorn

hypercorn-mekong main:app                      # port 8000 + tunnel
hypercorn-mekong main:app --bind 0.0.0.0:8080  # custom port
hypercorn-mekong main:app --domain             # tunnel + open public URL

Granian

granian-mekong main:app                        # port 8000 + tunnel
granian-mekong main:app --port 8080            # custom port
granian-mekong main:app --domain               # tunnel + open public URL

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All mekong-tunnel flags

These flags are consumed by mekong-tunnel and not forwarded to your framework:

Flag	Description
--local	No tunnel — open localhost in browser
--domain	Tunnel + open public URL in browser
--expire <val>	Tunnel expiry: 30m, 2h, 1d, 1w
--no-qr	Suppress QR code in terminal
--daemon	Run tunnel in background
--help, -h	Show help

All other flags are forwarded verbatim to your framework.

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Quick test (FastAPI)

pip install fastapi uvicorn mekong-tunnel

cat > main.py << 'EOF'
from fastapi import FastAPI
app = FastAPI()

@app.get("/")
def root():
    return {"message": "Hello from Mekong Tunnel!"}
EOF

uvicorn-mekong main:app --reload

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How it works internally

1. Start your server as a subprocess
2. Poll the port until it accepts connections (30 s timeout)
3. Spawn mekong tunnel to the detected port
4. Stream both outputs to your terminal
5. On URL detected — print banner (and open browser if --domain)
6. Clean shutdown on Ctrl+C — stops both processes

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Requirements

• Python 3.8+
• mekong binary on PATH (download)
• No other Python dependencies

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License

MIT © Ing Muyleang — KhmerStack