Trading bots, arbitrage scripts and market-data collectors run all day and care about two things: staying up, and being close to the exchange. A VPS handles both better than a home computer.
Why not run it at home?
- Power cuts and router reboots stop your bot at the worst moment.
- Home connections add jitter and are rarely close to an exchange.
- Leaving a computer on around the clock costs more than a small VPS.
What matters in a VPS for bots
- Network latency to the exchange. Most major crypto exchanges run their matching engines in a few regions. Pick the location with the lowest round trip to the API you use.
- Consistent CPU. Dedicated-CPU plans give steadier timing than shared ones.
- Stable uptime. Choose a provider with a status page and NVMe storage for fast logs and databases.
- Modest resources. Many bots need only 1 to 2 vCPU and 2 GB of RAM.
Measure, do not guess
Order a small plan in two or three candidate locations, then test the real latency to your exchange's API:
ping -c 20 api.example-exchange.com
curl -o /dev/null -s -w "connect: %{time_connect}s total: %{time_total}s\n" https://api.example-exchange.com/ping
mtr -rwc 50 api.example-exchange.comChoose by the median and the worst case, not the best single result. Spikes hurt more than a slightly higher average.
Keep the bot running
[Unit]
Description=Trading bot
After=network-online.target
[Service]
User=bot
WorkingDirectory=/opt/bot
ExecStart=/usr/bin/python3 bot.py
Restart=always
RestartSec=5
[Install]
WantedBy=multi-user.targetSave it as /etc/systemd/system/bot.service and enable it with systemctl enable --now bot. Systemd restarts it after a crash and starts it on boot.
Safety checklist
- Use API keys with trade-only permissions and withdrawals disabled.
- Restrict each key to your server's IP address in the exchange settings.
- Store keys in environment variables or a secrets file with restricted permissions, never in a public repository.
- Log every order, and set alerts for errors and unusual balances.
- Test with small amounts first. Automated trading can lose money quickly.
Nothing here is financial advice. A fast server does not make a strategy profitable.