The short answer
Host a Polymarket bot on a small Linux VPS that never sleeps, in London or Amsterdam. Polymarket’s order book (the CLOB) runs in London, so that is where distance costs you. For most bots, a $6/month DigitalOcean Droplet is enough. Pay for a trading VPS like QuantVPS only when your own fills show that latency is losing you money.
I have run three setups around my bots, and this page is the comparison I wanted before I started.
What does a Polymarket bot need from a server?
Four things, and none of them is a big machine.
- It never turns off. A bot is a loop. A laptop that sleeps or reboots for updates kills the loop and any state it held.
- It holds WebSocket connections. Price feeds stream in all day. Serverless platforms cap run time and tear down between calls, which fights a connection that has to stay open.
- It restarts itself. Run the bot as a systemd service with
Restart=always. A crash at 3am then costs ten seconds, not the bot. My AI agent VPS setup has the unit file. - It sits near London. Distance to the order book is the one spec that changes your fills.
My bot is a Python asyncio loop with live Binance and Polymarket feeds. My notes from March 2026 record it using about 200MB of RAM, with the CPU barely touching 5% between signals. You are not shopping for power.
Does server location matter for a Polymarket bot?
Yes, more than the code does. These are the round trips to the CLOB in London from my build notes in early 2026. I have not re-measured them, so measure your own before you pick a region:
| Bot location | Round trip to the CLOB |
|---|---|
| Amsterdam | 5-12ms |
| Frankfurt | 15-25ms |
| US East (NYC) | 130-150ms |
| US West | 180-200ms |
Whether that gap matters depends on your strategy. A bot that reacts to moves over 30 to 90 seconds can live with Amsterdam or even US East. A strategy that races other bots for the same fill cannot. The full bot build is in how I built a Polymarket trading bot.
The three setups I ran
| Setup | What I ran on it | Cost | The catch |
|---|---|---|---|
| DigitalOcean Droplet, New York | Monitors and cron jobs for my live bot, for about four months in 2026 | $6/month for 1 vCPU, 1GB RAM | You manage the server yourself |
| QuantVPS | My live Polymarket bot, for about four months in 2026 | Premium, priced for latency | Worth it only for latency-sensitive strategies |
| Oracle Always Free (ARM) | My research bots now, in dry-run mode | $0 | Free capacity is hard to get |
My bots are paused for research right now. When they are live, QuantVPS is where they run.
Start here: a $6 Droplet in London or Amsterdam
For a first bot, or any bot that trades on minutes and not milliseconds, this is what I would set up.
DigitalOcean’s $6 Droplet gives you 1 vCPU, 1GB RAM, 25GB SSD and 1,000GB of transfer at a flat monthly price. It offers both London (LON1) and Amsterdam (AMS3) regions. I checked both on 11/08/2026. The flat bill matters for a bot. Usage-billed platforms charge for every hour a process is awake, and a bot is awake every hour.
- Create a Basic Droplet with Ubuntu LTS in LON1 or AMS3, and add your SSH key.
- Turn off password logins. I skipped this on my first Droplet, and my notes from then record 3,000 brute-force attempts in the auth log a week later.
- Make a non-root user, clone the bot, and put your keys in a
.envfile outside the repo. - Install the bot as a systemd service with
Restart=always. - Measure your round trip to the CLOB before you trade anything.
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When is a trading VPS like QuantVPS worth it?
When your own fill data shows latency is costing you money, and not before.
I ran my live Polymarket bot on QuantVPS for about four months. It is what I would go back to the moment latency matters. That strategy needed consistent single-digit milliseconds, not a 5-12ms range, and that one requirement is what a trading VPS sells.
Pay for one when all of these are true:
- Your fills show slippage you can tie to latency.
- You need consistency, not just a low average.
- The strategy is stable enough to be worth tuning.
- The gain you measured is bigger than the price difference.
If any of those is a guess, stay on the Droplet. I compare the two side by side in VPS providers compared.
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The free route: Oracle Always Free
Oracle’s Always Free tier includes an ARM machine with up to 4 cores and 24GB of RAM at no cost. My research bots run there now, in dry-run mode, placing no orders. The catch is getting one. Free ARM capacity in popular regions is often full. Mine provisioned in Amsterdam on 06/11/2026 after 28 tries over about 85 minutes, with a script retrying for me. If you get it, it is more machine than a bot needs. If you do not, the $6 Droplet is the dependable choice.
A server does not change where you can trade
A VPS in London changes where your packets start. It does not change where you live or what you are allowed to do. Polymarket publishes the jurisdictions it restricts, and its terms apply to you, not to your server. Follow them for where you actually are, and never use a server to get around a geoblock.
How do you pick, in one paragraph?
Measure before you buy. If your bot trades on minutes, run it on a $6 Droplet in London or Amsterdam and spend your effort on the strategy. If your own fills prove that milliseconds cost you money, move that one bot to a trading VPS. If you want to spend nothing and can get capacity, Oracle’s free tier works. Whatever you pick, start smaller than you think: by my notes, my bot used a fifth of a gigabyte.
Nothing here is financial advice. It is plumbing, and plumbing says nothing about whether a strategy makes money.