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Wallet & Funds

How to Export Your Polymarket Key

The exact Polymarket export flow, what the key is used for, the safety rules that matter, and what to do if you think your key has been exposed.

Last updated August 23, 2026

Polycopy places orders on your Polymarket account, and placing an order means signing it. The key you export is what makes that signature possible. It is encrypted in your browser before it leaves your device, so Polycopy never sees it in readable form. See Is My Money Safe? for how that works.

1

Log into Polymarket

Go to polymarket.com and sign in with the account you want Polycopy to trade on. If you have more than one Polymarket account, make sure this is the one holding your funds.

2

Open Account settings

Open your Polymarket account settings and find Account.

3

Start the export

Click "Start Export". Polymarket verifies it is you and then reveals your private key. You can also go straight to reveal.magic.link/polymarket using the same email you log into Polymarket with.

4

Copy the key

The key starts with 0x. Copy it. Do not screenshot it, do not email it to yourself, and do not paste it into a notes app.

5

Paste it into Polycopy Settings

Go to Settings, click Connect in the Subscription & Wallet section, paste the key into the field, and click Connect Wallet. Polycopy detects your Polymarket address automatically.

6

Clear your clipboard

Copy something harmless afterwards, so the key is not the next thing you paste somewhere by accident.

Rules worth being rigid about

Never share it, for any reason

Not with support, not for a verification step, not with a trading group. Anyone holding this key can move your funds.

Never paste it into a site you reached from a link

Type polycopy.app into the address bar yourself and check the domain before pasting anything.

Do not store it in plain text

If you keep a copy, keep it in a password manager. A notes app, a chat to yourself, and a screenshot in your photo roll are all readable by anything that gets into your device.

Treat a seed phrase request as an attack

Polycopy has no use for a seed phrase and will never ask for one.

If the connection is refused

Three messages account for nearly every failed connection. Each has a different fix.

"This key doesn't control your Polymarket account"

The key you pasted cannot sign for the Polymarket account holding your funds. Almost always this means the key was exported while logged into Magic under a different email from the one on your Polymarket account. Open the export again and, when Magic asks you to log in, use the exact address you use on Polymarket.com.

"That private key does not look valid"

The field wants the 64-character hex key from Polymarket's export, starting with 0x. A seed phrase, a wallet address, or a truncated paste will all fail here. Copy the whole key again.

"The same private key can only be imported to Turnkey once"

This means the key is already linked to a DIFFERENT Polycopy account. Reconnecting a key you previously used on this same account is handled automatically, so if you see this, the key belongs elsewhere. Email help@polycopy.app from the address on your account and we will sort out which account holds it.

It connects, but Cash reads $0

The connection worked and the account is the wrong one, or the money in it is still unconverted USDC. Check the wallet address in Settings against your Polymarket profile, and look for an amber dot next to Cash in the top bar. See My Deposit Has Not Arrived.

Only Polymarket.com accounts work

A key from a regional Polymarket deployment or from an unrelated wallet will not connect. If you use more than one, connect the account you actually trade on.

What to do if you think your key is exposed

Move fast and in this order. Assume the worst rather than hoping.

1. Move your funds

On Polymarket, sell what you can and withdraw the cash to a wallet the exposed key does not control. Speed matters more than getting the best fill.

2. Disconnect the wallet in Polycopy

Settings, Subscription & Wallet, Remove. That deletes the trading credentials from your Polycopy account and stops Polycopy signing anything for that wallet. It does not un-expose the key itself — nothing can, which is why step 1 comes first.

3. Stop using that Polymarket account for funds

Polymarket offers no way to rotate the key on an existing wallet, so an exposed key means that account stays exposed. Start using a fresh one.

4. Tell us

Email help@polycopy.app or use the Get Help form on the help center with the affected wallet address, written from the email on your Polycopy account.

Still stuck? Send us a message and we'll reply by email.
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