Trade arbitrage on autopilot.
Self-custody. No email. No KYC. Deposit any asset on any supported chain, the bot scans every Polymarket order book 24/7 for stale prices, illiquid edge, and resolution-lag races.
Three ways the bot finds edge.
No black-box claims. Every strategy is observable in the dashboard with the raw order-book context that triggered it.
Spread arbitrage
When a YES + NO market sums to less than $1 (or buying both sides for less than $1 net), we lock the difference instantly. Tiny edge per trade, hundreds per day on long-tail markets.
Stale order races
Big news drops, the book hasn't updated yet. Bot is faster than human market-makers. We hit stale resting orders before they get pulled — usually 80–200 bps of edge for ~3 seconds.
Resolution-lag arbitrage
Outcome is functionally known (e.g. a sports event already over) but Polymarket hasn't resolved it. We buy the certain side under $1.00 and wait for settlement.
What a winning day looks like.
Anonymized examples of real arb shape and edge size. Marked [DEMO] — replace with your account's live feed after first verified deposit.
Your seed, your funds.
POLYARB never stores plaintext keys. Every chain's deposit address is derived from a 12-word seed that lives encrypted in your browser.
Generated in browser
Pick 'Generate' on the wallet creator. A 128-bit BIP39 seed is generated client-side via WebCrypto. Save the 12 words. We never see them.
Encrypted vault
Your seed is AES-256-GCM encrypted with a key derived from your passphrase (PBKDF2-SHA256, 310k iterations). Ciphertext stored. Plaintext stays in your browser.
Bot signs delegated
The engine signs CLOB orders on your behalf using credentials derived once at signup via EIP-712 — scoped to Polymarket trading only. Can't move your funds elsewhere.
Forgot your passphrase?
A separate sealed-box ciphertext under the operator's master key acts as a recovery backup. Support can decrypt it for you. Every recovery is logged to audit trail.
Common questions.
Why no email and no KYC?
Less data we hold, less of a target. Username + password to log in, plus a one-time 12-word recovery phrase you write down. If you forget the password, you reset with the phrase. No password reset emails, no SMS, no third-party.
Who holds my seed phrase?
You do. Your browser encrypts the seed with a passphrase you choose, then both that ciphertext and a separately-encrypted backup (sealed under our operator's offline master key) get stored. The plaintext seed itself never reaches our servers. If you ever lose your passphrase, support can decrypt the backup for you — every recovery is logged.
What chains can I deposit?
Polygon, Ethereum, Base, Arbitrum, Optimism, Bitcoin, and Solana. Each wallet generates an address on every chain from the same seed. Polymarket trades happen on Polygon — funds on other chains need bridging before the bot can trade with them, but they still show up in your wallet immediately.
What's the anti-bot gate?
Add a wallet to unlock the trading engine — no KYC, no funding required. Once you have a wallet on file the engine becomes active, and you can switch to live execution from Settings whenever you're ready.
How does the bot actually make money?
Liquid Polymarket markets have ~0 bps of arb edge after fees because professional market-makers close it instantly. We target three categories where edge persists: illiquid markets under $50k volume, stale resting orders during news events, and resolution-lag races on events that have already concluded.
Is this affiliated with Polymarket?
No. POLYARB is a third-party tool that trades against Polymarket's public order books via their CLOB API. We have no relationship with Polymarket Inc. Their logo appears here as visual reference only.
Where do you run? US users?
Same posture as Polymarket itself: we geo-block US IPs. No US persons. ToS click-through gates that explicitly. We're not a broker, we're a self-hosted toolkit you use against your own wallet.
Ready to scan?
Free to use.
No card. No email. Deposit anything when you're ready to unlock live trading.