Company

About Poly Syncer

Poly Syncer is the Polymarket copy trading layer for everyone else. We mirror trades from the top Polymarket traders to your own wallet, automatically, without custody and without compromise.

Last reviewed · Eli Marsh, Co-founder

Our mission

Smart money exists on Polymarket. Roughly two percent of wallets generate the majority of profit, and their behavior is fully on-chain — every position, every entry, every exit is visible to anyone who knows where to look. The problem is that knowing is not the same as acting. By the time a human notices a position taken by a top wallet, the market has already moved.

Poly Syncer exists to close that gap. Our mission is simple: make prediction market copy trading work for everyone, without asking users to surrender custody, identity, or attention. If you can see the trade, you should be able to take the trade — at the same price, at the same speed, on your own wallet.

Origin story

Centralized exchanges had copy trading by 2018. Decentralized exchanges had it by 2022. Prediction markets — arguably the asset class with the largest gap between the best wallets and average wallets — still did not have it in 2025. We thought that was strange.

The three of us had spent the previous decade building execution systems at quant funds and high-frequency trading desks. We had watched friends manually refresh Polymarket leaderboards, copy wallet addresses into block explorers, and try to front-run their own observations with hand-typed orders. It was the same pattern we had seen on every other venue before infrastructure caught up: obvious alpha, broken plumbing.

We started Poly Syncer in late 2025 to build the plumbing. The first internal version was a Rust listener that watched a small set of wallets and replayed their trades on a single test account. It worked. It worked surprisingly well. The hard part — and the part we have been refining for over a year — is making it work at scale, at sub-second latency, and without ever touching a user's funds.

What we believe

Privacy-first by default

Poly Syncer is non-custodial. We never hold user funds, never request KYC, and never ask for an email address to sign up. Trade signing happens on the user's device through EIP-712 message signatures, and the resulting orders are routed through a Flashbots-style private mempool to prevent front-running. The only thing we know about a user is their wallet address — and we forget the rest.

Execution-first

Copy trading is only useful if the copy lands at a price close to the original. Our listener runs on co-located infrastructure with premium Polygon RPC endpoints, and our risk engine evaluates every signal in under 200 milliseconds. End-to-end p99 latency from leader trade to mirror fill currently sits at 1.8 seconds. We track this number obsessively and publish it on the status page.

Transparency over marketing

We publish what we do and how we do it. The whitepaper covers the architecture and risk model in detail. The changelog documents every meaningful release. When we have an outage, it goes on the status page within minutes — not after a post-mortem cycle.

By the numbers

How we make money

Subscription only. Pro is $299 per month and includes 250 tracked wallets, premium RPC, and access to all 25 categories. Elite is $499 per month and adds unlimited wallets, AI alpha signals, sub-second routing, and a personal account manager. A free view-only tier lets you browse the leaderboard before upgrading. We take no spread, no commission, and no kickback from any market.

The team

Poly Syncer was founded by three people who had spent too long building execution systems for other people's funds. Today the team is fourteen engineers, designers, and researchers, distributed across six time zones. We do not have an office. We do have a Slack channel called #latency that is genuinely too active.

Eli Marsh Co-founder · former quant at Two Sigma · ex-execution lead at Jump Crypto

Where we go from here

The roadmap is published in the whitepaper, but the short version is this: deeper signal models, broader market coverage as Polymarket expands, and a public API that lets builders compose copy-trading into their own products. If that resonates and you want to build it with us, the careers page is the right place to start. If you have a question that is not in the help center, reach us through the contact page.