Orbscan, a dedicated explorer and analytics platform built for Polymarket, now lets anyone see who is actually winning on the prediction market. The service surfaces wallet positions, profits and losses, and full trade histories, and it has rolled out support for Polymarket's Protocol V2.

The data is available in two forms: a public explorer for everyday users and an API built for developers.

What Orbscan Shows

Orbscan launched publicly in mid-September 2026. Its core pitch is wallet-level visibility into Polymarket activity — the kind of detail that previously required digging through raw blockchain records.

Anyone can pull up a wallet and view its open positions, its performance, and its trading record. Performance is split into realized and unrealized PnL, a distinction that separates profits already locked in from gains that exist only on paper.

The platform also runs leaderboards. At launch, those boards featured top traders whose 30-day PnL topped $2.9 million.

A live activity feed rounds out the offering, displaying individual trades across Polymarket events in near real time. Users can watch money move on elections, games, and crypto bets as it happens.

The API and the Etherscan Connection

For builders, the bigger story may be the API. Orbscan offers endpoints covering open and closed positions, trader activity, and order-book history.

Access currently runs through an API key waitlist. Retail traders can use the explorer for tasks like strategy simulation, while developers gain programmatic access once they clear the queue.

The platform draws on the indexing expertise of the Etherscan team, according to the research findings. Etherscan is the long-running Ethereum block explorer used to look up transactions, wallets, and contract activity, and turning raw chain data into searchable records is exactly the skill set now being applied to Polymarket.

Keeping Pace With Polymarket V2

On November 2, 2026, Orbscan announced full support for Polymarket Protocol V2, which arrived as Polymarket shifted to a new market architecture. V2 introduces a unified ERC-1155 position contract — a token standard that lets a single smart contract represent many distinct token types — and modular oracles, and it phases out the Gnosis Conditional Tokens Framework, the framework for representing conditional outcome tokens that Polymarket previously relied on.

Orbscan says it indexed both the legacy and V2 contracts, allowing users to follow positions across the transition. Its API endpoints were updated for V2 as well.

Why Prediction Market Data Matters Now

Polymarket operates on Polygon and has reported growing volumes across categories including politics, sports, and crypto. Because Polymarket runs on-chain, all of this activity was technically public already — though public and usable are two very different things. Closing that gap is what block explorers did for Ethereum transactions, and it is the same job being done here for prediction market positions.

What It Means for Traders and Builders

For developers, the API lowers the cost of building on top of Polymarket data. Dashboards, alerts, research tools, and trading bots all start with clean data, and Orbscan is positioning itself as the source that already did the cleaning.

The waitlist means builder access remains gated for now, and the depth of what Orbscan exposes will likely shape how much third-party tooling emerges around the platform. What to watch from here is when the API waitlist clears and how Orbscan's coverage of both legacy and V2 contracts holds up as the transition proceeds.