# Orbscan

## Docs

- [Orbscan: Polymarket On-Chain Explorer and REST API](https://docs.orbscan.com/introduction.md): Orbscan is a REST API and on-chain explorer for Polymarket. Query trader activity, deposits, withdrawals, and decoded transactions via JSON.
- [Orbscan API Quickstart: Your First Request in 5 Minutes](https://docs.orbscan.com/quickstart.md): Make your first Orbscan API call in under 5 minutes. Fetch live trader activity by wallet address and inspect the full JSON response.
- [Authenticate with the Orbscan API Using Bearer Tokens](https://docs.orbscan.com/authentication.md): Learn how to get an Orbscan API key, pass it in the Authorization header, and handle authentication errors like 401, 403, and 429 responses.
- [Traders: Wallets, Activity, and Positions on Polymarket](https://docs.orbscan.com/concepts/traders.md): Understand how Orbscan identifies Polymarket traders by wallet address, tracks their activity, and records positions and liquidity roles.
- [Markets: Prediction Market Structure on Polymarket](https://docs.orbscan.com/concepts/markets.md): Learn how Polymarket prediction markets are structured in Orbscan — identifiers, outcome tokens, categories, and how resolved markets work.
- [PnL and Performance Metrics for Polymarket Traders](https://docs.orbscan.com/concepts/pnl-metrics.md): Learn how Orbscan computes realized PnL, win rate, Sharpe ratio, and max drawdown for Polymarket traders from raw on-chain activity data.
- [Fetch and Analyze a Polymarket Trader's On-Chain Activity](https://docs.orbscan.com/guides/fetch-trader-profile.md): Pull a complete wallet trade history from Orbscan, filter by market or time range, and paginate through all results using cursor-based pagination.
- [Build a Polymarket Trader Leaderboard with Orbscan Data](https://docs.orbscan.com/guides/leaderboard.md): Fetch activity for multiple Polymarket wallets, compute net capital deployed per trader, and rank them to build a custom leaderboard.
- [Simulate Copy Trading Using Polymarket Activity History](https://docs.orbscan.com/guides/copy-trading.md): Replay a trader's historical buys and redeems with Orbscan data to estimate what your returns would have been if you had copied their positions.
- [Monitor Live Market Activity and Decode Transactions](https://docs.orbscan.com/guides/market-activity.md): Filter a wallet's trades to a specific market, decode any transaction into a plain-English summary, and poll for new activity as it arrives on-chain.
- [Orbscan Open API — Base URL, Format, and Pagination](https://docs.orbscan.com/api-reference/overview.md): Learn the base URL, response envelope, cursor pagination, and the three endpoints that make up the Orbscan Open API for Polymarket data.
- [Orbscan Open API Authentication Using Bearer Tokens](https://docs.orbscan.com/api-reference/authentication.md): Authenticate every Orbscan API request with a Bearer token. Learn how to obtain your API key and use it securely across curl, Python, and JavaScript.
- [Error Responses and Status Codes in the Orbscan API](https://docs.orbscan.com/api-reference/errors.md): Understand Orbscan's JSON error envelope, every HTTP status code you may encounter, and how to write robust error-handling logic in your integration.
- [Rate Limits and Request Quotas for the Orbscan API](https://docs.orbscan.com/api-reference/rate-limits.md): Understand Orbscan's per-key rate limit headers, what a 429 response means, and best practices for staying within your quota with backoff and caching.
- [GET /v1/trader/{address}/activity — Trader History](https://docs.orbscan.com/api-reference/endpoints/get-trader-activity.md): GET endpoint that returns paginated buy, sell, and redeem history for any Polymarket wallet, ordered newest-first with cursor pagination.
- [GET /v1/trader/{address}/deposits-withdrawals — Transfers](https://docs.orbscan.com/api-reference/endpoints/get-deposits-withdrawals.md): GET endpoint returning a paginated, newest-first combined list of USDC deposits and withdrawals for any Polymarket wallet address.
- [GET /v1/tx/{txHash} — Retrieve Transaction Details](https://docs.orbscan.com/api-reference/endpoints/get-transaction.md): GET endpoint that decodes a transaction hash into a plain-English summary and a breakdown of every individual on-chain fill it contains.