API CLOB de Polymarket

The Polymarket CLOB (Central Limit Order Book) API is the official gateway for developers to interact with Polymarket’s hybrid-decentralized exchange.It combines the speed of off-chain order matching with the security of on-chain settlement on the Polygon blockchain. This API is the primary tool for market makers, algorithmic traders, and developers building third-party interfaces, offering a professional-grade environment similar to a centralized exchange (CEX) API.

The architecture is divided into three distinct domains: the Gamma API (for market metadata and discovery), the Data API (for user activity), and the CLOB API (for the actual trading engine).It utilizes a non-custodial model where orders are EIP-712 signed messages.This ensures that while the matching engine is efficient and fast, the user always retains control over their funds. The CLOB API provides high-fidelity data, including midpoints, spreads, and full order book depth, making it the "source of truth" for event pricing.

Unlike third-party APIs, the CLOB API is directly integrated with Polymarket’s trading infrastructure, ensuring accuracy, real-time execution, and full control over trading operations.