Polymarket Order Book API

The Order Book endpoints expose central limit order book (CLOB) depth for Polymarket positions: the current bids and asks for a position, the order books across a whole market, and historical depth and spread.

Live depth

Get the live order book for a position, or every order book in a market.

History

Track depth and spread over time with order book history and spread history.

Market context

Resolve the market behind a book with get a market by condition ID, read its position metrics, or see the holders of a position.

Example

import { StructClient } from "@structbuild/sdk";

const client = new StructClient({ apiKey: "YOUR_API_KEY" });

const { data: book } = await client.orderBook.getOrderBook({ position_id: "0xabc..." });

const { data: spread } = await client.orderBook.getSpreadHistory({ position_id: "0xabc..." });

curl "https://api.struct.to/v1/polymarket/order-book?position_id=0xabc..." \
  -H "X-API-Key: YOUR_API_KEY"

Guide: CLOB Liquidity Markets Dashboard
SDK: Order Book namespace
Core concepts

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Events

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Polymarket Order Book API

Live depth

History

Market context

Example

​Live depth

​History

​Market context

​Example

​Related

Live depth

History

Market context

Example

Related