Get order book

Retrieves the order book summary for a specific token ID. Includes bids, asks, market details, and last trade price.

GET /book

Get order book

cURL

curl --request GET \
  --url https://clob.polymarket.com/book

import requests

url = "https://clob.polymarket.com/book"

response = requests.get(url)

print(response.text)

const options = {method: 'GET'};

fetch('https://clob.polymarket.com/book', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://clob.polymarket.com/book",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://clob.polymarket.com/book"

	req, _ := http.NewRequest("GET", url, nil)

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://clob.polymarket.com/book")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://clob.polymarket.com/book")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)

response = http.request(request)
puts response.read_body

200

{
  "market": "0x1234567890123456789012345678901234567890",
  "asset_id": "0xabc123def456...",
  "timestamp": "1234567890",
  "hash": "a1b2c3d4e5f6...",
  "bids": [
    {
      "price": "0.45",
      "size": "100"
    },
    {
      "price": "0.44",
      "size": "200"
    }
  ],
  "asks": [
    {
      "price": "0.46",
      "size": "150"
    },
    {
      "price": "0.47",
      "size": "250"
    }
  ],
  "min_order_size": "1",
  "tick_size": "0.01",
  "neg_risk": false,
  "last_trade_price": "0.45"
}

{
  "error": "Invalid token id"
}

{
  "error": "No orderbook exists for the requested token id"
}

{
  "error": "error getting the orderbook"
}

Query Parameters

token_id · string · required

Token ID (asset ID)

Response

200

application/json

Successfully retrieved order book

market · string · required

Market condition ID

Example:

"0x1234567890123456789012345678901234567890"

asset_id · string · required

Token ID (asset ID)

Example:

"0xabc123def456..."

timestamp · string · required

Timestamp of the order book snapshot

Example:

"1234567890"

hash · string · required

Hash of the order book summary

Example:

"a1b2c3d4e5f6..."

bids · object[] · required

List of bid orders (sorted by price descending)

Show child attributes

asks · object[] · required

List of ask orders (sorted by price ascending)

Show child attributes

min_order_size · string · required

Minimum order size

Example:

"1"

tick_size · string · required

Minimum price increment (tick size)

Example:

"0.01"

neg_risk · boolean · required

Whether negative risk is enabled for this market

Example:

false

last_trade_price · string · required

Last trade price

Example:

"0.45"