获取市场数据
所有数据接口都是公开的，无需 API 密钥或身份验证。使用 markets 接口查找市场并获取其 token ID：从
- cURL
- TypeScript
- Python
复制
curl "https://gamma-api.polymarket.com/markets?active=true&closed=false&limit=1"
复制
const response = await fetch(
"https://gamma-api.polymarket.com/markets?active=true&closed=false&limit=1"
);
const markets = await response.json();
const market = markets[0];
console.log(market.question);
console.log(market.clobTokenIds);
// ["123456...", "789012..."] — [Yes token ID, No token ID]
复制
import requests
response = requests.get(
"https://gamma-api.polymarket.com/markets",
params={"active": "true", "closed": "false", "limit": 1}
)
markets = response.json()
market = markets[0]
print(market["question"])
print(market["clobTokenIds"])
# ["123456...", "789012..."] — [Yes token ID, No token ID]
clobTokenIds 中保存一个 token ID——下单时需要用到。第一个 ID 是 Yes 代币，第二个是 No 代币。更多获取方式（如按 slug、标签或事件获取）请参阅获取市场数据。配置客户端
派生 API 凭证并初始化交易客户端：
- TypeScript
- Python
复制
import { ClobClient } from "@polymarket/clob-client";
import { Wallet } from "ethers"; // v5.8.0
const HOST = "https://clob.polymarket.com";
const CHAIN_ID = 137; // Polygon mainnet
const signer = new Wallet(process.env.PRIVATE_KEY);
// Derive API credentials (L1 → L2 auth)
const tempClient = new ClobClient(HOST, CHAIN_ID, signer);
const apiCreds = await tempClient.createOrDeriveApiKey();
// Initialize trading client
const client = new ClobClient(
HOST,
CHAIN_ID,
signer,
apiCreds,
0, // Signature type: 0 = EOA
signer.address, // Funder address
);
复制
from py_clob_client.client import ClobClient
import os
host = "https://clob.polymarket.com"
chain_id = 137 # Polygon mainnet
private_key = os.getenv("PRIVATE_KEY")
# Derive API credentials (L1 → L2 auth)
temp_client = ClobClient(host, key=private_key, chain_id=chain_id)
api_creds = temp_client.create_or_derive_api_creds()
# Initialize trading client
client = ClobClient(
host,
key=private_key,
chain_id=chain_id,
creds=api_creds,
signature_type=0, # Signature type: 0 = EOA
funder="YOUR_WALLET_ADDRESS", # Funder address
)
本示例使用 EOA 钱包（签名类型
0），由你的钱包自行支付 gas 费。代理钱包用户（类型 1 和 2）可以使用 Polymarket 的 gasless
relayer。详情请参阅身份验证中关于签名类型的说明。交易前，你的 funder 地址需要持有 USDC.e（用于购买结果代币）和 POL（用于支付 gas 费，仅 EOA 类型
0 需要）。下达订单
使用第 1 步获取的
token_id 下达限价单：- TypeScript
- Python
复制
import { Side, OrderType } from "@polymarket/clob-client";
// Fetch market details to get tick size and neg risk
const market = await client.getMarket("YOUR_CONDITION_ID");
const tickSize = String(market.minimum_tick_size); // e.g., "0.01"
const negRisk = market.neg_risk; // e.g., false
const response = await client.createAndPostOrder(
{
tokenID: "YOUR_TOKEN_ID", // From Step 1
price: 0.50,
size: 10,
side: Side.BUY,
orderType: OrderType.GTC,
},
{
tickSize,
negRisk,
},
);
console.log("Order ID:", response.orderID);
console.log("Status:", response.status);
复制
from py_clob_client.clob_types import OrderArgs, OrderType
from py_clob_client.order_builder.constants import BUY
# Fetch market details to get tick size and neg risk
market = client.get_market("YOUR_CONDITION_ID")
tick_size = str(market["minimum_tick_size"]) # e.g., "0.01"
neg_risk = market["neg_risk"] # e.g., False
response = client.create_and_post_order(
OrderArgs(
token_id="YOUR_TOKEN_ID", # From Step 1
price=0.50,
size=10,
side=BUY,
order_type=OrderType.GTC,
),
options={
"tick_size": tick_size,
"neg_risk": neg_risk,
},
)
print("Order ID:", response["orderID"])
print("Status:", response["status"])