USDC.e:      0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174  <- Use this
Native USDC: 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359  <- Wrong token

# Wrong - will fail with "invalid amounts"
order = OrderArgs(price=0.45, size=100.123, side=BUY, token_id=token_id)

# Correct
order = OrderArgs(price=0.45, size=100.12, side=BUY, token_id=token_id)

# Wrong - using EOA address
client = ClobClient(host, key, chain_id=137, signature_type=1, funder=eoa_address)

# Correct - using proxy address (from Polymarket profile)
client = ClobClient(host, key, chain_id=137, signature_type=1, funder=proxy_address)

from py_clob_client.client import ClobClient
from py_clob_client.clob_types import OrderArgs, OrderType
from py_clob_client.order_builder.constants import BUY
import requests

# 1. Initialize and authenticate
client = ClobClient(
    host="https://clob.polymarket.com",
    key="YOUR_PRIVATE_KEY",
    chain_id=137,
    signature_type=0,  # 0=EOA, 1=Proxy, 2=Safe
    funder="YOUR_WALLET_ADDRESS"
)
client.set_api_creds(client.create_or_derive_api_creds())

# 2. Discover markets (Gamma API - no auth needed)
events = requests.get("https://gamma-api.polymarket.com/events", params={
    "active": "true", "closed": "false", "limit": 10
}).json()
market = events[0]["markets"][0]
token_id = market["clobTokenIds"][0]  # YES token

# 3. Place order (CLOB API - authenticated)
order = client.create_order(OrderArgs(
    price=0.45, size=100.0, side=BUY, token_id=token_id
))
response = client.post_order(order, OrderType.GTC)
print(f"Order: {response.get('orderID')}")