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py-clob-client

PyPI

Python client for the Polymarket CLOB. Full API documentation can be found here.

Installation

pip install py-clob-client

Intended for use with Python 3.9

Requisites

Allowances

The correct token allowances must be set before orders can be placed. The following mainnet (Polygon) allowances should be set by the funding (maker) address. For testnet addresses and additional documentation please refer to the API documentation.

token(s) spender description
0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174 0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982E allow the CTF Exchange contract to transfer user's usdc
0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174 0xC5d563A36AE78145C45a50134d48A1215220f80a allow the Neg Risk CTF Exchange contract to transfer user's usdc
0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174 0xd91E80cF2E7be2e162c6513ceD06f1dD0dA35296 allow the Neg Risk Adapter contract to transfer user's usdc
0x4D97DCd97eC945f40cF65F87097ACe5EA0476045 0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982E allow the CTF Exchange contract to transfer user's conditional tokens
0x4D97DCd97eC945f40cF65F87097ACe5EA0476045 0xC5d563A36AE78145C45a50134d48A1215220f80a allow the Neg Risk CTF Exchange contract to transfer user's conditional tokens
0x4D97DCd97eC945f40cF65F87097ACe5EA0476045 0xd91E80cF2E7be2e162c6513ceD06f1dD0dA35296 allow the Neg Risk Adapter contract to transfer user's conditional tokens

See this gist for a an example of how to set these allowances for an account using python.

Usage

import os
from py_clob_client.constants import POLYGON
from py_clob_client.client import ClobClient
from py_clob_client.clob_types import OrderArgs
from py_clob_client.order_builder.constants import BUY

host = "https://clob.polymarket.com"
key = os.getenv("PK")
chain_id = POLYGON

# Create CLOB client and get/set API credentials
client = ClobClient(host, key=key, chain_id=chain_id)
client.set_api_creds(client.create_or_derive_api_creds())

# Create and sign an order buying 100 YES tokens for 0.50c each
resp = client.create_and_post_order(OrderArgs(
    price=0.50,
    size=100.0,
    side=BUY,
    token_id="71321045679252212594626385532706912750332728571942532289631379312455583992563"
))

print(resp)

See examples for more.