polynode 0.10.8

Python SDK for the PolyNode real-time prediction market data platform

polynode

Python SDK for the PolyNode real-time prediction market data platform.

New in v0.10.8: POLY_1271 V2 order signatures now normalize the ERC-7739 TypedDataSign recovery byte to Ethereum v=27/28 for on-chain ERC-1271 validation.

In v0.10.7: Polymarket V2 deposit-wallet trading fixes. ensure_ready() detects deployed POLY_1271 wallets correctly, V2 type-3 orders use the deposit wallet as both maker and signer, and existing local credentials can be repaired by rerunning ensure_ready().

Install

pip install polynode

For trading support:

pip install polynode[trading]

Quick Start

REST API

from polynode import PolyNode

with PolyNode(api_key="pn_live_...") as pn:
    status = pn.status()
    markets = pn.markets(count=10)
    settlements = pn.recent_settlements(count=5)

Sports and Online Context

from polynode import PolyNode

with PolyNode(api_key="pn_live_...") as pn:
    state = pn.sports_game_state(
        "nba-cle-nyk-2026-05-31",
        price_limit_tokens=20,
    )

    context = pn.sports_game_context(
        "nba-cle-nyk-2026-05-31",
        sources=["online"],
        query_set="injuries",
        max_queries=2,
        max_per_query=5,
        include_state=True,
    )

    web = pn.search_online(
        "Cavaliers Knicks injury news",
        max_results=5,
    )

Async REST

import asyncio
from polynode import AsyncPolyNode

async def main():
    async with AsyncPolyNode(api_key="pn_live_...") as pn:
        status = await pn.status()
        markets = await pn.markets(count=10)

asyncio.run(main())

WebSocket Streaming

import asyncio
from polynode import AsyncPolyNode

async def main():
    async with AsyncPolyNode(api_key="pn_live_...") as pn:
        sub = await pn.ws.subscribe("settlements").min_size(1000).send()

        async for event in sub:
            print(event.event_type, event.market_title, event.taker_price)

asyncio.run(main())

Orderbook

import asyncio
from polynode import OrderbookEngine

async def main():
    engine = OrderbookEngine(api_key="pn_live_...")
    await engine.subscribe(["token_id_1", "token_id_2"])

    engine.on("ready", lambda: print(f"Tracking {engine.size} books"))
    engine.on("update", lambda u: print(f"{u.asset_id}: {engine.midpoint(u.asset_id)}"))

asyncio.run(main())

Trading

import asyncio
from polynode.trading import PolyNodeTrader, TraderConfig, OrderParams, ExchangeVersion

async def main():
    # Default is V1 (USDC.e). Pass exchange_version=ExchangeVersion.V2 for the V2 CLOB
    # (pUSD collateral, clob-v2.polymarket.com, builder attribution).
    trader = PolyNodeTrader(TraderConfig(
        polynode_key="pn_live_...",
        exchange_version=ExchangeVersion.V2,
    ))
    status = await trader.ensure_ready("0xYourPrivateKey...")

    result = await trader.order(OrderParams(
        token_id="...",
        side="BUY",
        price=0.55,
        size=100,
        builder="0x<your_builder_code_bytes32>",  # V2 only; omit for V1
    ))
    print(result)

    trader.close()

asyncio.run(main())

For the V2 order flow — required approvals, EIP-712 struct, fee math, and common failure modes — see polynode/trading/V2_ORDER_FLOW.md in the installed package.

Documentation

Full docs at docs.polynode.dev