Eggplant SDK for Python

Eggplant SDK is a highly performant Python SDK for Polymarket. It is a complete standalone client covering the full trading surface: order signing, posting, cancels, relayer operations, and streaming — with no dependency on the official SDK.

It supports all four Polymarket signature types (EOA, PROXY, GNOSIS_SAFE, POLY1271), gasless negRisk merge/split/convert/redeem operations through the relayer, and lenient order book parsing with Decimal tick sizes for financial precision. Market and user WebSocket channels ship with a liveness protocol, and the whole client is async-first on httpx and websockets.

Install with pip install eggplant-sdk (Python 3.11+). It is the Python sibling of eggplant-sdk-rs — the two share one API shape and one set of golden test vectors.