Poly-Maker

Market MakingMedium risk

Open-source market-making bot for Polymarket. Quotes both sides of the book over WebSockets with configurable spreads, position merging and risk controls. Shared by its author as a reference implementation, not a turnkey money-maker.

Poly-Maker
Open source · GitHub
PriceFree
Risk levelMedium
Markets4
CustodyNon-custodial

Overview

Open-source market-making bot for Polymarket. Quotes both sides of the book over WebSockets with configurable spreads, position merging and risk controls. Shared by its author as a reference implementation, not a turnkey money-maker.

How it works

  • Provides liquidity by maintaining bids and asks on both sides of a Polymarket book.
  • Monitors order books over WebSockets and adjusts quotes with configurable spreads and sizing.
  • Manages inventory with position tracking, risk controls and automated merging.
  • Self-hosted from source — shared by its author as a reference implementation rather than a turnkey money-maker.

Supported markets

  • Any liquid Polymarket book
  • Politics & elections
  • Crypto markets
  • Sports moneylines
Freeopen-source

Free & open-source (MIT). Self-host from full source.

Get Poly-Maker
  • Full Python + JS source (MIT license)
  • Real-time WebSocket order books
  • Two-sided quoting with configurable spreads
  • Automated position merging
  • Google Sheets parameter config
Author
warproxxx
Risk level
Medium risk
Added
Today