Poly-Maker vs PolyMM
Poly-Maker and PolyMM are both filed under Market Making and Sports Trading and 1 more. Both are automated bots, and both are free. Below: the facts side by side, where the two actually differ, and when each one is the better pick.
Open-source Python bot for Polymarket's sports and esports markets, released by the person who ran it.
Compared with Poly-MakerAt a glance
| Fact | Poly-Maker | PolyMM |
|---|---|---|
| Type | Automated bot | Automated bot |
| Category | Market Making | Market Making |
| Also listed in | Sports Trading, Politics & Elections, Crypto Markets | Sports Trading, Arbitrage, Politics & Elections, Hedging, Weather Markets |
| Pricing | Free | Free |
| Price | open-source | free · MIT |
| Risk rating | Medium risk | High risk |
| Markets | Any liquid Polymarket book, Politics & elections, Crypto markets and 1 more | Polymarket sports and esports match markets and Bookmaker odds through the-odds-api, or a source you supply |
| Source | Open-source | Open-source |
| Runs in Telegram | No | No |
| Listed since | Jul 3, 2026 | Nov 5, 2026 |
Highlighted rows differ
Key differences
- They cover different markets: Poly-Maker lists Any liquid Polymarket book and Politics & elections and 2 more, PolyMM lists Polymarket sports and esports match markets and Bookmaker odds through the-odds-api, or a source you supply.
- Poly-Maker is rated medium risk, PolyMM high risk.
- Only Poly-Maker is filed under Crypto Markets, and only PolyMM is filed under Arbitrage and Hedging and 1 more.
- Poly-Maker has been listed since Jul 3, 2026; PolyMM joined on Nov 5, 2026.
Choose Poly-Maker if…
- you trade Any liquid Polymarket book and Politics & elections and 2 more
- you prefer the lower-risk profile (medium vs high)
- your focus is Crypto Markets
Choose PolyMM if…
- you trade Polymarket sports and esports match markets and Bookmaker odds through the-odds-api, or a source you supply
- your focus is Arbitrage and Hedging and 1 more
What Poly-Maker does
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.
Features- Full Python + JS source (MIT license)
- Real-time WebSocket order books
- Two-sided quoting with configurable spreads
- Automated position merging
- Google Sheets parameter config
- 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.
What PolyMM does
Open-source Python bot for Polymarket's sports and esports markets, released by the person who ran it. It strips the margin from sportsbook odds to get a fair price, posts limit orders a cent above the best bid where the gap is large enough, and when one side fills, tries to buy the other outcome so both sides cost under $1. The code is free under the MIT licence, and its author says it is a foundation to build on, not a plug-and-play earner: the private odds scrapers are left out and it needs your own wallet, a paid the-odds-api key and a Supabase project.
Features- De-vigs bookmaker odds into a fair probability for each side
- Quotes a cent above the best bid when the edge clears a minimum, 7% in the pre-match config
- Hedges a fill by placing the opposite outcome, to hold both sides for under $1 a share
- Fill and order-book websockets, with an edge-lost event that cancels resting orders when fair value moves
- Starts at 10 shares per order
- Most bot repos come with a promise. This one comes with a public wallet and an autopsy. The author's write-ups put the January to April 2026 run at about $5k net: +$8,293 on completed arbitrages and -$3,184 on the forced directional bets left when a hedge did not fill. We checked the wallet @b00k13 against Polymarket's data: position P&L stood at $4,960 on May 1, 2026, matching the $4,960.77 on the author's profile screenshot. The total was $5,904 on Nov 5, 2026, but the author says the bot running now is a Rust rewrite, which is not in this repo.
- The candid part is why it faded. Those directional bets each carried at least a 7% edge on paper and still lost, and the author traces that to adverse selection: odds up to 30 minutes old meant the edge was often gone by the time a quote filled. In the author's words the bot “got too slow” to defend its edge, and running it unchanged means donating to quicker bots. The scrapers that the author calls half the edge are not included, so what you get is the stale-odds version of the problem, unless you bring faster data.
- Treat the code as a study piece. The author says it was built almost entirely with AI in spare time and that bugs are likely. It ships with a test suite, but the history is three commits, the last from Aug 16, 2026, so it is a one-off release rather than a maintained project; the repo has 117 stars and 39 forks. The README gives a 5% default minimum edge, while the config sets 7% before a match, 8% for live play and 5¢ only for a separate weather-market spread bot.
More head-to-heads
Every fact on this page is taken from the two listings as their authors publish them; POLBOTS verifies neither performance nor claims and has no stake in either tool. Nothing here is financial advice.