How to build a Polymarket bot
A practical outline for building a bot on Polymarket’s order book (CLOB), with links to the official docs and to public Polymarket bots you can study.
Last updated . Facts below come from the official documentation linked at the end, checked Oct 13, 2026. This is not financial advice; check that the platform is available to you and read its terms.
Steps
- Read the developer docs. Polymarket’s docs at docs.polymarket.com cover market data and the CLOB trading API.
- Pick an official client. The docs show TypeScript and Python SDKs. Polymarket also publishes py-clob-client and clob-client on GitHub.
- Authenticate with your wallet. Trading clients are created with your wallet address and a signer key. Keep keys in environment variables, never in code.
- Fetch a market and its outcome IDs. Look up the market, choose an outcome, and use its trading identifier when placing orders.
- Place small orders and wait for settlement. The docs note that matched trades settle on-chain asynchronously, so wait for settlement before reading positions.
- Study working code. The public examples below include Polymarket’s own market-maker keeper, agent frameworks and data pipelines.
Public examples to learn from (47 on this site)
- Prediction market analysis framework and dataset (Data & analytics; Python, Parquet)
- Polymarket Agents framework (Forecasting agents; Python, LLMs)
- CloddsBot autonomous trading agent (Forecasting agents; TypeScript, LLMs)
- poly_data Polymarket data pipeline (Data & analytics; Python)
- PMXT: 'CCXT for prediction markets' (Data & analytics; TypeScript)
- 'Nothing Ever Happens' meme bot (Other; Python)
- Weather temperature market bot (News & event trading; Python, weather forecasts)
- Awesome Prediction Market Tools list (Other; list)
- Rust copy-trading toolkit (Copy trading & alerts; Rust)
- Rust Polymarket–Kalshi arbitrage engine (Arbitrage; Rust)
- Polymarket's reference market-maker keeper (Market making; Python, Polymarket CLOB)
- PolyWeather weather-quant bot (News & event trading; Python)
FAQ
Does Polymarket have an API for bots?
Yes. Polymarket documents a CLOB (central limit order book) API with official TypeScript and Python clients.
Do Polymarket trades settle on-chain?
Yes. Polymarket’s docs say matched trades settle on-chain asynchronously.
Where can I see example Polymarket bots?
This site lists public Polymarket bots, agents and tools, each linked to its source.
Official documentation
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