Comparisons

Side-by-side comparisons for prediction-market bot developers.

• Binance only vs Multi-exchange median

  Binance only vs multi-exchange median as price signal

  Binance is faster and simpler; multi-exchange median is more robust. Chainlink RTDS uses a median. Here is why v4 follows the same approach.

• Build it yourself vs Buy from predtools

  Build vs buy — prediction-market trading bot

  Time investment, maintenance debt, and edge erosion: comparing building a Polymarket bot from scratch versus starting from predtools.

• FOK (taker) vs GTC (maker)

  FOK vs GTC orders on Polymarket — taker vs maker

  FOK fills immediately or cancels; GTC rests on the book until filled. The choice determines your fee side, fill certainty, and adverse-selection exposure.

• Maker strategy vs Taker strategy

  Maker strategy vs taker strategy on Polymarket

  Maker earns rebates but faces adverse selection. Taker pays fees but controls timing. A worked PnL example at $0.50 mid shows the real cost difference.

• Node 22 vs Bun

  Node 22 vs Bun for trading bots

  Bun is faster on startup and smaller on deps, but ecosystem compatibility with clob-client, ethers, and ws is the deciding factor. Node 22 wins for now.

• CLOB API vs Gamma API

  Polymarket CLOB API vs Gamma API — what each one does

  CLOB handles orderbook and trading; Gamma handles market discovery and metadata. Both are usually needed. Here is how they divide responsibilities.

• Polymarket vs Kalshi

  Polymarket vs Kalshi — for bot developers

  Comparison of Polymarket and Kalshi from a programmatic-trading perspective: API access, fees, markets, settlement, jurisdiction.