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Polymarket Arbitrage Tools and Bots

Research cross-market price differences and potential arbitrage involving Polymarket. Similar questions can have different settlement rules and trading constraints.

How to choose arbitrage

How to choose

Account for fees, fill risk, capital requirements and incompatible outcomes before treating a spread as executable.

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19 tools · 1–12 shown

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ArbBets entry page with a cross-venue YES/NO pricing example.
ArbBets3.5Editorial
Data API

Scan cross-venue price differences, inspect the proposed legs and costs, and access opportunity data through a paid API.

  • Data coverage Cross-venue matches
  • Access Web · API
Claw Arbs: Provider walkthrough of automated orders and strategy analysis.
Claw Arbs3.5Editorial
Trading bot

Run local strategy agents that compare venue prices, simulate trades and automate two-leg arbitrage or one-sided value betting.

  • Trading mode Paper · Live automation
  • Access Windows · macOS · Linux
Crosswire: Prediction-market API and request example.
Crosswire3.5Editorial
Data API

Check whether Polymarket and Kalshi contracts settle the same way before comparing their prices.

  • Data coverage Resolution evidence · Cross-venue matches
  • Access API · MCP
OddsPipe: Cross-venue market and spread API overview.
OddsPipe3.5Editorial
Data API

Find matched Polymarket and Kalshi contracts, filter match confidence and query price differences through REST or Python.

  • Data coverage Markets · Prices · Cross-venue matches
  • Access API
Pmip — product overview
PMIP3.5Editorial
Analytics

Compare venue prices and settlement rules, then investigate the gap with wallet flow and news.

  • Trading mode Read-only
  • Access Web · Discord · Email
Prediction Hunt: Prediction.com market comparison and smart-money dashboard.
Prediction Hunt3.5Editorial
Trading terminal

Compare prediction-market odds, browse smart-money and arbitrage views, and use calculators, paper trading and a developer API at Prediction.com.

  • Trading mode Paper
  • Access Web · API
Prediction Pilot — product overview
Prediction Pilot3.5Editorial
Research tool

Research Kalshi markets in chat, backtest rules, monitor positions and cross-check Polymarket prices without delegating trade execution.

  • Trading mode Read-only
  • Access Web
Predkit — product overview
predkit3.5Editorial
Data API

Read normalized markets, matched cross-venue pairs and arbitrage/structural alerts through a REST API and resumable event stream.

  • Data coverage Markets · Prices · Order books · Cross-venue matches
  • Access API · MCP
Resolve Markets — Find what's worth trading across 90,000+ contracts
Resolve Markets3.5Editorial
Analytics

Use public market screeners, fee-aware contract comparisons and election maps, then add account-based history, alerts or beta trading access.

  • Access Web
Spreadcore — Forks live for seconds. You can't watch 10 tabs.
SpreadCore3.5Editorial
Trading terminal

Compare Polymarket sports prices with bookmaker odds, calculate hedge stakes and manage the Polymarket leg from one terminal.

  • Trading mode Manual
  • Access Web · Telegram
Alphapoly (Chainstack): Pipeline stages and local application setup.
Alphapoly (Chainstack)3.0Editorial
Analytics

Run a local application that discovers logical relationships between Polymarket contracts, builds covering pairs and tracks paired positions.

  • Access Web
EventArb: Calculator example using 45¢ YES, 50¢ NO, $1,000 capital and a 30-day term. Illustrative inputs, not a current market offer.
EventArb3.0Editorial
Analytics

Calculate an event-contract opportunity across venues using contract duration, capital, market type and displayed prices.

  • Access Web