Claw Arbs introduces the first arbitrage platform that executes both legs of a trade automatically across Kalshi, Polymarket, and Cloudbet, targeting the growing pricing gaps between regulated and decentralized prediction markets.
-- Claw Arbs has launched automated arbitrage software that detects and executes price discrepancies across prediction markets and sportsbooks in real time. The platform connects to Kalshi, Polymarket, and Cloudbet through direct API integrations, monitoring prices simultaneously and placing orders on both sides of a trade when a profitable spread appears. Users can also calibrate any additional bookmaker to work alongside these venues.
The software addresses a gap in the current market. Existing arbitrage betting software such as OddsJam, BetBurger, and RebelBetting scan for pricing differences and alert users, but execution remains manual. Traders must open multiple browser tabs, enter orders by hand, and hope the prices hold long enough to complete both sides. In markets where edges can close within seconds, manual execution often means missed opportunities.
Claw Arbs removes that bottleneck by handling both detection and execution. When two venues price the same event differently enough to produce a profit after accounting for fees and slippage, the system places both orders automatically.
A Growing Market
Prediction markets have experienced rapid growth since the 2024 US election cycle. Polymarket processed over $3.5 billion in trading volume on election contracts alone, while Kalshi, the first CFTC-regulated event contract exchange, expanded into sports and entertainment markets. Combined global prediction market volume now exceeds $10 billion annually.
This growth has also increased the frequency of cross-venue pricing discrepancies. Kalshi serves US retail traders with USD settlement. Polymarket operates on the Polygon blockchain with USDC settlement and attracts a global, crypto-native audience. Different user bases, different fee structures, and different settlement mechanics mean prices on the same event regularly diverge between platforms.
"The structural differences between a CFTC-regulated exchange and a decentralized crypto market create persistent pricing gaps," said Ned, Founder of Claw Arbs. "These platforms attract different traders with different information and risk tolerances. That divergence is what drives arbitrage opportunities across venues."
Limit Orders and Odds Sniping
One of the platform's core features is the ability to place limit orders on any connected bookmaker. Traders set a target price on any market at any venue, and the system monitors odds in real time. The moment the price hits the specified level, Claw Arbs executes the order automatically.
This is particularly useful for finding arbitrage bets that do not yet exist. A trader might see that an arb would be profitable if one side dropped by two cents. Rather than watching the screen and waiting, the limit order sits in the system and fires the instant the price moves. This approach captures edges that would be impossible to catch manually, especially during live events when odds shift rapidly.
Limit orders also work independently from the arbitrage engines, making them useful for value betting and hedging existing positions.
Venue Calibration
Claw Arbs does not treat all bookmakers the same way. Each connected venue has its own fee model, its own odds format, its own API behavior, and its own liquidity profile. The platform normalizes all of this into a unified probability space so that prices from every venue can be compared accurately.
Users can calibrate each venue individually. This includes setting fee tiers (Kalshi charges a percentage on winnings that scales with volume), accounting for gas costs on blockchain-based platforms, and adjusting slippage buffers based on observed market depth. The platform then uses these calibrated parameters in every edge calculation, ensuring that the profit numbers displayed are net of all real-world costs.
The system is designed so that any bookmaker or exchange can be added and configured with its own parameters. Traders are not locked into a fixed set of platforms. As new prediction markets and sportsbooks emerge, they can be calibrated and integrated alongside existing venues.
Security and Privacy
All user credentials and API keys are stored locally on the user's own machine, encrypted at rest. Claw Arbs does not transmit or store login information on any external server. This ensures that exchange API keys and bookmaker credentials never leave the user's device.
How the Engines Work
The platform ingests real-time data via WebSocket connections, maintaining a central price cache with ~5ms update latency. Each potential trade passes through a 14-step validation pipeline that checks edge thresholds, market depth, position exposure, and execution parameters before any order is placed.
Claw Arbs runs two parallel arbitrage engines. The first compares prices between Kalshi and Polymarket on the same events, looking for cases where buying opposite sides across venues costs less than the guaranteed payout. The second engine compares prediction market prices against sharp sportsbook odds, using the sharp line as a reference to identify when a prediction market is mispriced.
Both engines share a risk management layer that tracks open positions and prevents the system from taking additional exposure on any event where a previous trade has left an unhedged side. A paper trading mode allows users to run the full system against live market data with simulated orders before committing real capital.
Additional Resources
Claw Arbs publishes a suite of online calculators at clawarbs.com/tools, covering odds conversion, expected value, Kelly criterion position sizing, hedge calculations, and arbitrage detection. The company also maintains an educational blog covering arbitrage strategy and prediction market mechanics.
About Claw Arbs
Claw Arbs is automated arbitrage software for prediction markets and sportsbooks. The platform supports Kalshi, Polymarket, and Cloudbet with direct API integrations, plus user-configurable calibration for any additional bookmaker. All credentials are stored locally and encrypted. The software is currently in free trial with plans to launch paid subscriptions in summer 2026.
Contact Info:
Name: Ned
Email: Send Email
Organization: Claw Arbs
Website: https://clawarbs.com
Release ID: 89188452
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