What Is ArbBets?
ArbBets is a third-party arbitrage tool built for prediction markets, with Kalshi listed among the supported platforms. It is catalogued under the cross-market category, suggesting its primary function is to surface pricing discrepancies across multiple prediction market venues simultaneously. Beyond that core description, public details about ArbBets are limited, so this overview is grounded strictly in what is publicly stated.
ArbBets is accessible via its listing on the Polymark directory at polymark.et. It is not an official Kalshi product and has no affiliation with Kalshi or the CFTC.
Where It Fits in the Kalshi Ecosystem
Kalshi is a CFTC-regulated prediction market exchange where participants trade event contracts settled in USD. Like any exchange, Kalshi can experience momentary price differences relative to other prediction market platforms covering the same or similar events. Arbitrage tools occupy a specific niche in this ecosystem: they attempt to identify those price gaps and help traders act on them before the gap closes.
ArbBets sits in this arbitrage tools category. Because Kalshi provides a REST and WebSocket Trading API, third-party tools can connect programmatically to retrieve market data and, where applicable, place orders. A tool like ArbBets would plausibly rely on such connectivity, though the specific integration method and depth of Kalshi API support are not detailed in the available public description.
Who Is ArbBets For?
Arbitrage tooling in prediction markets is generally oriented toward a more active, technically comfortable type of participant — someone who is already familiar with how event contracts work and who wants to systematically compare prices across platforms rather than relying on manual observation. Based solely on its stated purpose, ArbBets appears to be aimed at:
- Active prediction market traders who participate on multiple platforms and want to spot cross-market inefficiencies.
- Quantitatively minded users comfortable working with trading tools and interpreting spread data.
- Those already trading on Kalshi who want visibility into whether better prices exist elsewhere for a given event outcome.
This is not a tool described as beginner-facing or educational in nature.
Typical Use Cases
In the arbitrage tools category broadly, common use cases include monitoring bid/ask prices for the same or equivalent event across platforms, alerting a trader when a spread exceeds a threshold, and potentially facilitating faster execution across venues. Whether ArbBets offers all, some, or different variations of these functions is not specified in the available information. Prospective users should consult the product's own documentation or website for specifics on supported workflows.
Things to Weigh When Choosing an Arbitrage Tool
If you are evaluating ArbBets or any tool in this category for use with Kalshi, a few general considerations apply regardless of the specific product:
- Platform coverage: Confirm which prediction markets the tool actually monitors alongside Kalshi, as cross-market value depends entirely on breadth of coverage.
- Execution speed: Arbitrage opportunities can close quickly; understanding how the tool connects (real-time data feed vs. periodic polling) matters.
- Account and API requirements: Using Kalshi's API requires an account and appropriate API credentials. Check whether the tool requires separate account setup on other platforms.
- Pricing and access model: Public details on ArbBets' pricing structure are not available in the information provided here. Review the product's website directly.
- Regulatory considerations: All trading on Kalshi is subject to its CFTC-regulated framework. Ensure any tool you use aligns with applicable terms of service.
Bottom Line
ArbBets presents itself as a cross-market arbitrage tool that includes Kalshi among its supported prediction markets. For traders already active on Kalshi who also participate on other platforms, this category of tooling can provide a more systematic way to track price discrepancies. However, because public details about ArbBets' specific features, pricing, and integrations are limited, anyone seriously considering it should review the product's own materials directly before drawing conclusions about its fit for their needs.