ArbBets
ArbBets finds cross-market arbitrage opportunities and helps traders size delta-neutral trades across prediction markets and perp DEXs.
ArbBets Polymarket Arbitrage Scanner And Trading API
What is ArbBets?
ArbBets is a prediction market arbitrage tool for finding fee-adjusted trades across Polymarket, Kalshi, and Opinion, with delta neutral strategies, calculators, alerts, and an API.
Ready to try ArbBets?
Open the official site and get started in a few clicks.
ArbBets Overview
ArbBets helps traders find prediction market arbitrage across Polymarket, Kalshi, and Opinion. It compares prices for the same event and finds cases where buying YES on one platform and NO on another costs less than $1.
The tool checks orderbook depth, fees, spread size, contract amounts, and estimated profit. Traders can enter a stake in the arbitrage calculator, review both trade legs, and place the orders themselves. It also has funding rate arbitrage for perp DEXs, sports betting tools, a weather edge finder, a +EV scanner, and a REST API for trading bots.
ArbBets suits active prediction market traders, bot builders, and users with accounts on several venues. Its main difference is the mix of fee-adjusted returns, orderbook-based sizing, live alerts, and API access in one product. A delayed scanner and demo are free to test, while the live scanner requires a paid plan. Traders still need to check market rules, fees, slippage, and local access before placing both sides.
ArbBets Key features
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Cross-Market Scanner
Finds matching events across Polymarket, Kalshi, and Opinion. It compares prices, checks orderbook depth, and shows possible fee-adjusted spreads.
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Profit Calculator
Enter a stake to see the contract count, amount for each leg, and expected profit after fees.
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Funding Rate Arbitrage
Finds delta-neutral trades across perpetual DEXs by pairing long and short positions where funding rates differ.
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Sports Arbitrage Alerts
Tracks live game lines and props across major sportsbooks. Alerts help users spot price gaps between books.
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Weather Edge Finder
Compares National Weather Service forecasts with weather market prices on Kalshi and Polymarket.
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Odds And Value Tools
The odds screener compares Polymarket and Kalshi prices side by side. The Sharp Money Scanner and +EV finder help identify possible value plays.
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ArbBets REST API
Provides live arbitrage data, full orderbooks, fee-adjusted returns, and stake sizing for custom bots. API access uses keys, credits, and rate limits.
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Polymarket Market Maker
The self-hosted LR MM agent places quotes on Polymarket for liquidity rewards. Users keep control of the wallet, server, and risk limits through a local dashboard.
ArbBets Fees
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Basic plan Basic costs 59 dollars per month, 39 dollars per week, or 490 dollars per year.
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Pro plan Pro costs 149 dollars per month, 69 dollars per week, or 990 dollars per year.
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Premium plan Premium costs 299 dollars per month, 119 dollars per week, or 2,990 dollars per year, with 5,000 API credits per month.
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Annual billing Annual billing saves about 20 percent, and subscriptions have no refunds.
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Venue costs Venue costs are separate, including Kalshi taker fees modeled with a 7 percent formula plus any Polymarket fees, gas, and slippage.
ArbBets Supported networks
Polygon
Hyperliquid
How to use ArbBets
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Open the free tools
Visit the ArbBets website and open the delayed scanner sample or cross market demo. You can use both without an account.
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Create an account
Sign up with your email address or Google account, then sign in to ArbBets.
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Choose a plan
Select Basic, Pro, or Premium and choose weekly, monthly, or yearly billing. The live prediction market scanner requires Pro, while the API and market making agent require Premium.
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Open the scanner
Open Cross Markets Arbitrage and filter results by category, platform, and spread percentage. Turn on the arbitrage-only filter to show matched markets with a combined price below one dollar.
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Set your stake
Open the calculator for a market and enter the amount you want to invest. Check the contract count, amount for each leg, fees, and expected profit.
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Check the rules
Read the resolution rules for both contracts and confirm that they settle on the same event outcome. Check venue access, available liquidity, slippage, and fees before trading.
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Place both trades
Buy the recommended YES and NO contracts on their respective venues as soon as possible. Confirm both orders filled at prices close to the calculator estimates.
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Connect the API
If you have Premium, copy your API key from the dashboard and use it with your own bot. Call the arbs endpoints to retrieve live opportunities, orderbooks, fee adjusted returns, and stake sizes.
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Set up market making
If you have Premium, install the LR MM agent with Docker and Compose, set a dashboard password, and connect your Polymarket account. Add your risk limits, keep USDC on Polygon with POL for gas, and start with a small cap.
ArbBets Demo video
ArbBets Screenshots
ArbBets User Reviews
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Best Tools for Prediction Market Arbitrage. Bookmark this list, the number of prediction markets is growing every day. 1. @ArbBets20, a platform for identifying arbitrage and positive expected value (EV) opportunities across prediction markets
View on X ↗ -
MUST-HAVE TOOLS FOR PREDICTION MARKETS TRADERS. @ArbBets20 scans Polymarket, Kalshi, and Opinion simultaneously via API
View on X ↗ -
I know. Hard to do too much of that in Ontario, Canada. Don't have Kelshi, etc.
View on X ↗
ArbBets Review
Pros
- It compares Polymarket, Kalshi, and Opinion prices for matching events.
- It accounts for order book depth, fees, stake size, and expected profit.
- The free sample, demo, and calculators work without a paid plan.
- Its REST API returns trade legs, prices, amounts, and fee adjusted profit.
- The self hosted market making bot keeps wallet keys and risk limits on your machine.
- It also scans funding rate spreads across several perpetual exchanges.
Cons
- The scanner costs $149 per month, while API access costs $299 per month, and subscriptions have no refunds.
- The median fee-adjusted return is about 2%, so slippage, fees, and locked capital can erase much of the edge.
- Matching events across venues can be misleading when their resolution rules differ.
- Regional access limits can block users from Polymarket or Kalshi.
- The market-making bot has proprietary code and no public security audit.
- The free sample still shows data last updated in June 2026.
Our verdict
ArbBets is a useful cross-market arbitrage scanner for Polymarket, Kalshi, and Opinion, with fee-adjusted returns, orderbook sizing, calculators, and an API for bots. Its weak spot is the price: the live scanner starts at $149 per month, while typical spreads are small enough for fees, slippage, settlement delays, and different market rules to erase the edge. The market-making bot also trades real funds, has no public security audit, and the free sample data looks stale. Verdict: recommended for experienced traders and bot builders with enough capital to act fast, but a poor fit for beginners or small bankrolls.
Is ArbBets safe & legit?
ArbBets was made by engineer and founder Carlos Blocks in 2024, and it has some recognition in the Polymarket community, though independent user feedback remains limited. No major scam reports are known, but the lack of a registered company, public audit, and refunds raises some concerns. The market making bot uses real funds, so users face execution, slippage, resolution, and security risks.
X account intel @ArbBets20
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Based in United States
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Joined X September 2024 2 years ago
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Username changes 3 renames last on Aug 7, 2025
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Signup source Web
Public profile signals from X. Use as one input alongside other due-diligence.
Security scan checked Nov 5, 2026
- Google Web Risk Not flagged
- MetaMask Not flagged
- Phantom Not flagged
- ScamSniffer Not flagged
- EtherAddressLookup Not flagged
- Keplr Wallet Not flagged
Domain getarbitragebets.com checked against Google's lists of unsafe sites and public crypto wallet blacklists.
This is an automated check, not a security audit. The summary is drafted from the project's own pages and public posts, and the domain is looked up on public blocklists. Nothing here is financial advice: only put in money you can afford to lose. How we review listings
ArbBets FAQ
What does ArbBets do?
Does ArbBets place trades for me?
How much does ArbBets cost?
Can I try ArbBets for free?
Are ArbBets arbitrage profits guaranteed?
ArbBets Updates
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This is a great opportunity for arbitrage traders.
- 1 reposts
- 3 likes
- 2.1K views
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Arbitrage is the easiest way to trade tokenized equities.
Try the @ArbBets20 arbitrage data.- 2 replies
- 2 reposts
- 6 likes
- 3.2K views
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Best Tools for Prediction Market Arbitrage
Bookmark this list, the number of prediction markets is growing every day.
1. @ArbBets20 — a platform for identifying arbitrage and positive expected value (EV) opportunities across prediction markets
2. @PredictionHunt - an aggregator with real-time cross exchange comparisons, arbitrage detection, and smart matching across prediction markets
3. @arbprediction - an arbitrage terminal for different prediction markets
4. @kachoio - the creator of a Polymarket sports market-making / arbitrage bot on GitHub
5. Other open-source bots - there are many different trading bots available on GitHub, using different strategies and concepts
Use these tools to find an edge and trade with your own strategies
Tool websites are in the replies
- 10 replies
- 3 reposts
- 49 likes
- 6.3K views
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Stop trading the direction of MSTR.
Trade the funding rate.
Long Pacifica.
Short Ondo.
Collect the spread between the two rates.
That’s it.
- 1 replies
- 2 reposts
- 6 likes
- 3K views
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Prediction Markets are great for arbitrage.
- 1 replies
- 2 reposts
- 4 likes
- 2.8K views
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Perpetual Funding Arbitrage.
MSTR - Long Pacifica
MSTR- Short Ondo
You collect the funding rate instead of betting on price direction.
funding rate arb
funding arbitrage
funding rate farming
cross-exchange funding arbitrage
delta-neutral carry trade
Funding rate arbitrage.
- 1 replies
- 2 reposts
- 6 likes
- 3.1K views
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If you're used to American odds,
here's the quick cheat sheet for prediction markets:
+400 → 20¢
+300 → 25¢
+200 → 33¢
+150 → 40¢
+100 → 50¢
-150 → 60¢
-200 → 67¢
-300 → 75¢
-400 → 80¢- 3 reposts
- 8 likes
- 3.4K views
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I built HyperShot.
Trickshot for @HyperliquidX
Paste any wallet → Replay their trades.
https://hypershot.perpetualfutures.education- 2 reposts
- 3 likes
- 3.5K views
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The smart ones will run arbitrage on prediction markets.
- 2 reposts
- 4 likes
- 3.2K views
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No picks, no handicapping.
Prediction Markets Arbitrage > Parlays on Sportsbooks- 1 replies
- 2 reposts
- 6 likes
- 1.3K views
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Prediction markets might be one of the most interesting places for arbitrage right now.
- 3 reposts
- 7 likes
- 2.6K views
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You can even arbitrage the funding rates across multiple perp DEXs.
cross-exchange funding arbitrage
funding rate arb
funding arbitrage
perp funding arbitrage
funding rate farming
funding rate capture
funding rate trading
perpetual funding arbitrage
delta-neutral carry trade
- 5 replies
- 3 reposts
- 14 likes
- 4.1K views
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NFL Parlay 🏈
San Francisco 49ers ML -125
Denver Broncos ML -245
Detroit Lions ML -192
Odds: +323- 2 reposts
- 3 likes
- 246 views
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Arbitrage on prediction markets is such a clean strategy.
Different markets.
Different prices.
Same underlying event.
The hard part is finding enough of them.- 3 reposts
- 9 likes
- 2.5K views
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The more markets you compare, the more pricing errors you expose.
Arbitrage is a numbers game.- 2 reposts
- 8 likes
- 2.7K views
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Prediction markets are great for arbitrage.
Buy Yes on Kalshi - 52¢
Buy No on Polymarket - 36¢
- 2 reposts
- 8 likes
- 1.6K views
ArbBets Reviews & Comments
No reviews yet. Be the first to share your experience.
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