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Data API

ArbBets: examine a price difference before planning the trade

ArbBets is a web and API research service for price differences across venues, including Polymarket and Kalshi. It links a displayed opportunity to proposed trade legs and an investment amount; execution remains a separate action.

Explore ArbBetsgetarbitragebets.com
Available on
Web · API

Screenshots and interface

What is ArbBets?

The scanner filters opportunities by platform and category, while the sizing calculator shows proposed legs for a chosen investment. Plan-dependent tools extend into sportsbook comparisons, funding rates, weather and market odds. The public demo is delayed, so it is useful for inspecting the interface rather than establishing an executable current price.

The API returns identifiers, links, prices, gross and net profit figures and reasons some books were skipped. Before integrating, verify a real response: the endpoint overview and response reference use different opportunity structures. A matched pair still needs a check of both contracts’ settlement rules, fees and available depth.

Who it is for

  • Traders researching equivalent outcomes across venues.
  • Developers needing opportunity data for a chosen investment size.
  • Researchers shortlisting spreads before checking order books.

Features and coverage

  • Cross-market scanner

    Filter platforms and categories and sort displayed opportunities.

  • Trade-leg sizing

    Inspect proposed legs for a specified investment amount.

  • Opportunity context

    Read API identifiers, links, prices, gross/net profit and skipped-book reasons.

  • Additional research tools

    Plan-dependent scanners cover sports, weather, funding rates and market odds.

  • Bearer-authenticated API

    Request structured opportunity data with a dashboard API key.

  • Delayed public demo

    Inspect the interface before subscribing, keeping the demo delay in mind.

Workflows with ArbBets

Evaluate a displayed spread

An execution plan needs more than the scanner's match. Work from both original contracts, checking settlement compatibility and depth at the proposed leg sizes, then include each venue's fees before deciding whether to trade.

Budget API polling

Set investment and minimum dollar profit, calculate calls per day and compare usage with the monthly credit allowance.

Pricing and total cost

Monthly plans are Basic US$59, Pro US$149 and Premium US$299. API access is listed in Premium with 5,000 credits per month.

Basic

US$59/month

  • Sports-focused tools.

Pro

US$149/month

  • Prediction-market and additional opportunity tools.

Premium

US$299/month

  • API access.
  • 5,000 monthly API credits.

Fees and usage costs

  • The documented arbs-full_2 request consumes one credit.
  • At one request per minute, 5,000 credits cover about 3.47 days of continuous polling.

Getting started

Before you start: Demo prices are delayed.

  1. Inspect the demo and choose the plan covering the tools you need.
  2. For API use, create a dashboard key and use bearer authentication.
  3. Set investment and min_profit in dollars.
  4. Inspect a current response before writing a parser or execution workflow.

The demo is delayed data, not a live execution feed.

Read ArbBets API documentation

Useful links

What to check

  • Demo prices are delayed.
  • Endpoint and response-reference examples differ; verify the actual schema.
  • Spreads depend on settlement rules, available size and actual fills.
  • Data access does not place both venue orders.

A closer look

Ratings & reviews

Editorial rating
3.5/ 5
0 user reviews

Our take on ArbBets

Sizing and a documented paid API give the scanner useful context beyond a headline spread. Delayed demos and inconsistent response examples limit pre-purchase integration assessment.

Based on documented features, setup and access terms. How we rate

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The main score switches to user ratings after 5 published reviews.

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A specific example helps the next person choose the right tool.

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Frequently asked questions about ArbBets

Is min_profit a percentage?

No. It is a dollar amount in the documented API.

Which plan includes API access?

Premium lists API access and 5,000 monthly credits.

Does an opportunity mean both orders executed?

No. It is research data; order placement is separate.