Related Products
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About
Kalshi is a federally regulated derivatives exchange built for quants. Kalshi’s markets are volatile and settle daily, which means even a small edge can be extremely profitable. Trading is fully-cash collateralized, so you can never lose more than you put into a trade, and contracts can be purchased for as little as $0.01.
Kalshi supports trading through its native app (iOS & Android), website, and API. The latter features extensive documentation, open-sources sample code, and live technical support. Getting started with an algorithmic strategy is as easy as `pip3 install kalshi_python`.
The following data is available for free on both the website and API:
* Historical spreads: Use past pricing data to set up back-tests within minutes.
* Low-latency broadcasts: Receive live updates of market price movements and trade executions.
* Economic projections: Build strategies using Kalshi’s proprietary forecasting tools.
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About
PropLine is a real-time player-props betting odds API serving 54 sports and 25 books — including Pinnacle and six exchanges (Kalshi, Polymarket, Smarkets, Matchbook, Novig, ProphetX) that the-odds-api and OddsJam don't carry. It is the only odds API that resolves player props against actual box scores: every Over/Under outcome ships with won/lost/push/void plus the real stat value. Pricing is per request, not per credit, so player props and alternate lines don't multiply your bill the way they do on credit-metered APIs. The response schema is the-odds-api-compatible, so migrating is a base-URL change. Free tier is 1,000 requests/day, no credit card; Hobby is $9/mo for 5,000/day and unlocks every paid feature — cross-book +EV, line history, closing lines and graded resolution; Pro is $19/mo for 25,000/day, adding CSV exports; Streaming Lite is $39/mo for 100,000/day and Streaming is $79/mo for 1M/day, both with HMAC-signed webhooks. Official Python, Node, MCP and CLI SDKs.
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Audience
Traders, algotraders, commodity traders, stock traders, options traders
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Audience
Sports betting developers, quant/algo bettors, DFS tool builders, bet-tracker and odds-comparison apps, sports data engineers
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Support
Phone Support
24/7 Live Support
Online
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Support
Phone Support
24/7 Live Support
Online
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API
Offers API
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API
Offers API
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
$0
Free Version
Free Trial
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Pricing
$0 (free tier) / $9 per month
Free Version
Free Trial
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Reviews/
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Reviews/
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Pros & Cons from Real UsersPros
Cons
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Pros & Cons from Real UsersPros
Cons
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Training
Documentation
Webinars
Live Online
In Person
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Training
Documentation
Webinars
Live Online
In Person
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Company InformationKalshi
Founded: 2018
United States
www.kalshi.com
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Company InformationPropLine
Founded: 2026
United States
prop-line.com
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