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About

Polymarket is a blockchain-based prediction market platform that allows users to trade on the outcomes of real-world events by buying and selling shares tied to specific results. Instead of betting against a centralized house, users participate in a peer-to-peer market where prices reflect the collective belief about the probability of an event occurring. Each market typically offers “Yes” or “No” outcomes, with share prices ranging from $0.01 to $1.00, representing the likelihood assigned by participants. It operates on the Polygon blockchain and uses cryptocurrency, enabling transparent, trustless transactions settled through smart contracts while maintaining user control over funds. Polymarket covers a wide range of topics, including politics, economics, sports, and global events, and is designed to aggregate information from diverse participants into real-time probability estimates.

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.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Supported
iPad Supported
Android Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Traders, analysts, researchers, and individuals interested in forecasting real-world events, market trends, and probability-based decision-making using decentralized platforms

Audience

Sports betting developers, quant/algo bettors, DFS tool builders, bet-tracker and odds-comparison apps, sports data engineers

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

$0 (free tier) / $9 per month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 5.0 / 5
ease 4.8 / 5
features 5.0 / 5
design 4.8 / 5
support 5.0 / 5

Pros & Cons from Real Users

Pros

  • I love this company hands down, I have researched and tried many! The ODDS API is horrrrible compared to Propline for starters the credits are 10x more for API calls, the price and breadth of odds it just beats many and they keep adding improvements! Andy is awesome, truly! Email responsiveness has been the most trustworthy part. Not to mention that Andy has actively listened to my suggestions about the platform, tested the requests and some have been implemented if there was genuine value!!! I love Prop-line I truly do and its my best kept secret. A true gem that if you find them then you were supposed to ! Thank you for everything and I'm a proud member. I have tried parlayapi, theoddsapi, oddspapi is grossly expensive, man i can keep going on and on the rundown is restrictive and costs more for less calls per day I have reviewed the all Propline is the best one I have found!
  • Great collection of bookmakers (not just 20 copies 1xbet clones) , combining breadth and sharpness. Huge amount of features. Historical data available too, but I have not tried.
  • - Reliable - Easy to use - Plenty of data - Never run out of API calls especially with well priced webhooks - Most cost efficient product on the market and it's not even close
  • -Reliability is top notch quality -Accuracy is phenomenal -Data speeds are excellent - Support is available 24/7. They respond almost immediately if there is an issue.
  • PropLine has been one of the best APIs I’ve worked with. The API is fast, well documented, and easy to integrate, with excellent coverage across sports and player props. What really stands out is the support. The team listens to feedback, responds quickly, and has shipped multiple improvements based on real developer suggestions. The pricing is also very fair compared to other sports data providers.

Cons

  • None at all, anything I thought could benefit the platform Andy checked out and got to work on it immediately and any questions were answered within 24 hours.
  • I mean frankly, none. Any system like that occasionally has issues, and when I found something and emailed support the issue was fixed really fast, once literally within minutes.
  • Really can't think of much, maybe there could be a few more books but I know that is something Andy is consistently working on and I have no doubt those will come in the near future.
  • No cons found. I have been using on a daily basis since April 2026 and have zero complaints. If I had to "find" a con to list, it would be building out Prop-Line with the intent of Live Betting. During Live betting, Odds & Lines change frequently so it's a complete different beast.
  • I honestly don’t have any major complaints. I’d love to see the platform continue expanding with even more sports, markets, and documentation over time, but the team has been consistently improving the product and adding new features.

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Polymarket
Founded: 2020
United States
polymarket.com

Company Information

PropLine
Founded: 2026
United States
prop-line.com

Alternatives

Alternatives

Sports Game Odds API

Sports Game Odds API

Sports Game Odds
PropTrackr

PropTrackr

North Shore Enterprises
Polkamarkets

Polkamarkets

Polkamarkets Labs
Propmaster

Propmaster

Narra no ki Inc.

Categories

Crypto Supported
Prediction Market Supported

Categories

Sports Data APIs Supported

Integrations

Alphio Supported
Fere AI Supported
Kalshi Not Supported
Mantapex Supported
Mimasa AI Supported
PolyTest Supported
Polygon Supported
Polymarket Not Supported
Polymtrade Supported
PropLine Supported
QuantVPS Supported
SocialCrawl Supported
Swapzone Supported
Tiger Data Supported

Integrations

Alphio Not Supported
Fere AI Not Supported
Kalshi Supported
Mantapex Not Supported
Mimasa AI Not Supported
PolyTest Not Supported
Polygon Not Supported
Polymarket Supported
Polymtrade Not Supported
PropLine Not Supported
QuantVPS Not Supported
SocialCrawl Not Supported
Swapzone Not Supported
Tiger Data Not Supported
Claim Polymarket and update features and information
Claim Polymarket and update features and information
Claim PropLine and update features and information
Claim PropLine and update features and information