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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 34 sports and 13 books — including Pinnacle and four exchanges (Kalshi, Polymarket, Smarkets, Matchbook) that the-odds-api and OddsJam don't carry. It is the only odds API that automatically 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 with no credit card; Pro is $19/mo for 25,000/day with cross-book +EV, historical line movement and graded resolution; Streaming is $79/mo for 1M/day plus HMAC-signed webhooks. Official Python, Node, MCP and CLI SDKs.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

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
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

$0 (free tier) / $19 per month
Free Version
Free Trial

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 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Pros & Cons from Real Users

Pros

  • -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.
  • -They sell results (no fluff) - they dont waste time - CHEAPER and BETTER then oddsapi by a mile. - Pretty straightforward

Cons

  • 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.
  • - This brand isn’t out enough like oddapi. If i found this brand when I first started. My project would’ve took hours instead of weeks.

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

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
Polkamarkets

Polkamarkets

Polkamarkets Labs

Categories

Categories

Integrations

Alphio
Fere AI
Kalshi
Mantapex
PolyTest
Polygon
Polymarket
Polymtrade
PropLine
QuantVPS
SocialCrawl
Tiger Data

Integrations

Alphio
Fere AI
Kalshi
Mantapex
PolyTest
Polygon
Polymarket
Polymtrade
PropLine
QuantVPS
SocialCrawl
Tiger Data
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