Frequently Asked Questions
Find answers to common questions about PredictPedia and prediction markets.
Privacy
Sign in and use Private account requests on the Contact page. Only your account and administrators can read the request. Return there for status and replies; no email notification is sent. Do not include passwords or API keys.
You can browse without signing in. Optional accounts store your verified email, profile name and image, plus account watchlists, monitored targets, notifications and submitted comments or votes. The site also uses Google Analytics and Vercel Web Analytics. See the Privacy Policy for cookies, service providers and data controls.
PredictPedia is an independent information service. It is not affiliated with, endorsed by or sponsored by Polymarket or Kalshi.
Features
No. Starting values are hypothetical examples. A loaded contract uses reference prices and displays its observation time when known. Choose the contract and outcome, check current venue prices and fees, then edit the scenario. Results depend on your assumptions and do not place orders.
Market pages show historical price charts where the source provider supplies usable observations. Some markets have no available history or have gaps. The chart does not reconstruct missing prices or guarantee a continuous record.
For supported Polymarket and Kalshi event URL formats, replace the source domain with predictpedia.com to open the matching PredictPedia page. Some venue URLs are unsupported or refer to records outside the published catalog. The URL guide lists examples; site search is another way to find an event.
Yes. Market pages offer sharing controls and a direct link you can copy. A shared link opens the market page; it does not share your account watchlist or alerts.
Without signing in, a watchlist stays in this browser's local storage. Signed-in watchlists are saved to your account and can be used on another device. Moving a guest watchlist into an account requires the explicit import action, which removes the guest copy after a successful import.
Guests can save local price references, but monitoring requires signing in and explicitly enabling a target. The checker is scheduled every 15 minutes and uses the published catalog, whose provider prices refresh about every three hours. Observations more than six hours old are skipped, so brief price changes can be missed. A target triggers once into your account inbox on the Watchlist page. No email, SMS or browser push is sent.
General
PredictPedia combines public prediction market data from Polymarket and Kalshi with saved AI context, source links, guides and calculation tools. It helps you inspect market questions and compare available information.
Browsing PredictPedia and using its calculators is free. Trading venues charge their own fees and set their own eligibility rules.
No. PredictPedia does not place orders or hold trading funds. Trading happens on the source venue, under that venue's rules.
Data
The market catalog is a saved snapshot, with a refresh currently scheduled every three hours. Refreshes can fail or individual records can be older. Check the displayed observation time, and open the source venue for current executable prices. PredictPedia is not a real-time trading feed.
Claude generates analysis and educational context, which PredictPedia saves for later readers. Check the generated date and any supplied references. A recent generation date does not guarantee that every statement is current or correct, and older saved content may remain while a replacement is prepared. Treat this material as background to verify, not a trading recommendation.
No. Saved educational context and analysis may omit later developments. Check its generated date, follow available references, and read the source venue rules. PredictPedia does not provide a complete live news or social-sentiment feed.
Technical
Use a current version of Chrome, Firefox, Safari or Edge with JavaScript enabled. The site adapts to smaller screens. Browser privacy settings or extensions can affect sign-in, local storage and third-party content.
The URL may use an unsupported format, the event may not have been captured in the published catalog, or a required provider may be unavailable. Some historical records remain accessible after trading closes, so closure alone does not mean a page must disappear. Try site search and check the original venue link.