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NEW: Prediction Markets API

One REST API for all prediction markets data

Validity Bond

A validity bond is a stake posted by a market creator or reporter to ensure that a prediction market is well-structured and resolves clearly. If the market is invalid or ambiguous, the bond may be forfeited.
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A validity bond helps maintain quality and clarity in prediction markets. When a user creates a new market or reports an outcome, they post a bond to guarantee that the event is meaningful, unambiguous, and resolvable. If the market turns out to be unclear or violates platform rules, the bond can be taken away as a penalty.

This system encourages creators to write precise questions with clear resolution criteria. It also prevents spam or low-quality markets that could confuse participants. In decentralized systems, the bond plays a crucial role in protecting users from ambiguous events that cannot be resolved fairly. Over time, this improves the reliability of prediction markets data and the forecasting signals generated by the platform.

Validity bonds also help deter malicious market creation. Because users risk losing their bond for creating vague or manipulative markets, they are incentivized to produce events that are transparent, valid, and easy to verify upon resolution.

Validity bonds protect prediction markets from unclear or unresolvable events. They improve overall forecasting quality and ensure that prediction markets data comes from markets with sound, well-defined structures.

Prediction markets require validity bonds to ensure that only high-quality markets are created. By forcing creators to risk losing funds if their market is invalid, platforms discourage unclear or misleading event questions. This reduces disputes, improves resolution accuracy, and leads to cleaner prediction markets data. Validity bonds also help maintain user trust by preventing markets that could cause unfair outcomes.

Validity bonds encourage creators to think carefully about resolution criteria, event scope, and clarity. If a market is ambiguous or contradicts platform rules, creators risk forfeiting their bond. This financial incentive leads to better-written markets with clear outcomes. As a result, the prediction markets data generated from these markets is more reliable and easier to analyze.

Analysts can observe how often validity bonds are forfeited, which types of markets trigger penalties, and whether unclear event structures correlate with disputes. High forfeiture rates may signal poor onboarding or unclear guidelines, while low rates indicate strong market quality. These patterns help platforms refine market creation standards and improve prediction markets data integrity.

Manifold, a popular play-money prediction market platform, requires creators to post a small bond when opening certain types of markets. If the market question is later ruled invalid—for example, due to unclear resolution criteria—the creator loses the bond. This incentivizes precise wording and reduces confusion during settlement.

Validity bond systems generate important metadata about market quality and creator behavior. FinFeed's Prediction Markets API provides structured prediction markets data—including market details, resolution status, and price that developers can use to analyze patterns and improve market creation guidelines.

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