Prediction-market data providers
An overview of prediction market data providers and the roles they play in delivering event contract data, indices, and benchmarks.
What to evaluate
Compare providers on coverage, freshness, and data shape. Check whether they explain identifiers, missing data, and market status.
Methodology and provenance
A useful provider explains its methodology. It separates a market probability from an index level. It shows settlement provenance when that exists. Formal documents matter when a value is calculated, not copied from a venue.
Delivery and integration
Evaluation can include REST API access, MCP access, embeddable charts or cards, and agent skills or discovery metadata. The right delivery depends on whether the consumer is an application, analyst, or autonomous research workflow.
Terms used on this page
- Event contract
- A contract whose value follows a defined event, such as an election. It settles on the outcome. It does not trade a continuous price forever.
- Prediction market
- A venue where event contracts trade, so their prices express a market-implied probability of the event happening.
- Prediction market index
- A rules-based benchmark built from selected event contracts. An index provider calculates it, not a venue.
Sources
Page last reviewed: 2026-09-24.