Prediction-market directory

Business directory

Explore prediction-market products and services through their sources: what they do, reported pricing and venues, website-declared details and retained history.

991

website / project records

288

historical catalogue profiles

2,242

page-declared statements

Evidence package: . Includes 790 first-party site records and 201 additional historical catalogue records. These are not counts of verified legal companies. Historical catalogue claims retain their earlier dates; a listing is not a passed review.

991 matching records. Alphabetical order; inclusion and order are free.

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AI Agents & Research

Elastics

Warsaw and New York startup building a natural-language strategy builder and auditable agents that trade Polymarket via wallet and Kalshi via API keys. Currently in private beta.

Reported venues: Polymarket, Kalshi

Historical pricing: Not published

First-party page observed · Not assessed

Catalogue snapshot:

Arbitrage

Event Arb

Catalogue label: Eventarb

Free calculator for event-contract arbitrage: enter odds from Kalshi, Polymarket, Robinhood or Interactive Brokers and it returns fee-adjusted spreads and stake splits.

Reported venues: Kalshi, Polymarket, Robinhood, Interactive Brokers

Historical pricing: Free

First-party page observed · Not assessed

Catalogue snapshot:

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Historical descriptions and catalogue claims: Kairos contributors, CC BY 4.0. Vultax adds source matching, presentation and factual comparisons. Attribution, licences and coverage.