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.

Select two to four records to compare. Your selection stays while browsing.

Data & APIs

Marketlens

Tick level Polymarket order book history with a Python SDK and REST API for replaying books and backtesting strategies with simulated fills, fees and latency.

Reported venues: Polymarket

Historical pricing: Free + Pro $29/mo + Scale $149/mo

First-party page observed · Not assessed

Catalogue snapshot:

15 website-declared statements

Terminals & Aggregators

Matchr

Cross-platform market aggregator that matches equivalent events across venues, shows the best price, and routes execution gaslessly through Safe smart wallets, currently via Polymarket.

Reported venues: Polymarket, Kalshi, Manifold, Metaculus, PredictIt

Historical pricing: Not published

Historical catalogue only · Not assessed

Catalogue snapshot:

Analytics & Whale Tracking

MentionMetrix

Dashboard counting how often words appear in speeches, briefings and earnings calls, with filters and trend charts for Kalshi and Polymarket mention markets.

Reported venues: Polymarket, Kalshi

Historical pricing: Not published

Historical catalogue only · Not assessed

Catalogue snapshot:

Dashboards

Metaforecast

Former QURI search engine that indexed probabilities from Metaculus, Manifold, Polymarket and other platforms with a GraphQL API. The domain now redirects to the QURI blog.

Reported venues: Polymarket, Manifold, Metaculus, PredictIt, Kalshi

Historical pricing: Free

Historical catalogue only · Not assessed

Catalogue snapshot:

Infrastructure & DeFi

MetaMask Prediction Markets

Polymarket trading built into MetaMask Mobile with one-tap funding from any EVM token, MetaMask Rewards points per trade and a 4% fee split with Polymarket. Not offered in the US.

Reported venues: Polymarket

Historical pricing: 4% per trade; no deposit or withdrawal fees

Historical catalogue only · Not assessed

Catalogue snapshot:

Send a free factual correction or request a review for an unlisted business. Payment does not change a listing or confer a review result.

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