Source
The Manifold prediction-market corpus, queryable with read-only SQL: markets as observation-append state rows, bets each with the market probability before and after it, and comments with the commenter’s position at comment time.
manifold.marketsmanifold.betsmanifold.commentsA market’s observed price path comes from manifold.bets, since every bet has prob_before and prob_after; trader-level activity and market-moving bets aggregate the same rows by user or amount. manifold.comments attaches each commenter’s position at comment time, so discussion and exposure read from one row.
market_idsearch_keysourceexternal_typekindentity_idslugurititlepayloadtext_descriptioncreator_idcreator_usernamecreator_namecreator_avatar_urlclose_timecreated_at_sourceupdated_at_sourcelast_bet_atlast_comment_atresolution_timeoutcome_typemechanismvisibilityis_resolvedprobabilitypoolpvolumevolume_24htotal_liquidityunique_bettor_countresolutionraw_marketmetadatablake3_hashword_countis_deletedfirst_observed_onobserved_onobserved_hourobserved_atRead from the schema registry for manifold.markets, 42 columns, last verified 2026-09-19 10:31 UTC. Every relation's full contract is served by /v1/scry/schema.
Collapse observation-append state rows to the latest per market, then rank open markets by volume.
SELECT market_id, title, probability, volume, unique_bettor_count FROM ( SELECT * FROM manifold.markets ORDER BY observed_at DESC LIMIT 1 BY market_id ) WHERE is_resolved = 0 ORDER BY volume DESC LIMIT 20;
Every bet has the market probability before and after it — the observed price path of a question.
SELECT created_at_source, prob_before, prob_after, amount, outcome FROM manifold.bets WHERE contract_id = '<market-id>' AND prob_before != prob_after ORDER BY created_at_source LIMIT 1000;