Every Kalshi and Polymarket market unified into a single probability time series. Trade-level data, hourly price history, and resolution outcomes.

Get access

Polymarket probability series and trade data are free to explore on Dune. Kalshi signal research, wallet-level positions, and the unified cross-venue schema require Enterprise.

Polymarket

Polymarket's onchain exchange on Polygon, unified into one queryable dataset. Trade-level fills, hourly candlesticks, wallet positions, and combo markets, all under one schema since Nov 2022.

GranularityHOURLY
RefreshDAILY
TRADE-LEVEL
Open accessQuery for free

Good for market exploration, metric reporting, and basic backtesting.

Enterprise add on

Track wallet positions building up before a catalyst. See volume-weighted price moves in hourly candles. Check wallet PnL on settled positions, and follow combo (parlay) markets from open to settlement.

Kalshi

Kalshi's CFTC-regulated exchange, unified into one queryable dataset. Per-fill trades, hourly candlesticks, and full contract specifications, all under one schema since June 2021.

GranularityHOURLY
RefreshDAILY
TRADE-LEVEL
Open accessQuery for free

Good for market exploration and volume metrics using Kalshi's daily aggregate reports.

Enterprise add on

See volume-weighted price moves in hourly candles. Check per-fill trade data for every contract. Reference strike and settlement details for Fed meetings, inflation prints, and jobs reports since June 2021, and backtest signals against resolved outcomes.

Unified schema

Normalized Kalshi and Polymarket data in one schema, with consistent columns, categories, and settlement status.

GranularityHOURLY
RefreshDAILY
TRADE-LEVEL
Enterprise add on

Compare, filter, and backtest across both venues in one query, with no venue-specific transformation logic.

How to access the data

Three ways to query and integrate prediction markets data. Choose the one that fits your stack.

CapabilityDatashareDune DatahubMCP
DeliverySync to your warehouseQuery in Dune SQL editorModel Context Protocol
Best forSnowflake, Databricks, BigQuery, S3Dashboards, templates, API exportAI agents, automation, LLM workflows
API limitsNo API limitsDune query limits applyAgent workflow limits apply

Go deeper on prediction markets

Read How Prediction Markets and Perps Handled the Iran War Oil Shock
RESEARCH · Apr 8, 2026

How Prediction Markets and Perps Handled the Iran War Oil Shock

Using Dune data, we compared Polymarket and Ostium during the oil spike from $66 to $115. Both captured the same macro trade, but served different needs: prediction markets for precise, smaller bets; perps for deep liquidity, continuous exposure, and scale. The takeaway is not one replacing the other, but each fitting a different type of trader.

Talk to our data solutions team

Flexible pricing based on your actual usage. Start with a preview dataset today.

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Ways to access the data

Datashare CTA

Datashare

Sync the full prediction markets schema to Snowflake, BigQuery, or Databricks. No API limits.

SnowflakeBigQueryDatabricks
Dune Data Hub CTA

Dune Data Hub

Query the prediction markets schema directly in Dune's SQL editor. Start from a template or write your own.

Dune API CTA

Dune API

Programmatic access to the prediction markets schema. Same shape, REST-ready for pipelines, integrations, and product features.

Dune MCP

Plug prediction markets data into Claude, Cursor, Codex, and other MCP-compatible agents.