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PredictionData.dev

Export tick-level prediction-market datasets for research.

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Polymarket support
Partial
Pricing model
Paid · from $450/month
Access requirement
API key required
Wallet required
No
Trade execution
None
Last editorial review
Aug 24, 2026

01 · Overview

What is PredictionData.dev?

PredictionData.dev delivers historical Polymarket and Kalshi datasets in analysis-friendly formats including CSV and Parquet. Best for: Quantitative researchers who need downloadable Polymarket and Kalshi datasets for reproducible backtests, market studies, and independent analysis. Less suitable for: Live traders who need an execution interface or wallet analytics. Key limitations: Dataset coverage and sampling differ by venue and product; inspect the data dictionary before comparing markets.

APIHistorical DataMarket Analytics
Explore PredictionData.dev by taskBuild with Polymarket dataDownload Polymarket datasetsReplay historical marketsResearch a market

02 · Best for

Who is PredictionData.dev best for?

Best for

Quantitative researchers who need downloadable Polymarket and Kalshi datasets for reproducible backtests, market studies, and independent analysis.

Not ideal for

Live traders who need an execution interface or wallet analytics.

Limitations

Dataset coverage and sampling differ by venue and product; inspect the data dictionary before comparing markets.

03 · Access & execution

How do access and execution work?

Entity typeData infrastructure
Polymarket supportPartial
Pricing modelPaid · from $450/month
Free planNo
Access requirementAPI key required
Wallet requiredNo
Trade executionNone
Product statusLive
KalshiPolymarket

Scope-aware product facts

What to look for

Surfaces

ProductWeb · Supported Evidence

Access modes

Primary workflowAPI key required · wallet No · Not required · Non-custodial Evidence

Execution modes

Primary workflowNone · Not supported · Not required Evidence

Pricing offers

Primary productSubscription · $450 Evidence

Data capabilities

Product data · P&LNot applicable · Not applicable Evidence
Product data · Fee accountingNot applicable · Fees included in P&L Evidence
Product data · Rewards accountingNot applicable · Rewards included in P&L Evidence
Product data · Open positions accountingNot applicable · Open positions included in P&L Evidence
Market data · Order book historySupported · Recorded Evidence

04 · Data provenance

Data provenance

Current coverage: CompleteA transparent record of which official sources were checked and when.

Data originMixed sources
PnL methodologyNot applicable
Fees includedNot applicable
Rewards includedNot applicable
Open positions includedNot applicable
Order-book historyRecorded
Update cadencePeriodic
Review provenance evidence

05 · Public footprint

Public footprint

Current public signals from official platform sources, shown with their observation dates.

Product activity

A transparent record of which official sources were checked and when.

Product statusLive
Tracked by PredAtlas sinceAug 24, 2026
Last editorial reviewAug 24, 2026
Official documentationYes

06 · Sources & review

How was PredictionData.dev reviewed?

Documentation strength: CompleteA transparent record of which official sources were checked and when.

Sources reviewed · Aug 24, 2026

Official product sources were checked for documented identity, scope, access, pricing and limitations. This is not a security audit, performance test or endorsement.

Official homepagepredictiondata.devDocumentationdocs.predictiondata.dev