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366 tools. One searchable catalog.

Find tools for Polymarket and Kalshi — Page 4

Explore trading apps, analytics, APIs and research for the Polymarket and Kalshi ecosystems. Compare documented functions, costs and access requirements for the task you want to tackle.

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366 tools · 19–24 shown

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Official Metaculus tutorial showing how to set a binary probability.
Metaculus
Research tool4.0Editorial

Direct probability forecasting with community comparison, defined resolution criteria and scored records.

  • Access Web · API
MKTGAP’s public manual-input prediction-market fee calculator.
MKTGAP
Analytics4.0Editorial

A public manual calculator separating a gross price gap from fee-adjusted pair costs.

  • Access Web
Official National Weather Service API documentation with access and specification sections
National Weather Service API
Data API4.0Editorial

Official machine-readable U.S. forecasts, observations and alerts, with documented access and operational guidance.

  • Access API
NautilusTrader Polymarket adapter scope and integration-guide entry
NautilusTrader
SDK4.0Editorial

Receive native market events and manage signed orders, reconciliation and resolution in one trading framework.

  • Language Python · Rust
Open-Meteo generated forecast response, chart and export formats
Open-Meteo
Data feed4.0Editorial

An external weather API for comparing models and reconstructing forecasts available at a historical decision.

  • Access API
OutcomeTick’s official archive and backtesting presentation showing its stated dataset scope.
OutcomeTick
Dataset4.0Editorial

Download crypto Up/Down history with separate event/receive times, settlement data and checksums.

  • Access API · Downloads · SDK

Explore workflows

Build your Polymarket workflow.

Choose a task, then find the tools for each step.

All workflows
Research → Choose a mode → Check costs

Research a trader before copying

Research a trader, then decide between simulated, manual and live copying. Review the costs and available controls at every stage.

Follow the workflow Discover → Inspect → Monitor

Follow wallets and market activity

Compare wallet trackers, examine positions and use activity records to understand the context of a trader’s actions.

Find wallet-tracking tools Choose data → Integrate → Analyze

Build with Polymarket data

Find APIs, SDKs and historical datasets suited to your dashboard, research process or trading application.

Explore developer tools

Learn the essentials

Practical Polymarket guides.

All guides

Polymarket API key and authentication

Find out when public data needs no key and how authentication works for private CLOB requests.

Read guide

Polymarket API endpoints: Gamma, CLOB and Data

Match your task to Gamma, CLOB or Data API, and distinguish market IDs, outcome-token IDs and wallet identifiers.

Read guide

Explore the apps, data services and research resources around Polymarket. Start with your task, then inspect each tool's features, costs and limitations before visiting the official product.

Browse the full ecosystem

Move from trading interfaces and wallet research to APIs, infrastructure and learning resources. Categories describe the job a tool supports, so the same product may appear in more than one place.

Put the tools into context

Use guides and workflows to understand how the available tools fit together and which steps depend on a specific product or data source.