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Polymarket APIs, Data and Developer Tools

Build your integration with the right combination of APIs, SDKs, streams and data infrastructure.

How to choose developer tools

Which component does your integration need next?

  • Choose the data or action first: market discovery, books, wallet activity or order operations.
  • Use an SDK for a language-specific client, or a CLI for command-line workflows.
  • Treat historical datasets, live streams and infrastructure as separate integration decisions.
All categoriesData APIs81SDKs & libraries25Historical data34MCP servers29Official developer tools10Streaming data17CLI tools9On-chain data6Starter projects & resources6
118 tools · 37–48 shown

Narrow your search

Find the right tools

Convex Lake: Data endpoints, authentication and response-field documentation.
Convex Lake3.5Editorial
Dataset

Retrieve batch market data and historical order books across prediction venues and options markets for execution research and model testing.

  • Access API · MCP
Crosswire: Prediction-market API and request example.
Crosswire3.5Editorial
Data API

Check whether Polymarket and Kalshi contracts settle the same way before comparing their prices.

  • Data coverage Resolution evidence · Cross-venue matches
  • Access API · MCP
Datadash — Wallet analytics
Datadash3.5Editorial
Analytics

Compare wallets or custom trader groups, score positions and receive alerts in the app or Telegram.

  • Access Web · Telegram · API · MCP
Desearch — forecasting research data: Numinous case study: evidence retrieval for forecasting models.
Desearch — forecasting research data3.5Editorial
Data API

Give forecasting agents web search, page extraction and social evidence through a usage-priced API documented in the Numinous research workflow.

  • Data coverage Web & social evidence
  • Access API
Dimes — product overview
Dimes3.5Editorial
Infrastructure

Embed Polymarket leverage in a terminal, mobile app or Telegram bot through an API that handles credit, margin and liquidation.

  • Access API · CLI
dr-manhattan: Unified exchange interface and adapter architecture.
dr-manhattan3.5Editorial
SDK

Use a common Python interface for prediction-market discovery, orders, positions and streaming, with optional MCP access.

  • Language Python
  • Access API · MCP
Eversight and Signals APIs: Eversight research composer and market attachment entry point.
Eversight and Signals APIs3.5Editorial
Research tool

Generate probabilistic forecasts and retrieve sourced signals for prediction-market questions through Numinous APIs.

  • Access Web · API
FinFeedAPI Prediction Markets: API products and integration entry points.
FinFeedAPI Prediction Markets3.5Editorial
Data API

Access normalized prediction-market listings, trades, quotes, order books and historical candles through REST, JSON-RPC or MCP.

  • Data coverage Markets · Trades · Prices · Order books
  • Access API · MCP
Futuur — Will Luiz Inácio Lula da Silva win Brazil's 2026 presidential election?
Futuur3.5Editorial
Platform

Explore global and Brazil-focused event markets, practice with virtual OOM or use the separate supported real-money trading mode.

  • Access Web · API
Headline Arena — market overview
Headline Arena3.5Editorial
Research tool

Compare AI agents’ forecasts, reasoning and revisions against a resolved record, with APIs and divergence alerts on paid plans.

  • Access Web · API
Kairos Trade: Institutional API transport and normalized-response features.
Kairos Trade3.5Editorial
Trading terminal

An aggregated prediction-market terminal and enterprise API for market data, order execution, positions and trader intelligence.

  • Trading mode Manual
  • Access Web · API