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Polymarket APIs, data and developer tools | Page 5

Start with the data or action your application needs, then choose a compatible interface and access model. This family covers building blocks for research applications, data systems and trading integrations.

How to choose developer tools

Choose the building block

  • APIs supply documented datasets or actions; SDKs and GitHub libraries help integrate them into code.
  • Historical datasets support retrospective work, while streams provide ongoing updates.
  • MCP servers expose tools to assistants; command-line tools offer a different operating interface.
  • Indexing tools and builder resources support data infrastructure and application development.

Check compatibility before integrating

Compare programming languages, runtime and deployment requirements, API coverage and entitlements. A repository can supply code without granting access to a hosted dataset. Read the relevant software and data licensing terms.

Separate public research reads from account operations. Establish the credentials and permissions needed for each action before enabling them in your application or agent. Move to infrastructure tools when the main task is running the service rather than choosing its data interface.

All categoriesData APIs88SDKs & libraries25Historical data38MCP servers29Official developer tools10Streaming data19CLI tools10On-chain data6Starter projects & resources13
135 tools · 49–60 shown

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Find the right tools

dr-manhattan exchange interface and adapter architecture
dr-manhattan
SDK3.5Editorial

Use shared Python market and order methods across venues, with optional local or hosted MCP access.

  • Language Python
  • Access API · MCP
Duel Duck public duel cards on its Solana venue
Duel Duck
Platform3.5Editorial

A separate Solana prediction venue for community-created yes/no duels and embeddable event questions.

  • Access Web
Eversight research composer and market attachment entry
Eversight and Signals APIs
Research tool3.5Editorial

Request probabilities and retrieve attributed market signals through separate Numinous research APIs.

  • Access Web · API
FactsAI official research API presentation
FactsAI
Data API3.5Editorial

A prepaid research API for cited factual answers, with source checking left to the research workflow.

  • Access API
FinFeedAPI products and integration entry points
FinFeedAPI Prediction Markets
Data API3.5Editorial

A normalized prediction-market data service for dashboards, historical replay and AI clients.

  • Access API · MCP
Futuur market asking whether Luiz Inácio Lula da Silva will win Brazil’s 2026 presidential election
Futuur
Platform3.5Editorial

Explore event questions with separate OOM practice and supported real-money trading modes.

  • Access Web · API
Goldsky Compose official framework presentation and workflow illustration
Goldsky Compose
Infrastructure3.5Editorial

A framework for durable TypeScript tasks spanning external services and blockchains, with market and copy-trader solution guides.

  • Access TypeScript · Cloud
Unusual Whales Predictions Smart Money rankings with score, win rate, PnL and category filters; some identities are gated
Hashdive / Unusual Whales Predictions
Analytics3.5Editorial

The migrated Hashdive research workspace for public wallets, market screening and notable Polymarket activity.

  • Access Web · API
Headline Arena overview of its forecast markets.
Headline Arena
Research tool3.5Editorial

AI forecast research with public reasoning, revision histories, resolved scorecards and paid API tools.

  • Access Web · API
Kairos Trade institutional API transports and normalized responses
Kairos Trade
Trading terminal3.5Editorial

Use an aggregated terminal or scoped enterprise API for data, orders, positions and trader intelligence.

  • Trading mode Manual
  • Access Web · API
LazyEdge official sports terminal and API presentation
LazyEdge
Research tool3.5Editorial

A model-versus-market sports terminal, with higher-tier API, webhook routing and WebSocket access.

  • Access Web · API
Mesh official data-platform presentation with a transcript research example.
Mesh
Data API3.5Editorial

Search event transcripts with speaker and timestamp context through a web platform and API.

  • Access Web · API