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Polymarket APIs, data and developer tools | Page 2

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 · 13–24 shown

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Marketlens Python installation and Strategy quickstart
Marketlens Python SDK
SDK4.0Editorial

Compare fast bar experiments with detailed L2 replay, reusing downloaded history between strategy changes.

  • Language Python
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
Pendulum Flow public archive introduction and capture eras
Pendulum Flow Orderbook Archive
Dataset4.0Editorial

Inspect hourly Parquet files and coverage audits before reconstructing historical Polymarket depth.

PMWallets public entity leaderboard and filters, with address visibility depending on access.
PMWallets
Analytics4.0Editorial

Entity-level wallet research with uncertainty metrics, accounting caveats and explicit address-access costs.

  • Access Web
Official Polymarket CLOB price and book documentation
Polymarket CLOB API
Data API4.0Editorial

Read outcome prices and depth, then handle authenticated orders through a separate signing boundary.

  • Access API
Official Polymarket public analytics integration guide
Polymarket Data API
Data API4.0Editorial

Retrieve positions, trades, holders and rankings while preserving outcome IDs and pagination context.

  • Access API
Polymarket documentation page explaining how Polymarket works
Polymarket Documentation & Learn
Learning & media4.0Editorial

Official concepts and implementation guides for understanding how Polymarket works.

  • Access Web
Official Polymarket Gamma API market-discovery documentation
Polymarket Gamma API
Data API4.0Editorial

Discover contracts and their identifiers before querying executable prices or building a searchable catalog.

  • Access API
Official Polymarket Python SDK installation and quickstart
Polymarket Python SDK
SDK4.0Editorial

Typed sync and async clients for scripts, notebooks, account workflows and real-time subscriptions.

  • Language Python