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Polymarket APIs and Data Providers

Choose Polymarket data access by coverage: markets, order books, wallet activity or historical records.

How to choose data apis

Which data do you need, and how will you receive it?

  • Match the provider to the entity you need: a market, outcome token, trade or wallet.
  • Check REST versus streaming delivery, authentication, coverage and rate limits.
  • Distinguish public data reads from signed account actions; an SDK is a separate choice.
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81 tools · 13–24 shown

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Polymarket Sports WebSocket: Public sports channel and heartbeat messages.
Polymarket Sports WebSocket4.0Editorial
Data API

Stream live game scores, status and period updates from Polymarket’s public sports WebSocket.

  • Data coverage Sports events
  • Access API
Probalytics: Historical data warehouse with an SQL result example.
Probalytics4.0Editorial
Dataset

Query historical prediction-market trades and full-depth order books through ClickHouse SQL, REST, a Python SDK or Parquet exports.

  • Data coverage Trades · Order books
  • Access API
The Odds API: Odds API introduction, response example and plan entry points.
The Odds API4.0Editorial
Data API

Retrieve bookmaker odds, scores and historical snapshots to build an external sports-price reference for prediction-market research.

  • Data coverage Sports events · Bookmaker odds
  • Access API
TickFoundry: Dataset entry page and illustrative book ladder.
TickFoundry4.0Editorial
Dataset

Download historical market-day bundles or replay books and trades in a browser to inspect execution costs at a chosen size.

  • Data coverage Order books · Trades · Prices
  • Access Web · API
0xinsider: Sports wallet-pattern research and linked-position examples.
0xinsider3.5Editorial
Analytics

Compare Polymarket sports prices with profitable-wallet positions, inspect trader grades and track large trades through a dashboard or API.

  • Access Web · API · MCP
Adanos Market Sentiment API: Polymarket stock-sentiment API and ticker-discovery entry point.
Adanos Market Sentiment API3.5Editorial
Data API

Aggregate Polymarket activity by stock ticker and compare it with Reddit, X and news sentiment through one API subscription.

  • Data coverage Markets · Sentiment
  • Access API · CLI
Adjacent: Editorial market research and newsletter archive.
Adjacent3.5Editorial
Research tool

Follow event-contract benchmarks, thematic indices, reference rates and news organized around prediction-market moves.

  • Access Web · API · Email
ArbBets entry page with a cross-venue YES/NO pricing example.
ArbBets3.5Editorial
Data API

Scan cross-venue price differences, inspect the proposed legs and costs, and access opportunity data through a paid API.

  • Data coverage Cross-venue matches
  • Access Web · API
ARBITER: Unified data API entry page and sample market view.
ARBITER3.5Editorial
Data API

Query normalized Polymarket and Kalshi markets, historical books, wallet analytics and matched events through one data API.

  • Data coverage Markets · Events · Order books · Trades · Prices · Positions · Cross-venue matches
  • Access API
Assymetrix: Prediction-market API overview and supported platforms.
Assymetrix3.5Editorial
Data API

Query prediction-market metadata, prices, trades and order books across venues through a normalized data API.

  • Data coverage Markets · Events · Prices · Trades · Order books
  • Access Web · API
Azuro — product overview
Azuro3.5Editorial
Infrastructure

Build prediction and sports-betting interfaces on shared liquidity, data feeds and protocol tooling, or research the liquidity-provider side of the ecosystem.

  • Access API
Billy: Sports slate with model lines and game-level notes.
Billy3.5Editorial
Research tool

Compare sports prices with money-flow, wallet, analyst and model signals, or query the same game research through a free MCP server.

  • Access Web · MCP