Polytoolhub logoPolytoolhubSearch tools
← Developer tools

Find your toolkit

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.
All categories
81 tools · 37–48 shown

Narrow your search

Find the right tools

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.

  • Access Web · API
METAR.ws: Metar Ws — WebSocket METAR API — connect in 3 lines
METAR.ws3.5Editorial
Data feed

Stream airport observations and station-level weather-model signals for temperature-market research without maintaining a GRIB parsing pipeline.

  • Access API
Myriad: Prediction-market cards with probabilities and category navigation
Myriad3.5Editorial
Platform

Trade outcome shares on Myriad’s AMM or order-book markets, with portfolio claims, maker rebates and developer tools for integrations.

  • Access Web · API · CLI
Octagon Ai — product overview
Octagon3.5Editorial
Research tool

Read source-linked prediction-market research, compare model probabilities with prices and access the analysis through reports, API, MCP or a trading CLI.

  • Access Web · API · CLI · MCP
OddsPipe: Cross-venue market and spread API overview.
OddsPipe3.5Editorial
Data API

Find matched Polymarket and Kalshi contracts, filter match confidence and query price differences through REST or Python.

  • Data coverage Markets · Prices · Cross-venue matches
  • Access API
Opinion — product overview
OPINION3.5Editorial
Platform

Trade macro, crypto and other outcome markets through OPINION’s order-book exchange, with maker incentives and public developer interfaces.

  • Access Web · API
OrcaLayer — wallet leaderboard and filters
OrcaLayer3.5Editorial
Analytics

Research wallet skill and consensus while filtering reward-farming activity out of the results.

  • Access Web · Telegram · API
PMXT hosted API: PMXT API entry page and SDK example.
PMXT hosted API3.5Editorial
Data API

One hosted API key for cross-venue market search, matching, historical data and supported prediction-market trading methods.

  • Data coverage Markets · Events · Order books · Prices · Cross-venue matches
  • Access API
PolyBackTest: Historical Up/Down strategy research with a provider backtest example.
PolyBackTest3.5Editorial
Dataset

Replay crypto Up/Down markets using historical order-book depth and timestamped data.

  • Data coverage Order books · Reference prices
  • Access Web · API
PolyDesk: Service catalog for individual trades, managed agents and integration audits.
PolyDesk3.5Editorial
Infrastructure

Integrate bounded Polymarket trade requests, recurring portfolio monitoring and evidence-backed integration reviews through typed agent services.

  • Access API · Email
Polymarket Relayer API: Official account and wallet-operation setup.
Polymarket Relayer API3.5Editorial
Data API

Submit authorized wallet transactions for approvals, transfers and position operations without requiring the account to hold POL for gas.

  • Access API