Polymarket
Polymarket is a prediction-market platform where users trade shares representing possible outcomes of real-world events.
Market prices range from $0.00 to $1.00 and function as crowd-generated probability estimates. A price of $0.65 represents an implied probability of approximately 65 percent.
Users can follow or trade markets covering politics, sports, economics, cryptocurrency, technology, business, geopolitics, entertainment and culture.
Basic Capabilities :
No capabilities detected
Market prices range from $0.00 to $1.00 and function as crowd-generated probability estimates. A price of $0.65 represents an implied probability of approximately 65 percent.
Users can follow or trade markets covering politics, sports, economics, cryptocurrency, technology, business, geopolitics, entertainment and culture.
Basic Capabilities :
No capabilities detected
GOOD FOR
PERSONAL
Individuals who want to monitor crowd-generated probabilities, follow major events or trade based on their research and expectations.
TRADERS
Active traders who buy and sell event-outcome shares to pursue returns or manage exposure to real-world events.
MARKET MAKERS
Professional liquidity providers who maintain bids and asks, earn spreads and participate in maker-rebate or liquidity-reward programs.
RESEARCHERS
Academics, analysts and data scientists who study forecasting accuracy, collective intelligence, trader behavior and information markets.
DEVELOPERS
Developers who use Polymarket APIs, WebSocket feeds, client libraries and blockchain data to build dashboards, trading tools, alerts and automated systems.
BUSINESS
Media organizations, investors, research firms and decision-makers that use market probabilities as real-time indicators of public expectations.
AVAILABILITY
The international website is available only in supported jurisdictions. Polymarket US is a separate regulated product for eligible users in the United States.
Individuals who want to monitor crowd-generated probabilities, follow major events or trade based on their research and expectations.
TRADERS
Active traders who buy and sell event-outcome shares to pursue returns or manage exposure to real-world events.
MARKET MAKERS
Professional liquidity providers who maintain bids and asks, earn spreads and participate in maker-rebate or liquidity-reward programs.
RESEARCHERS
Academics, analysts and data scientists who study forecasting accuracy, collective intelligence, trader behavior and information markets.
DEVELOPERS
Developers who use Polymarket APIs, WebSocket feeds, client libraries and blockchain data to build dashboards, trading tools, alerts and automated systems.
BUSINESS
Media organizations, investors, research firms and decision-makers that use market probabilities as real-time indicators of public expectations.
AVAILABILITY
The international website is available only in supported jurisdictions. Polymarket US is a separate regulated product for eligible users in the United States.
FEATURES
PREDICTION MARKETS
Allows users to trade shares tied to the outcomes of future events.
REAL-TIME PROBABILITIES
Converts market prices into continuously updated probability estimates based on supply and demand.
YES AND NO SHARES
Structures most markets around binary outcomes. Winning shares become redeemable for $1.00 while losing shares become worthless.
PEER-TO-PEER TRADING
Matches buyers and sellers through an order book. Users trade with other market participants.
CENTRAL LIMIT ORDER BOOK
Supports limit orders, immediately executable orders, live bids, asks, spreads and market-depth information.
POSITION MANAGEMENT
Allows traders to sell positions before resolution when sufficient market liquidity is available.
MARKET DISCOVERY
Organizes markets across politics, sports, cryptocurrency, finance, technology, business, geopolitics, entertainment and culture.
LIVE MARKET DATA
Displays prices, trading volume, liquidity, open interest, price history and recent trades.
DECENTRALIZED RESOLUTION
Uses the UMA Optimistic Oracle to propose, challenge and finalize market outcomes.
TRANSPARENT RULES
Provides predefined resolution sources, end dates and rules explaining how each market will be settled.
SMART WALLETS
Uses blockchain-based smart wallets while simplifying transaction signing and onchain interactions.
MAKER REWARDS
Offers liquidity rewards and maker rebates to encourage deeper liquidity and narrower bid-ask spreads.
HOLDING REWARDS
Provides rewards on eligible positions according to the platform’s current reward rules.
PUBLIC MARKET DATA
Allows developers and researchers to access market information without an API key or connected wallet.
DEVELOPER PLATFORM
Provides APIs, WebSocket streams, client libraries, smart contracts and blockchain data for custom applications and automated trading systems.
Allows users to trade shares tied to the outcomes of future events.
REAL-TIME PROBABILITIES
Converts market prices into continuously updated probability estimates based on supply and demand.
YES AND NO SHARES
Structures most markets around binary outcomes. Winning shares become redeemable for $1.00 while losing shares become worthless.
PEER-TO-PEER TRADING
Matches buyers and sellers through an order book. Users trade with other market participants.
CENTRAL LIMIT ORDER BOOK
Supports limit orders, immediately executable orders, live bids, asks, spreads and market-depth information.
POSITION MANAGEMENT
Allows traders to sell positions before resolution when sufficient market liquidity is available.
MARKET DISCOVERY
Organizes markets across politics, sports, cryptocurrency, finance, technology, business, geopolitics, entertainment and culture.
LIVE MARKET DATA
Displays prices, trading volume, liquidity, open interest, price history and recent trades.
DECENTRALIZED RESOLUTION
Uses the UMA Optimistic Oracle to propose, challenge and finalize market outcomes.
TRANSPARENT RULES
Provides predefined resolution sources, end dates and rules explaining how each market will be settled.
SMART WALLETS
Uses blockchain-based smart wallets while simplifying transaction signing and onchain interactions.
MAKER REWARDS
Offers liquidity rewards and maker rebates to encourage deeper liquidity and narrower bid-ask spreads.
HOLDING REWARDS
Provides rewards on eligible positions according to the platform’s current reward rules.
PUBLIC MARKET DATA
Allows developers and researchers to access market information without an API key or connected wallet.
DEVELOPER PLATFORM
Provides APIs, WebSocket streams, client libraries, smart contracts and blockchain data for custom applications and automated trading systems.
PRICING
PLATFORM ACCESS
No monthly subscription is required to browse public markets or access public market-data APIs.
TRADING FEES
Polymarket charges taker fees on certain market categories. The protocol calculates and applies the fee when an order is matched.
Fee amounts depend on the share price and are generally highest near a 50 percent implied probability.
ZERO-FEE MARKETS
Certain categories, including qualifying geopolitics and world-event markets, may have no Polymarket trading fee.
MAKER REBATES
Trading fees help fund daily maker rebates that reward liquidity providers for maintaining deeper order books and tighter spreads.
TAKER REBATES
Eligible takers may recover part of their fees through Polymarket’s tiered taker-rebate program.
DEPOSITS AND WITHDRAWALS
Polymarket generally does not charge its own fee for supported deposits or withdrawals. Blockchain networks, payment providers, exchanges or bridging partners may apply separate fees.
DEVELOPER API
Public market-data APIs are available without a paid subscription or API key. Authenticated trading requires wallet credentials and API credentials.
No monthly subscription is required to browse public markets or access public market-data APIs.
TRADING FEES
Polymarket charges taker fees on certain market categories. The protocol calculates and applies the fee when an order is matched.
Fee amounts depend on the share price and are generally highest near a 50 percent implied probability.
ZERO-FEE MARKETS
Certain categories, including qualifying geopolitics and world-event markets, may have no Polymarket trading fee.
MAKER REBATES
Trading fees help fund daily maker rebates that reward liquidity providers for maintaining deeper order books and tighter spreads.
TAKER REBATES
Eligible takers may recover part of their fees through Polymarket’s tiered taker-rebate program.
DEPOSITS AND WITHDRAWALS
Polymarket generally does not charge its own fee for supported deposits or withdrawals. Blockchain networks, payment providers, exchanges or bridging partners may apply separate fees.
DEVELOPER API
Public market-data APIs are available without a paid subscription or API key. Authenticated trading requires wallet credentials and API credentials.
TECHSTACK
BLOCKCHAIN NETWORK
Built on Polygon for fast, low-cost and publicly verifiable blockchain settlement.
TRADING ARCHITECTURE
Uses a hybrid-decentralized Central Limit Order Book. Orders are matched offchain and settled onchain through exchange smart contracts.
COLLATERAL
Uses Polymarket USD, or pUSD, as its trading collateral. pUSD is an ERC-20 token on Polygon backed by USDC with backing enforced through smart contracts.
OUTCOME TOKENS
Represents market positions using blockchain-based conditional outcome tokens. Each complete Yes and No pair is backed by $1.00 of collateral.
SMART CONTRACTS
Uses CTF Exchange V2 contracts for order settlement and Conditional Token Framework contracts for position creation, merging and redemption.
ORDER AUTHORIZATION
Traders sign orders using their wallets. Signed orders authorize the exchange contract to execute transactions without taking custody of user funds.
MARKET RESOLUTION
Uses the UMA Optimistic Oracle. Outcomes can be proposed permissionlessly, challenged during the dispute period and escalated to UMA token-holder voting.
SMART WALLETS
Supports smart-wallet infrastructure based on Gnosis Safe and Polymarket proxy-wallet contracts.
GAMMA API
Provides public REST endpoints for discovering events, markets, categories, tags, comments, profiles, sports data and market metadata.
CLOB API
Provides endpoints for order books, prices, spreads, trades, order creation, cancellation and trading-account management.
DATA API
Provides positions, trade history, user activity, portfolio values, open interest, holders and accounting data.
WEBSOCKET API
Provides public real-time order-book and price updates alongside authenticated streams for user orders and trades.
BRIDGE AND RELAYER APIS
Support deposit addresses, withdrawal addresses, quotes, transaction status and relayed blockchain transactions.
CLIENT LIBRARIES
Provides JavaScript and TypeScript development tools, including its CLOB V2 client and integration with Ethereum-compatible libraries such as viem.
BLOCKCHAIN DATA
Makes onchain activity accessible through Polygon explorers, indexed data services and SQL-based analytics resources.
SECURITY
Uses independently audited exchange smart contracts and maintains a vulnerability-disclosure and bug-bounty program.
ARTIFICIAL INTELLIGENCE
Polymarket is primarily a financial-information and blockchain trading platform. Its probability forecasts are generated by market activity rather than an AI forecasting model.
Built on Polygon for fast, low-cost and publicly verifiable blockchain settlement.
TRADING ARCHITECTURE
Uses a hybrid-decentralized Central Limit Order Book. Orders are matched offchain and settled onchain through exchange smart contracts.
COLLATERAL
Uses Polymarket USD, or pUSD, as its trading collateral. pUSD is an ERC-20 token on Polygon backed by USDC with backing enforced through smart contracts.
OUTCOME TOKENS
Represents market positions using blockchain-based conditional outcome tokens. Each complete Yes and No pair is backed by $1.00 of collateral.
SMART CONTRACTS
Uses CTF Exchange V2 contracts for order settlement and Conditional Token Framework contracts for position creation, merging and redemption.
ORDER AUTHORIZATION
Traders sign orders using their wallets. Signed orders authorize the exchange contract to execute transactions without taking custody of user funds.
MARKET RESOLUTION
Uses the UMA Optimistic Oracle. Outcomes can be proposed permissionlessly, challenged during the dispute period and escalated to UMA token-holder voting.
SMART WALLETS
Supports smart-wallet infrastructure based on Gnosis Safe and Polymarket proxy-wallet contracts.
GAMMA API
Provides public REST endpoints for discovering events, markets, categories, tags, comments, profiles, sports data and market metadata.
CLOB API
Provides endpoints for order books, prices, spreads, trades, order creation, cancellation and trading-account management.
DATA API
Provides positions, trade history, user activity, portfolio values, open interest, holders and accounting data.
WEBSOCKET API
Provides public real-time order-book and price updates alongside authenticated streams for user orders and trades.
BRIDGE AND RELAYER APIS
Support deposit addresses, withdrawal addresses, quotes, transaction status and relayed blockchain transactions.
CLIENT LIBRARIES
Provides JavaScript and TypeScript development tools, including its CLOB V2 client and integration with Ethereum-compatible libraries such as viem.
BLOCKCHAIN DATA
Makes onchain activity accessible through Polygon explorers, indexed data services and SQL-based analytics resources.
SECURITY
Uses independently audited exchange smart contracts and maintains a vulnerability-disclosure and bug-bounty program.
ARTIFICIAL INTELLIGENCE
Polymarket is primarily a financial-information and blockchain trading platform. Its probability forecasts are generated by market activity rather than an AI forecasting model.
last update : September 12, 2026