CLOB Integration

Connect directly to Polymarket's Central Limit Order Book for real-time orderbook data and seamless API integration.

What is CLOB?

Polymarket uses a Central Limit Order Book (CLOB) to match buyers and sellers of outcome shares. Every market on Polymarket has two token types — YES and NO — each with a unique token ID on the Polygon blockchain.

When you trade on Polymarket, your orders go through the CLOB API, which matches them against other users' orders. The CLOB provides real-time bid/ask data, order book depth, and trade history for every active market.

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Token IDs
Each outcome (YES/NO) has a unique clob_token_id used for trading and API queries.
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Order Books
View real-time bids, asks, and spread for any market via the CLOB REST or WebSocket API.
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Fast Settlement
Trades settle on Polygon in seconds with minimal gas fees.

How to Connect

1

Generate API Keys

Go to Settings and add your Polymarket CLOB API key and secret. Free tier gets limited access; Pro and Premium unlock full orderbook data.

2

Authenticate

Your API credentials are used to sign requests and authenticate with the CLOB endpoint. The terminal handles HMAC signing automatically.

3

Start Trading

Once connected, you'll see real-time order book data, token IDs, and direct links to the CLOB for every market in the scanner.

Token Lookup

Markets with CLOB Data

Market Category YES Token ID NO Token ID Volume

Want to learn more about the Polymarket CLOB API?

📚 View CLOB API Docs