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Public Methods

Access market data, orderbooks, and prices.

L1 Methods

Private key authentication to create or derive API keys (L2 headers).

L2 Methods

Manage and close orders. Creating orders requires signer.

Builder Program Methods

Builder-specific operations for those in the Builders Program.

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Client Initialization by Use Case

  • Get Market Data
  • Generate User API Credentials
  • Create and Post Order
  • Get Builders Orders
// No signer or credentials needed
const client = new ClobClient(
  "https://clob.polymarket.com", 
  137
);

// All public methods available
const markets = await client.getMarkets();
const book = await client.getOrderBook(tokenId);
const price = await client.getPrice(tokenId, "BUY");

​
Resources

TypeScript Client

Open source TypeScript client on GitHub

Python Client

Open source Python client for GitHub

TypeScript Examples

TypeScript client method examples

Python Examples

Python client method examples

CLOB Rest API Reference

Complete REST endpoint documentation

Web Socket API

Real-time market data streaming