pmxt

The ccxt for prediction markets. A unified API for accessing prediction market data across multiple exchanges.

                   

Why pmxt?

Different prediction market platforms have different APIs, data formats, and conventions. pmxt provides a single, consistent interface to work with all of them.

Quickstart

Get the current price for any market in seconds.

Python

import pmxt

api = pmxt.Polymarket()
markets = api.get_markets_by_slug('who-will-trump-nominate-as-fed-chair')

warsh = next((m for m in markets if m.outcomes[0].label == 'Kevin Warsh'), None) 

print(warsh.outcomes[0].price) # price of 'Yes' outcome

Note: For TypeScript usage, see pmxtjs documentation.

Installation

Python

pip install pmxt

Node.js

npm install pmxtjs

Supported Exchanges

• Polymarket
• Kalshi

Trading

pmxt supports trading functionality (placing and cancelling orders).

Setup

To trade, you must provide your private credentials.

• Polymarket: Requires your Polygon Private Key. View Setup Guide
• Kalshi: Requires API Key & Private Key.

Trading Example

import pmxt from 'pmxtjs';

const exchange = new pmxt.Polymarket({
    privateKey: process.env.POLYMARKET_PRIVATE_KEY
});

// Check Balance
const balance = await exchange.fetchBalance();
console.log('Balance:', balance);

// Place an Order
const order = await exchange.createOrder({
    marketId: 'market-123',
    outcomeId: 'token-id-456',
    side: 'buy',
    type: 'limit',
    price: 0.50,
    amount: 100
});
console.log('Order:', order);

Documentation

See the API Reference for detailed documentation and more examples.

Examples

Check out the directory for more use cases:

TypeScript Python