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

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

pip install pmxt

npm install pmxtjs

Prediction markets are structured in a hierarchy to group related information.

• Event: The broad topic (e.g., "Who will Trump nominate as Fed Chair?")
• Market: A specific tradeable question (e.g., "Will Trump nominate Kevin Warsh as the next Fed Chair?")
• Outcome: The actual share you buy (e.g., "Yes" or "No")

import pmxt

api = pmxt.Polymarket()

# 1. Search for the broad Event
events = api.search_events('Who will Trump nominate as Fed Chair?')
fed_event = events[0]

# 2. Search for the specific Market within that event
warsh = fed_event.search_markets('Kevin Warsh')[0]

print(f"Price: {warsh.yes.price}")

import pmxt from 'pmxtjs';

const api = new pmxt.Polymarket();

// 1. Search for the broad Event
const events = await api.searchEvents('Who will Trump nominate as Fed Chair?');
const fedEvent = events[0];

// 2. Search for the specific Market within that event
const warsh = fedEvent.searchMarkets('Kevin Warsh')[0];

console.log(`Price: ${warsh.yes?.price}`);

• Polymarket
• Kalshi

pmxt supports unified trading across exchanges.

To trade, you must provide your private credentials.

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

import pmxt
import os

exchange = pmxt.Polymarket(
    private_key=os.getenv('POLYMARKET_PRIVATE_KEY')
)

# 1. Check Balance
balance = exchange.fetch_balance()
print(f"Available USDC: {balance[0].available}")

# 2. Place an Order
# Use unique outcome IDs from market.outcomes
order = exchange.create_order(
    market_id='market-123',
    outcome_id='outcome-456',
    side='buy',
    type='limit',
    price=0.33,
    amount=100
)
print(f"Order Status: {order.status}")

See the API Reference for detailed documentation and more examples.

Check out the directory for more use cases:

TypeScript Python