Open-source quantitative tooling,
powered by synchronized market data.

// 1. Install official TypeScript & JavaScript SDK:
// npm install @naxosdata/sdk

import { NaxosClient, Venue, StrategyType } from "@naxosdata/sdk";

// Initialize client with authenticated API key
const client = new NaxosClient({
  apiKey: process.env.NAXOS_API_KEY || "nx_live_...",
});

// 1. Search active prediction markets across venues
const markets = await client.markets.list({
  venue: Venue.POLYMARKET,
  status: "ACTIVE",
  onlyRecorded: true,
});
console.log(`Found ${markets.data.length} active recorded markets.`);

// 2. Fetch full historical L2 snapshot at millisecond timestamp
const snapshot = await client.orderbooks.snapshot({
  venue: Venue.POLYMARKET,
  marketId: "poly-fed-nov-2026",
  timestampMs: 1730000000300,
});
console.log(`Spread: ${snapshot.spread_bps} bps | Best Bid: $${snapshot.best_bid} | Best Ask: $${snapshot.best_ask}`);

// 3. Query cross-venue matched arbitrage pairs
const pairs = await client.pairs.list({ minFungibility: 80, onlyRecorded: true });
for (const pair of pairs.data.slice(0, 3)) {
  console.log(`[${pair.pair_id}] ${pair.venue_long} -> ${pair.venue_short} | Net ROI: +${pair.net_roi_pct}%`);
}

// 4. Solve Kalshi quadratic taker fee & breakeven counterpart price
const breakeven = client.tools.solveBreakeven({
  primaryPrice: 0.635,
  targetRoiPct: 1.5,
  contracts: 1000,
});
console.log(`Max Counterpart NO Price: $${breakeven.maxCounterpartPrice}`);