# Polygoy > Casino-style crypto prediction trading on Polymarket. Bet whether BTC, ETH, or SOL goes up or down in the next 5 minutes. ## About Polygoy is a mobile-first trading interface for Polymarket's 5-minute crypto binary markets. Users predict whether a cryptocurrency's price will go up or down within a 5-minute window. ## Key Features - 5-minute crypto prediction markets (BTC, ETH, SOL) - Real-time Binance price charts - Gasless trading via Polymarket relayer - Non-custodial (Safe account per user) - Fiat onramp via Meld (card, Apple Pay, bank transfer) - Instant settlement and auto-redemption - Casino-style sound effects and animations ## How It Works 1. Pick a market (e.g., "Bitcoin Up or Down - 3:15PM ET") 2. Choose Up or Down and place your bet 3. If the price moves in your direction by market close, you win ## Markets - BTC/USD 5-minute windows - ETH/USD 5-minute windows - SOL/USD 5-minute windows Markets are created and resolved by Polymarket. Outcomes determined by real-time price data. ## API Endpoints - GET /api/polymarket/markets — Active markets with odds, token IDs, strike prices - GET /api/polymarket/past-results?symbol=BTC&interval=5m&count=10 — Recent outcomes - POST /api/onramp/quote — Get fiat-to-USDC quotes from multiple providers - POST /api/onramp/session — Create onramp checkout session ## Tech Stack - Next.js 14, React, TypeScript, Tailwind CSS - Polymarket CLOB API for order execution - Binance WebSocket for real-time price data - Safe accounts (Gnosis) for non-custodial trading - Privy for authentication ## Links - App: https://polyhouse.vanga.xyz/mobile - How It Works: https://polyhouse.vanga.xyz/how-it-works - Markets: https://polyhouse.vanga.xyz/markets - FAQ: https://polyhouse.vanga.xyz/faq - About: https://polyhouse.vanga.xyz/about