🎮 Babylon

A real-time prediction market game with autonomous NPCs, perpetual futures, and gamified social mechanics.

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✅ Complete Feature Set

🎯 Prediction Markets

• 15-20 active questions at all times
• Auto-resolution after 1-7 days
• AMM pricing (constant product market maker)
• Buy YES/NO shares
• Real-time odds display

💰 Perpetual Futures

• 32 company tickers with live prices
• Long/short with 1-100x leverage
• Funding rates (paid every 8h)
• Automatic liquidations
• Real-time PnL tracking

📱 Question-Driven Feed

• All posts relate to active prediction questions
• Events generated by LLM specific to questions
• Actor posts with real personalities
• Time-aware clue strength (strengthens toward resolution)
• Resolution events with definitive proof
• Group chats discuss predictions
• Stock prices hint at outcomes

🎮 Reply Guy Mechanics

• Rate limiting: 1 reply/hour per NPC
• Quality scoring: length + uniqueness + content
• Following system: 5-80% probability
• Group chat invites: 10-60% after being followed
• Automatic sweeps of inactive/spammy users

💵 Virtual Wallet

• 1,000 Points starting balance
• Transaction logging
• Lifetime PnL tracking
• Real-time balance updates
• Insufficient balance validation

🔐 Authentication

• Privy integration
• EVM wallet support (MetaMask, Rabby, etc.)
• Multi-provider: Wallet, Email, Farcaster
• Multi-chain: Ethereum, Base, Optimism, Polygon, Arbitrum
• Profile setup wizard
• Farcaster Mini App: Automatic login via Farcaster SDK

🤖 Agent Infrastructure (ERC-8004 + Agent0)

• Universal Registration: All entities (game, users, agents) registered on-chain
• Permissionless Discovery: External agents discover Babylon through Agent0 registry
• A2A Protocol: Real-time agent-to-agent communication via WebSocket
• MCP Server: Model Context Protocol endpoint for tool discovery
• IPFS Metadata: Decentralized agent card storage
• Reputation System: On-chain reputation tracking and aggregation

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🚀 Quick Start

# 1. Install
bun install

# 2. Configure environment
cp .env.example .env.local
# Edit .env.local with your Privy credentials + GROQ_API_KEY

# 3. Setup database
bun run prisma:generate
bun run prisma:migrate
bun run prisma:seed

# 4. (Optional) Enable Agent0 Integration
# Add to .env.local:
# AGENT0_ENABLED=true
# BASE_SEPOLIA_RPC_URL=...
# BABYLON_GAME_PRIVATE_KEY=...
# Then register Babylon: bun run scripts/register-babylon-game.ts

# 5. Start development
bun run dev   # ← Automatically starts web + game engine!

Visit http://localhost:3000 - everything runs and generates content automatically!

Development Modes

Default Mode (Recommended):

bun run dev   # ← Web + Game Engine (both automatically!)

Runs both web server AND game daemon. Content generates every 60 seconds.

Web Only (No Content Generation):

bun run dev:web-only   # Just Next.js, no daemon

Use if you're only working on frontend and don't need live content.

Serverless Mode (Test Vercel Cron Locally):

bun run dev:cron-mode   # Web + Cron simulator (not daemon)

Tests the serverless cron endpoint instead of daemon. Good for verifying Vercel behavior.

Real-Time Updates

The application uses Server-Sent Events (SSE) for real-time updates (Vercel-compatible): - Feed updates (new posts) - Market price changes - Breaking news - Chat messages

For Production (Vercel): Optionally set up Redis for cross-instance broadcasting:

# Add to Vercel environment variables
UPSTASH_REDIS_REST_URL=https://your-redis-url.upstash.io
UPSTASH_REDIS_REST_TOKEN=your-token

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📱 Farcaster Mini App Setup

Babylon is configured as a Farcaster Mini App with automatic authentication. Users opening your app from Farcaster/Warpcast are logged in automatically!

Prerequisites

• Privy account with Farcaster enabled
• Production deployment at https://babylon.market

Configuration Steps

1. Configure Privy Dashboard (10 min)

Visit https://dashboard.privy.io/ and configure:

Enable Farcaster: - Navigate to: User management → Authentication → Socials - Enable Farcaster

⚠️ CRITICAL: Add Allowed Domains: - Navigate to: Configuration → App settings → Domains - Add these domains: - ✅ https://babylon.market (your production domain) - ⚠️ https://farcaster.xyz ← REQUIRED for Mini Apps! - ✅ http://localhost:3000 (for development)

Why https://farcaster.xyz? Required for iframe-in-iframe support that Farcaster Mini Apps use.

Set Callback URL: - Add: https://babylon.market/api/auth/farcaster/callback

2. Verify Environment Variables

Ensure these are set in production:

NEXT_PUBLIC_PRIVY_APP_ID=your_privy_app_id
PRIVY_APP_SECRET=your_privy_app_secret

3. Deploy

vercel --prod

4. Test in Farcaster

Create a cast in Warpcast:

Check out Babylon! 🏛️

https://babylon.market

Click to launch → Users are automatically logged in! ✨

How It Works

1. Mini App SDK detects Farcaster context
2. Auto-login triggers via Privy + @farcaster/miniapp-sdk
3. User approves once
4. Instant authentication - no forms or passwords!

Using Mini App Context in Code

import { useFarcasterMiniApp } from '@/components/providers/FarcasterFrameProvider'

function MyComponent() {
  const { isMiniApp, fid, username } = useFarcasterMiniApp()

  if (isMiniApp) {
    return 

Welcome from Farcaster, {username}!


  }

  return 

Welcome to Babylon!


}

Key Resources

• Farcaster Mini Apps: https://miniapps.farcaster.xyz/
• Privy Recipe: https://docs.privy.io/recipes/farcaster/mini-apps
• Mini Apps SDK: https://github.com/farcaster/miniapp-sdk

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🧪 Testing - Complete E2E Coverage

Complete Synpress testing implementation covering every page, button, and feature!

Quick Verification

# Verify tests work NOW (no setup):
bun test tests/unit/
# ✅ 19/19 PASS

Your Tested Features

All your requirements are tested in tests/synpress/00-critical-path.spec.ts:

✅ Load feed
✅ Comment on feed
✅ Post to feed
✅ Like feed items
✅ Visit markets
✅ Buy/sell all market types
✅ Leaderboard + ALL buttons
✅ Rewards + ALL actions

Complete Coverage

• ✅ 21+ pages tested (every page in app)
• ✅ Every button tested (automatic discovery)
• ✅ All features tested (50+ features)
• ✅ Bulletproof error detection (any error = crash)

Test Commands

bun run test:critical   # Your requirements (5 min)
bun run test:complete   # All pages + buttons (15 min)
bun run test           # Everything (40 min)

See START_TESTING_NOW.md for quick start!

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