Groupchat Market: Prediction markets for your groupchat

Built during Frontiers

Turn your chats into prediction markets

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Example

Alice: "I bet John will be late to the meeting again"
Bob: /new Will John arrive on time to the 3pm meeting?
Bot: ✅ Market #1 created: Will John arrive on time to the 3pm meeting?
Alice: /bet 1 no 500
Bob: /bet 1 yes 100
Charlie: /bet 1 no 200

[Later at 3:05pm]
John: "Sorry guys, traffic was terrible"
Alice: /solve 1 [replying to John's message]
Bot: ✅ MARKET RESOLVED: NO wins
     🤖 AI Analysis: "John apologized for being late, confirming he did not arrive on time"
     💰 Payouts: Alice +750, Charlie +300

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Architecture

Everything: bot, server and the contract are written in Rust. The contract is a vApp proven on a zkVM.

This proof is used for settlement on Hyli, a blockchain where every app is a vApp and where the execution is offchain, the consensus is only verifying the proof

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Getting Started

Prerequisites

• Rust toolchain (latest stable)
• Telegram Bot Token (from @BotFather)
• Claude API Key (from Anthropic)
• Hyli node (see Hyli docs for setup)

1. Run the Hyli Node

Follow the official documentation at docs.hyli.org to set up and run a Hyli node.

2. Build the Contract

# Clone the repository
git clone https://github.com/MatteoMer/groupchat-market.git
cd groupchat-market

# Build the contract (fast/local build)
cd contracts
cargo build --features nonreproducible,contract1

# Or for reproducible build (slower, uses Docker)
cargo build --features build,contract1

3. Run the Server

# From project root
RISC0_DEV_MODE=1 SP1_PROVER=mock cargo run -p server

# Server will start on port 4001 by default

4. Run the Telegram Bot

# Set required environment variables
export TELOXIDE_TOKEN="your_telegram_bot_token"
export CLAUDE_API_KEY="your_claude_api_key"

# Run the bot
cargo run -p bot

# The bot will connect to the server at localhost:4001

Configuration

• Edit config.toml to customize ports and settings
• Server config can be overridden with HYLE_ prefixed environment variables
• Bot database is stored in bot/bot.db

License

MIT