💠 Coldstar -- Air-Gapped Solana Vault

Programmable cold-signing infrastructure for Solana. Any USB drive becomes an air-gapped cold wallet. Air-gapped signing, FairScore reputation gating, Jupiter DEX integration, and native RWA support — built for DAOs, traders, and developers who need hardware-grade security without a $200 device. By ChainLabs Technologies.

Traction

• 107 wallets created, 37 actively signing (35% retention)
• Partnerships: Superteam IE, Superteam UK, DeAura, Bonk Advisory, Jito
• Revenue: 1% transaction fee (capped at $10) + Jito staking tips + native RWA swaps

The Problem

Hardware wallets cost $50–$300, suffer data breaches, and aren't programmable. This blocks DAOs, traders, and developers from using cold security in practice.

The Solution

Air-gapped cold wallet + reputation-gated transactions + DeFi integration. Private keys never touch the network. Every outbound transfer is scored by FairScore before execution.

Create transaction online --> Sign on air-gapped USB --> Broadcast
                             Private keys NEVER touch the network

Install

git clone https://github.com/ExpertVagabond/coldstar-colosseum
cd coldstar-colosseum
pip install -r local_requirements.txt
python main.py

MCP Server (for AI agents)

npx coldstar-mcp

{
  "mcpServers": {
    "coldstar": {
      "command": "npx",
      "args": ["-y", "coldstar-mcp"],
      "env": { "SOLANA_RPC_URL": "https://api.mainnet-beta.solana.com" }
    }
  }
}

8 MCP tools: check_reputation, get_token_price, get_swap_quote, check_wallet_balance, validate_transaction, list_supported_tokens, get_portfolio, estimate_swap_cost

FairScore Reputation Gating

Every outbound transfer is gated by FairScale's FairScore API:

Tier	Score	Action	Limit
Bronze	0-19	BLOCKED	--
Silver	20-39	Warning	10 SOL
Gold	40-59	Proceed	100 SOL
Platinum	60-79	Proceed	500 SOL
Diamond	80-100	Proceed	Unlimited

Features

• Air-Gap Security -- Alpine Linux with network drivers blacklisted, QR code signing
• DeFi Integration -- Jupiter DEX routes, Pyth price feeds, SPL token support
• Reputation Gating -- FairScore blocks low-reputation recipients at infrastructure level
• DAO Governance -- Multi-sig vaults, on-chain voting, air-gapped approval
• Beautiful TUI -- Rich terminal UI with portfolio dashboard and USB flashing tool
• Agent-Friendly -- MCP server with 8 tools for autonomous wallet operations

Architecture

ONLINE DEVICE                         OFFLINE DEVICE (Air-Gapped)
+--------------------------+          +---------------------------+
| Coldstar CLI             |   QR /   | USB Cold Wallet           |
| - Check balance (RPC)   |   USB    | - Private key storage     |
| - Get prices (Pyth)     | <------> | - Transaction signing     |
| - Create unsigned txs   |          | - ZERO network access     |
| - Query Jupiter routes  |          | - Alpine Linux (<50MB)    |
+--------------------------+          +---------------------------+

Comparison

Feature	Coldstar	Hardware Wallet	Hot Wallet
Air-Gap	Yes	Yes	No
Cost	$10	$79-279	Free
Open Source	Yes	No	Varies
DeFi / Jupiter	Yes	Limited	Yes
Reputation Gating	Yes	No	No
Agent-Friendly	Yes	No	Risky
DAO Governance	Yes	No	No

Tech Stack

Layer	Technology
OS	Alpine Linux (<50MB)
Language	Python 3.11+
UI	Rich (terminal)
Blockchain	Solders (Solana Rust SDK)
DEX	Jupiter Aggregator
Oracles	Pyth Network
Reputation	FairScale FairScore API
DAO	Anchor Programs (devnet)

Deployed Infrastructure

• Coldstar DAO: Ue6Z2MBm...DJYXeat
• Voter Stake Registry: 2ueu2H3t...47ViZx

Related Projects

• solana-mcp-server-app -- Solana wallet + DeFi MCP
• solmail-mcp -- Physical mail via Solana payments
• ordinals-mcp -- Bitcoin Ordinals MCP server
• cpanel-mcp -- cPanel hosting MCP server

Contributing

1. Fork the repository
2. Create your feature branch (git checkout -b feature/my-feature)
3. Commit your changes
4. Open a Pull Request

Security Issues: Private advisory

Links

• Hackathon Project | Whitepaper | X: @buildcoldstar

License

MIT -- ChainLabs Technologies