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Pick giveaway and raffle winners nobody can rig — verifiable by anyone, no API key.
npx @getmcp/cli add app.promptcoin/giveaway-raffle-winner-pickerRequires Node.js 18+. Community-contributed server. Review source before installing.
Config file: ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"app.promptcoin/giveaway-raffle-winner-picker": {
"command": "npx",
"args": [
"-y",
"provably-fair-mcp"
]
}
}
}