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Fail-closed live-endpoint x402 router. POST /route, $0.01 USDC on Base, Solana, Algorand.
npx @getmcp/cli add io.github.402signal/402signalRequires Node.js 18+. Community-contributed server. Review source before installing.
Config file: ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"io.github.402signal/402signal": {
"url": "https://402signal.com/mcp",
"transport": "streamable-http"
}
}
}