{"server":{"$schema":"https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json","name":"io.github.Fizzl13/presign-guard-wallet","description":"A wallet with spending limits for agents: pay x402 APIs, send USDC, phone approval over the limit.","title":"presign-guard wallet","repository":{"url":"https://github.com/Fizzl13/x402-examples","source":"github","subfolder":"wallet-mcp"},"version":"0.1.0","websiteUrl":"https://wallet.fizzl.eu/demo","packages":[{"registryType":"npm","identifier":"presign-guard-wallet-mcp","version":"0.1.0","transport":{"type":"stdio"},"environmentVariables":[{"description":"Private key of the agent's own wallet (a separate wallet holding only what the agent may spend)","isRequired":true,"isSecret":true,"name":"AGENT_KEY"},{"description":"Most USDC per payment or transfer without asking you, e.g. 5","name":"LIMIT_USDC_PER_TX"},{"description":"Daily USDC budget, e.g. 20","name":"LIMIT_USDC_PER_DAY"},{"description":"Telegram bot that asks you to approve anything over a limit","isSecret":true,"name":"TELEGRAM_BOT_TOKEN"},{"description":"Your Telegram chat id (approvals go only there)","name":"TELEGRAM_CHAT_ID"},{"description":"Instead of LIMIT_* and TELEGRAM_*: a wallet server keeping one budget for all your agents","name":"WALLET_SERVER_URL"},{"description":"The agent key (awk_…) from the wallet server's dashboard","isSecret":true,"name":"WALLET_SERVER_KEY"},{"description":"base (default), ethereum, optimism, arbitrum, polygon or bsc","name":"CHAIN"},{"description":"Most a single x402 API call may cost, in dollars (default 1)","name":"MAX_PAYMENT_USD"},{"description":"Optional presign-guard credit key (pgc_…) to pay the $0.01 checks from prepaid credits","isSecret":true,"name":"PRESIGN_CREDIT_KEY"},{"description":"Optional RPC URL for the chain","name":"RPC_URL"}]}]},"_meta":{"io.modelcontextprotocol.registry/official":{"status":"active","statusChangedAt":"2026-10-02T10:34:35.091853Z","publishedAt":"2026-10-02T10:34:35.091853Z","updatedAt":"2026-10-02T10:34:35.091853Z","isLatest":true}}}