{"name":"io.github.Fizzl13/presign-guard-wallet","slug":"fizzl13-presign-guard-wallet","title":"presign-guard wallet","description":"Agent wallet with limits: pays x402/MPP on Base, Solana, Tempo, XRPL and Algorand; phone approval.","url":"https://mcp.market/server/fizzl13-presign-guard-wallet","rating":null,"grade":"B","score":83,"certified":false,"status":"active","category":"ai","tags":["ai"],"presence":{"score":18,"stars":0,"forks":0,"downloads_week":null,"last_push_at":"2026-10-02T12:51:15.000Z","license":"MIT"},"uptime":{"percent":100,"checks":28,"ok":28,"last_checked_at":"2026-11-04T12:35:31.981Z","last_ok_at":"2026-11-04T12:35:31.981Z","latency_ms":865},"claimed":false,"transport":"mixed","callable_via_gateway":true,"default_price_micros":0,"repository":"https://github.com/Fizzl13/x402-examples","website":"https://wallet.fizzl.eu/demo","version":"0.30.0","remotes":[{"type":"streamable-http","url":"https://wallet.fizzl.eu/mcp"}],"packages":[{"registryType":"npm","identifier":"presign-guard-wallet-mcp","version":"0.30.0","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 Telegram: your Algorand address; approvals are signed in your own wallet over AC2 (needs the AC2 service, ac2-cli, paired with your wallet)","name":"AC2_OWNER"},{"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: only pay or sign for these addresses (0x, XRPL r… or Algorand, comma-separated); anything else needs approval. Not with a wallet server","name":"ALLOW_LIST"},{"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"},{"description":"off to never pay MPP charges on Tempo (default on: paid in USDC.e on Tempo from the same address)","name":"TEMPO"},{"description":"4217 (Tempo, default) or 42431 (Moderato testnet)","name":"TEMPO_CHAIN"},{"description":"Optional Tempo RPC URL","name":"TEMPO_RPC_URL"},{"description":"Optional: pay MPP sessions on Tempo; the USDC.e each channel deposit or top-up puts in (counted toward the USDC limits); then each call is a signed voucher","name":"MPP_SESSION_DEPOSIT"},{"description":"Optional: the agent's own Solana secret key (base58 or solana-keygen byte array); pays x402 offers in USDC on Solana (checked by presign-guard, counted toward the USDC limits)","isSecret":true,"name":"SOLANA_PRIVATE_KEY"},{"description":"mainnet (default) or devnet","name":"SOLANA_NETWORK"},{"description":"Optional Solana RPC URL","name":"SOLANA_RPC_URL"},{"description":"Optional: the agent's own Algorand account (25 words); pays x402 offers in USDC on Algorand (counted toward the USDC limits)","isSecret":true,"name":"ALGORAND_MNEMONIC"},{"description":"mainnet (default) or testnet","name":"ALGORAND_NETWORK"},{"description":"Optional: the agent's own XRPL account seed; pays x402 offers in RLUSD on the XRP Ledger (counted toward the USDC limits)","isSecret":true,"name":"XRPL_SEED"},{"description":"mainnet (default) or testnet","name":"XRPL_NETWORK"},{"description":"Optional XRPL node websocket URL","name":"XRPL_WS_URL"}]}],"tools":[],"scan":null,"grade_history":[],"reviews":[]}