How do I install presign-guard wallet?

Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.

Is presign-guard wallet official?

No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.

How is the trust score calculated?

This listing scores 55 (Fair). The formula is published on the methodology page.

MCPpedia

presign-guard wallet MCP Server | MCPpedia

presign-guard wallet MCP Server

Name: presign-guard wallet MCP Server
Author: fizzl13

Agent wallet with limits: pays x402/MPP on Base, Solana, Tempo, XRPL and Algorand; phone approval.

Tools Versions Alternatives

Registryfizzl13

55Fair

Install

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "fizzl13-wallet-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "presign-guard-wallet-mcp@0.17.1"
      ],
      "env": {
        "AGENT_KEY": "YOUR_AGENT_KEY",
        "LIMIT_USDC_PER_TX": "",
        "LIMIT_USDC_PER_DAY": "",
        "TELEGRAM_BOT_TOKEN": "YOUR_TELEGRAM_BOT_TOKEN",
        "TELEGRAM_CHAT_ID": "",
        "WALLET_SERVER_URL": "",
        "WALLET_SERVER_KEY": "YOUR_WALLET_SERVER_KEY",
        "CHAIN": "",
        "MAX_PAYMENT_USD": "",
        "ALLOW_LIST": "",
        "PRESIGN_CREDIT_KEY": "YOUR_PRESIGN_CREDIT_KEY",
        "RPC_URL": "",
        "TEMPO": "",
        "TEMPO_CHAIN": "",
        "TEMPO_RPC_URL": "",
        "MPP_SESSION_DEPOSIT": "",
        "SOLANA_PRIVATE_KEY": "YOUR_SOLANA_PRIVATE_KEY",
        "SOLANA_NETWORK": "",
        "SOLANA_RPC_URL": "",
        "ALGORAND_MNEMONIC": "YOUR_ALGORAND_MNEMONIC",
        "ALGORAND_NETWORK": "",
        "XRPL_SEED": "YOUR_XRPL_SEED",
        "XRPL_NETWORK": "",
        "XRPL_WS_URL": ""
      }
    }
  }
}

Install guide

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Environment

Name	Required	Notes
AGENT_KEY	Yes	Private key of the agent's own wallet (a separate wallet holding only what the agent may spend) Secret.
LIMIT_USDC_PER_TX	No	Most USDC per payment or transfer without asking you, e.g. 5
LIMIT_USDC_PER_DAY	No	Daily USDC budget, e.g. 20
TELEGRAM_BOT_TOKEN	No	Telegram bot that asks you to approve anything over a limit Secret.
TELEGRAM_CHAT_ID	No	Your Telegram chat id (approvals go only there)
WALLET_SERVER_URL	No	Instead of LIMIT_* and TELEGRAM_*: a wallet server keeping one budget for all your agents
WALLET_SERVER_KEY	No	The agent key (awk_…) from the wallet server's dashboard Secret.
CHAIN	No	base (default), ethereum, optimism, arbitrum, polygon or bsc
MAX_PAYMENT_USD	No	Most a single x402 API call may cost, in dollars (default 1)
ALLOW_LIST	No	Optional: only pay or sign for these addresses (0x, XRPL r… or Algorand, comma-separated); anything else needs approval. Not with a wallet server
PRESIGN_CREDIT_KEY	No	Optional presign-guard credit key (pgc_…) to pay the $0.01 checks from prepaid credits Secret.
RPC_URL	No	Optional RPC URL for the chain
TEMPO	No	off to never pay MPP charges on Tempo (default on: paid in USDC.e on Tempo from the same address)
TEMPO_CHAIN	No	4217 (Tempo, default) or 42431 (Moderato testnet)
TEMPO_RPC_URL	No	Optional Tempo RPC URL
MPP_SESSION_DEPOSIT	No	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
SOLANA_PRIVATE_KEY	No	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) Secret.
SOLANA_NETWORK	No	mainnet (default) or devnet
SOLANA_RPC_URL	No	Optional Solana RPC URL
ALGORAND_MNEMONIC	No	Optional: the agent's own Algorand account (25 words); pays x402 offers in USDC on Algorand (counted toward the USDC limits) Secret.
ALGORAND_NETWORK	No	mainnet (default) or testnet
XRPL_SEED	No	Optional: the agent's own XRPL account seed; pays x402 offers in RLUSD on the XRP Ledger (counted toward the USDC limits) Secret.
XRPL_NETWORK	No	mainnet (default) or testnet
XRPL_WS_URL	No	Optional XRPL node websocket URL

presign-guard wallet MCP Server

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