presign-guard wallet MCP Server

by fizzl13io.github.Fizzl13/presign-guard-walletv0.13.1

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

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Install presign-guard wallet MCP server

claude mcp add wallet -e AGENT_KEY='<agent-key>' -e TELEGRAM_BOT_TOKEN='<telegram-bot-token>' -e WALLET_SERVER_KEY='<wallet-server-key>' -e PRESIGN_CREDIT_KEY='<presign-credit-key>' -e ALGORAND_MNEMONIC='<algorand-mnemonic>' -e XRPL_SEED='<xrpl-seed>' -- npx -y presign-guard-wallet-mcp

{
  "mcpServers": {
    "wallet": {
      "command": "npx",
      "args": [
        "-y",
        "presign-guard-wallet-mcp"
      ],
      "env": {
        "AGENT_KEY": "<agent-key>",
        "TELEGRAM_BOT_TOKEN": "<telegram-bot-token>",
        "WALLET_SERVER_KEY": "<wallet-server-key>",
        "PRESIGN_CREDIT_KEY": "<presign-credit-key>",
        "ALGORAND_MNEMONIC": "<algorand-mnemonic>",
        "XRPL_SEED": "<xrpl-seed>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "wallet": {
      "command": "npx",
      "args": [
        "-y",
        "presign-guard-wallet-mcp"
      ],
      "env": {
        "AGENT_KEY": "<agent-key>",
        "TELEGRAM_BOT_TOKEN": "<telegram-bot-token>",
        "WALLET_SERVER_KEY": "<wallet-server-key>",
        "PRESIGN_CREDIT_KEY": "<presign-credit-key>",
        "ALGORAND_MNEMONIC": "<algorand-mnemonic>",
        "XRPL_SEED": "<xrpl-seed>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "wallet": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "presign-guard-wallet-mcp"
      ],
      "env": {
        "AGENT_KEY": "<agent-key>",
        "TELEGRAM_BOT_TOKEN": "<telegram-bot-token>",
        "WALLET_SERVER_KEY": "<wallet-server-key>",
        "PRESIGN_CREDIT_KEY": "<presign-credit-key>",
        "ALGORAND_MNEMONIC": "<algorand-mnemonic>",
        "XRPL_SEED": "<xrpl-seed>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "wallet": {
      "command": "npx",
      "args": [
        "-y",
        "presign-guard-wallet-mcp"
      ],
      "env": {
        "AGENT_KEY": "<agent-key>",
        "TELEGRAM_BOT_TOKEN": "<telegram-bot-token>",
        "WALLET_SERVER_KEY": "<wallet-server-key>",
        "PRESIGN_CREDIT_KEY": "<presign-credit-key>",
        "ALGORAND_MNEMONIC": "<algorand-mnemonic>",
        "XRPL_SEED": "<xrpl-seed>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
AGENT_KEY	yes	yes	Private key of the agent's own wallet (a separate wallet holding only what the agent may spend)
LIMIT_USDC_PER_TX	—	—	Most USDC per payment or transfer without asking you, e.g. 5
LIMIT_USDC_PER_DAY	—	—	Daily USDC budget, e.g. 20
TELEGRAM_BOT_TOKEN	—	yes	Telegram bot that asks you to approve anything over a limit
TELEGRAM_CHAT_ID	—	—	Your Telegram chat id (approvals go only there)
WALLET_SERVER_URL	—	—	Instead of LIMIT_* and TELEGRAM_*: a wallet server keeping one budget for all your agents
WALLET_SERVER_KEY	—	yes	The agent key (awk_…) from the wallet server's dashboard
CHAIN	—	—	base (default), ethereum, optimism, arbitrum, polygon or bsc
MAX_PAYMENT_USD	—	—	Most a single x402 API call may cost, in dollars (default 1)
PRESIGN_CREDIT_KEY	—	yes	Optional presign-guard credit key (pgc_…) to pay the $0.01 checks from prepaid credits
RPC_URL	—	—	Optional RPC URL for the chain
TEMPO	—	—	off to never pay MPP charges on Tempo (default on: paid in USDC.e on Tempo from the same address)
TEMPO_CHAIN	—	—	4217 (Tempo, default) or 42431 (Moderato testnet)
TEMPO_RPC_URL	—	—	Optional Tempo RPC URL
MPP_SESSION_DEPOSIT	—	—	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
ALGORAND_MNEMONIC	—	yes	Optional: the agent's own Algorand account (25 words); pays x402 offers in USDC on Algorand (counted toward the USDC limits)
ALGORAND_NETWORK	—	—	mainnet (default) or testnet
XRPL_SEED	—	yes	Optional: the agent's own XRPL account seed; pays x402 offers in RLUSD on the XRP Ledger (counted toward the USDC limits)
XRPL_NETWORK	—	—	mainnet (default) or testnet
XRPL_WS_URL	—	—	Optional XRPL node websocket URL

Freshness

Active — last maintenance signal 1d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-10-08 · 1d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-10-08 · 1d ago · official registry · v0.13.1

FAQ

›How do I install the presign-guard wallet MCP server in Claude Code?

Run: claude mcp add wallet -e AGENT_KEY='<agent-key>' -e TELEGRAM_BOT_TOKEN='<telegram-bot-token>' -e WALLET_SERVER_KEY='<wallet-server-key>' -e PRESIGN_CREDIT_KEY='<presign-credit-key>' -e ALGORAND_MNEMONIC='<algorand-mnemonic>' -e XRPL_SEED='<xrpl-seed>' -- npx -y presign-guard-wallet-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does presign-guard wallet require an API key?

Yes. It expects AGENT_KEY, TELEGRAM_BOT_TOKEN, WALLET_SERVER_KEY, PRESIGN_CREDIT_KEY, ALGORAND_MNEMONIC, XRPL_SEED, of which 6 are secrets.

›Can I use presign-guard wallet as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is presign-guard wallet in the official MCP registry?

Yes, as io.github.Fizzl13/presign-guard-wallet.