presign-guard wallet

io.github.Fizzl13/presign-guard-wallet

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

View repository →Homepage →

Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "presign-guard-wallet": {
      "command": "npx",
      "args": [
        "-y",
        "presign-guard-wallet-mcp@0.30.0"
      ],
      "env": {
        "AGENT_KEY": "<your AGENT_KEY>",
        "TELEGRAM_BOT_TOKEN": "<your TELEGRAM_BOT_TOKEN>",
        "WALLET_SERVER_KEY": "<your WALLET_SERVER_KEY>",
        "PRESIGN_CREDIT_KEY": "<your PRESIGN_CREDIT_KEY>",
        "SOLANA_PRIVATE_KEY": "<your SOLANA_PRIVATE_KEY>",
        "ALGORAND_MNEMONIC": "<your ALGORAND_MNEMONIC>",
        "XRPL_SEED": "<your XRPL_SEED>"
      }
    }
  }
}
Environment variables
  • AGENT_KEYrequiredsecretPrivate key of the agent's own wallet (a separate wallet holding only what the agent may spend)
  • TELEGRAM_BOT_TOKENsecretTelegram bot that asks you to approve anything over a limit
  • WALLET_SERVER_KEYsecretThe agent key (awk_…) from the wallet server's dashboard
  • PRESIGN_CREDIT_KEYsecretOptional presign-guard credit key (pgc_…) to pay the $0.01 checks from prepaid credits
  • SOLANA_PRIVATE_KEYsecretOptional: 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)
  • ALGORAND_MNEMONICsecretOptional: the agent's own Algorand account (25 words); pays x402 offers in USDC on Algorand (counted toward the USDC limits)
  • XRPL_SEEDsecretOptional: the agent's own XRPL account seed; pays x402 offers in RLUSD on the XRP Ledger (counted toward the USDC limits)

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
0.30.0
Registry
active
Published
10/31/2026

Remotes

  • streamable-httphttps://wallet.fizzl.eu/mcp

More Developer Tools servers

Browse all Developer Tools →

x402 Doctor

Fizzl13

Is this x402/MPP API safe to pay? $0.001 preflight, fixes, a $0.25 test purchase. Free quick check.

Developer ToolsAdded 4 weeks ago

io.github.fjacquet/nano-banana-mcp

fjacquet

AI image generation and editing with Google Gemini: Nano Banana 2.1, Pro and Lite models

Developer ToolsAdded 1 month ago

io.github.fjnunezp75/gpu-bridge

gpu-bridge

30 GPU-powered AI services as MCP tools. LLM, image, video, audio, embeddings & more.

Developer ToolsAdded 7 months ago

llmtrim

fkiene

MCP server and proxy that compresses LLM prompts, tool output, and replies to cut token cost.

Developer ToolsAdded 2 months ago

io.github.fkom13/gencodedoc

fkom13

Versioning de code et génération de documentation intelligents. Supporte CLI, API REST, et MCP.

Developer ToolsAdded 12 months ago

io.github.fkom13/mcp-sftp-orchestrator

fkom13

Serveur MCP pour l'orchestration de tâches distantes (SSH/SFTP) avec une file d'attente persistante.

Developer ToolsAdded 12 months ago

Add the badge to your site

Show visitors that presign-guard wallet is listed here — it’s also the link we check for a free listing.

presign-guard wallet — listed on Serverdex

HTML — for your website

<a href="https://serverdex.io/server/io-github-fizzl13-presign-guard-wallet?utm_source=badge"><img src="https://serverdex.io/brand/badge.svg" alt="presign-guard wallet — listed on Serverdex" width="123" height="40" loading="lazy"></a>

Recommended. A dofollow link from your own domain is the one that counts for search engines, and it's the link we check for a free listing.

Markdown — for your README

[![presign-guard wallet — listed on Serverdex](https://serverdex.io/brand/badge.svg)](https://serverdex.io/server/io-github-fizzl13-presign-guard-wallet?utm_source=badge)

Nice for visibility, but GitHub marks README links nofollow, so it doesn't pass authority. Use the HTML badge on your site as well.