Finance · Local MCP server
presign-guard wallet
A wallet with spending limits for agents: pay x402 APIs, send USDC, phone approval over the limit.
What the MCP Registry states
The entry as published to the official MCP Registry (read 2026-10-04), latest version.
- Registry name
io.github.Fizzl13/presign-guard-wallet- Version
- 0.5.0
- Status
- Active
- Category
- finance
- Transport
- stdio (local process)
- Package
- npm
- Published
- 2026-10-03
- Updated
- 2026-10-03
- Publisher
- Fizzl13 (GitHub) · 5 servers with pages here
- Website
- wallet.fizzl.eu/demo
- Repository
- github.com/Fizzl13/x402-examples (folder wallet-mcp)
- Source
- Registry API entry
Packages
| Registry | Package | Version | Transport |
|---|---|---|---|
| npm | presign-guard-wallet-mcp | 0.5.0 | stdio |
How to connect presign-guard wallet
presign-guard wallet runs locally from a Node.js package published to the npm registry: presign-guard-wallet-mcp version 0.5.0. It speaks MCP over stdio, so the client starts it as a program and talks to it through standard input and output. It needs Node.js; clients usually start it with npx — the usual command is npx -y presign-guard-wallet-mcp@0.5.0. It reads these environment variables: AGENT_KEY (required, secret), LIMIT_USDC_PER_TX, LIMIT_USDC_PER_DAY, TELEGRAM_BOT_TOKEN (secret), TELEGRAM_CHAT_ID, WALLET_SERVER_URL, WALLET_SERVER_KEY (secret), CHAIN, MAX_PAYMENT_USD, PRESIGN_CREDIT_KEY (secret) and RPC_URL; set them in the client's configuration for this server.
In the mcpServers JSON format that many desktop and editor MCP clients read, the entry looks like this (placeholders in angle brackets):
{
"mcpServers": {
"presign-guard-wallet": {
"command": "npx",
"args": [
"-y",
"presign-guard-wallet-mcp@0.5.0"
],
"env": {
"AGENT_KEY": "<secret>",
"LIMIT_USDC_PER_TX": "<value>",
"LIMIT_USDC_PER_DAY": "<value>",
"TELEGRAM_BOT_TOKEN": "<secret>",
"TELEGRAM_CHAT_ID": "<value>",
"WALLET_SERVER_URL": "<value>",
"WALLET_SERVER_KEY": "<secret>",
"CHAIN": "<value>",
"MAX_PAYMENT_USD": "<value>",
"PRESIGN_CREDIT_KEY": "<secret>",
"RPC_URL": "<value>"
}
}
}
}Derived from the registry entry, not tested here. What the server does, and on what terms, is set by its publisher; check its repository or website before giving it access to your accounts or files. How to add an MCP server to an assistant · Before you connect
More from Fizzl13 (GitHub)
| Server | Runs |
|---|---|
| Ichimoku SignalFree Ichimoku trend; paid confluence, levels, market scan and liquidity-ranked setups via x402. | Remote · HTTP |
| PlainText Wallet Approval CheckerChecks a wallet's token/NFT approvals via GoPlus and explains risk in plain language. | Remote · HTTP |
| presign-guardPre-sign, token and approval checks for agents: green/orange/red for signatures, tokens, wallets. | Remote · HTTP |
| x402 DoctorCheck x402 endpoints like a paying agent: diagnose, fix plans, pre-payment checks. Free quick check. | Remote · HTTP |
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| Presidio Hardened X402 MCPPre-payment safety gate for x402 agents: PII screening, spend policy, replay checks before signing. | Local · stdio |
| PressureDeskRead-only BUY / WAIT / AVOID spend gate for paid APIs, MCP endpoints, and x402 routes. | Remote · HTTP |
| PrestaShop MCP ConnectorQuery a PrestaShop store from an AI assistant: orders, invoices, unpaid orders, customers, stock. | Remote · HTTP |
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| PriceFeedReal-time & historical crypto and fiat exchange rates, median-aggregated from multiple sources. | Remote · HTTP |