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Shieldz MCP Server

Developer ToolsModerate6.2MCP RegistryLocalRemote
Free

Server data from the Official MCP Registry

Keyless non-custodial crypto payments for AI agents: payment links and tip jars, no API key.

About

Keyless non-custodial crypto payments for AI agents: payment links and tip jars, no API key.

Remote endpoints: streamable-http: https://shieldz.cash/mcp

Security Report

6.2
Moderate6.2Moderate Risk

This is a well-structured MCP server for crypto payments with proper authentication design and input validation. The server correctly treats API keys as optional and separates keyless tools from authenticated ones. Permissions align well with its stated purpose—it makes HTTPS calls to Shieldz and reads environment variables for optional credentials. No dangerous patterns detected. Supply chain analysis found 2 known vulnerabilities in dependencies (0 critical, 2 high severity). Package verification found 1 issue.

3 files analyzed · 6 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

env_vars

Check that this permission is expected for this type of plugin.

HTTP Network Access

Connects to external APIs or services over the internet.

What You'll Need

Set these up before or after installing:

Optional. Set a sk_live_/sk_test_ key to additionally enable full invoice management tools. Omit for keyless mode.Required

Environment variable: SHIELDZ_API_KEY

How to Install & Connect

Available as Local & Remote

This plugin can run on your machine or connect to a hosted endpoint. during install.

Documentation

View on GitHub

From the project's GitHub README.

@shieldz/mcp

npm

Model Context Protocol (MCP) server for Shieldz. Lets an AI agent (Claude, etc.) accept non-custodial crypto payments.

Funds always settle to the wallet address you provide. Shieldz never holds your keys.

Keyless tools (no account, no API key)

Give a destination wallet address and start accepting crypto in one call:

  • create_payment_link — a one-time payment link (shareable URL + embeddable button + QR). Args: address, amount_usd, optional chain (default base), asset (default USDC), memo, email.
  • create_tip_jar — a reusable "pay what you want" page; the payer chooses the amount. Args: address, optional chain, asset, title, suggested_amounts_usd, slug, email.
  • get_account_status — look up settlement details, tip jars, totals, and invoices by manage_token.

These work with zero configuration. Pass an optional email so the owner can claim a full dashboard later via magic link.

Remote (no install) — point any MCP client at the hosted server:

{ "mcpServers": { "shieldz": { "url": "https://shieldz.cash/mcp" } } }

Local (stdio) — run via npx:

{
  "mcpServers": {
    "shieldz": {
      "command": "npx",
      "args": ["-y", "@shieldz/mcp"]
    }
  }
}

API-key tools (full merchant account)

Set SHIELDZ_API_KEY to additionally enable richer invoice management: create_invoice, get_invoice, list_invoices.

{
  "mcpServers": {
    "shieldz": {
      "command": "npx",
      "args": ["-y", "@shieldz/mcp"],
      "env": { "SHIELDZ_API_KEY": "sk_live_…" }
    }
  }
}

Get an API key from your merchant dashboard → Developers.

Environment

  • SHIELDZ_API_KEY (optional) — enables the invoice tools. Omit for keyless mode.
  • SHIELDZ_BASE_URL (optional) — defaults to https://shieldz.cash.

License

MIT © Deniz Yanbollu / Shieldz

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