How do I install Shieldz?

Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does Shieldz need an API key?

The publisher lists these environment variables: SHIELDZ_API_KEY.

Shieldz

by io.github.ShieldZCash

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

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Server URL

https://shieldz.cash/mcp

Credentials from the publisher

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

Provider

Add in Claude

Claude opens with the name and URL filled in. You still confirm it there.

Claude Code

claude mcp add --transport http io.github.shieldzcash-mcp https://shieldz.cash/mcp

Run in a terminal.

Claude Desktop

{
  "mcpServers": {
    "io.github.shieldzcash-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://shieldz.cash/mcp"
      ]
    }
  }
}

claude_desktop_config.json

Step-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

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Questions

How do I install Shieldz?: Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
Does Shieldz need an API key?: The publisher lists these environment variables: SHIELDZ_API_KEY.
What transport does Shieldz use?: Shieldz is reached over HTTP.
When was Shieldz last checked?: Last checked 2026-10-21. Keyless non-custodial crypto payments for AI agents: payment links and tip jars, no API key.

@shieldz/mcp

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

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.
create_unlock — sell a digital product: a pay-to-unlock page for a file link, license key, or secret text (up to 100k chars). The buyer pays and the payload is revealed on their paid confirmation, automatically. Args: address, price_usd, payload, aup_accepted, optional title, description, chain, asset, email. (To deliver an uploaded file up to 10 MB, post multipart to /api/v1/unlocks.)
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