What is the key difference between Shinjuku Shielded and SCRIPTMASTERLABS — x402 Gateway?

Shinjuku Shielded belongs to the Finance & Fintech category with local stdio execution, while SCRIPTMASTERLABS — x402 Gateway belongs to the Finance & Fintech category with cloud HTTP/SSE execution.

How do I install Shinjuku Shielded or SCRIPTMASTERLABS — x402 Gateway in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Which MCP server has more tools and community activity?

Shinjuku Shielded lists 9 tools with 0 views and 2 GitHub stars. SCRIPTMASTERLABS — x402 Gateway lists 3 tools with 3 views and 0 GitHub stars.

Can I use both Shinjuku Shielded and SCRIPTMASTERLABS — x402 Gateway together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Shinjuku Shielded vs SCRIPTMASTERLABS — x402 Gateway

Q: Are Shinjuku Shielded and SCRIPTMASTERLABS — x402 Gateway free or paid?

Shinjuku Shielded operates under a Free / Open Source model (No auth required). SCRIPTMASTERLABS — x402 Gateway operates under a Freemium model (No auth required).

In-depth architectural comparison of the Shinjuku Shielded and SCRIPTMASTERLABS — x402 Gateway MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Shinjuku Shielded

Finance & Fintech · Local stdio

Quality: 53/100 (Good) | Auth: No auth required

SCRIPTMASTERLABS — x402 Gateway

Finance & Fintech · Remote HTTP/SSE

Quality: 76/100 (Great) | Auth: No auth required

Verdict Summary: Choose Shinjuku Shielded if you need specialized Finance & Fintech tools running via a local process. Choose SCRIPTMASTERLABS — x402 Gateway if your workspace requires Finance & Fintech integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Shinjuku Shielded when:

You need dedicated capabilities in the Finance & Fintech domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: shinjuku_setup, wallet_status, wallet_shield.

Explore Shinjuku Shielded Details

Choose SCRIPTMASTERLABS — x402 Gateway when:

You need dedicated capabilities in the Finance & Fintech domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Freemium).
Primary tools included: sml_discover, sml_status, x402_contract.

Explore SCRIPTMASTERLABS — x402 Gateway Details

Feature & Specification Comparison

Specification	S Shinjuku Shielded Finance & Fintech	S SCRIPTMASTERLABS — x402 Gateway VerifiedFinance & Fintech
Summary	Private x402 payments on Solana: shield, pay, and unshield USDC under caps you set.	Remote MCP gateway for SCRIPTMASTERLABS x402-paid tools and agent-native API access on Base, with free capability discovery and pay-per-use execution.
Category & Scope

Tools & Capabilities Breakdown

Shinjuku Shielded Tools (9)

shinjuku_setup

Asks you to confirm in your MCP client that it may create a Shinjuku Shielded wallet on this machine, and shows the caps. Then it runs the setup and switches the same server to the wallet tools. It never asks for a secret. A client that cannot ask is told to run `npx -y shinjuku-shielded setup` in…

wallet_status

Says whether the wallet is set up, and what to do next.

wallet_shield

Moves USDC from the wallet's own Solana key into your shielded balance. It is on with `--proof-tools`. `--no-shield` turns it off. Funding takes minutes: the first call starts it and returns a stage. Call again with the same `request_id` to see the stage. It never starts a second deposit. When the…

x402_discover

Searches public x402 listings (Coinbase x402 Bazaar, PayAI, Dexter, and others) on your machine and returns the sellers that match. Pays nothing. The first call takes about 15 s.

x402_preview

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Shinjuku Shielded Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "shinjuku-shielded": {
      "command": "npx",
      "args": [
        "-y",
        "shinjuku-shielded"
      ]
    }
  }
}

SCRIPTMASTERLABS — x402 Gateway Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "scriptmasterlabs-x402-gateway": {
      "url": "https://mcp-x402.onrender.com/mcp"
    }
  }
}

Frequently Asked Questions

Shinjuku Shielded is categorized under Finance & Fintech and uses a local stdio subprocess. In contrast, SCRIPTMASTERLABS — x402 Gateway belongs to Finance & Fintech using remote streaming HTTP/SSE transport. Select Shinjuku Shielded when you need capabilities focused on finance & fintech and SCRIPTMASTERLABS — x402 Gateway when you require tools for finance & fintech.

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