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mcp/harbor
Cursor

Shinjuku Shield for Cursor

io.github.shinjukustaition/shinjuku-shield

Private x402 payments on Solana: shield, pay, and unshield USDC under caps you set.

client:Cursor transport:stdio runtime:npm

Install Shinjuku Shield in Cursor

~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "shinjuku-shield": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "shinjuku-shield"
      ],
      "env": {
        "SHIELDED_WALLET_HOME": "<SHIELDED_WALLET_HOME>",
        "SHIELDED_WALLET_PASSPHRASE": "<SHIELDED_WALLET_PASSPHRASE>"
      }
    }
  }
}

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs

Shinjuku Shield in other clients

Shinjuku Shield MCP server