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mcp/harbor
Cursor

x402 Notary MCP for Cursor

io.github.forgemeshlabs/x402-notary-mcp

Cryptographic receipts for AI outputs on Base or Solana via x402.

client:Cursor transport:stdio runtime:npm

Install x402 Notary MCP 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": {
    "x402-notary-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@forgemeshlabs/x402-notary-mcp"
      ],
      "env": {
        "WALLET_PRIVATE_KEY": "<WALLET_PRIVATE_KEY>",
        "NOTARY_RAIL": "<NOTARY_RAIL>",
        "NOTARY_BASE_URL": "<NOTARY_BASE_URL>",
        "SOLANA_PRIVATE_KEY": "<SOLANA_PRIVATE_KEY>"
      }
    }
  }
}

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

x402 Notary MCP in other clients

x402 Notary MCP MCP server