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mcp/harbor
Grok

nano pay for Grok

com.feeless402/nano-pay

Pay for x402-priced APIs with feeless, sub-second Nano (XNO) micropayments from a local wallet.

client:Grok transport:stdio runtime:pypi

Install nano pay in Grok

.mcp.json (in your project root) 

{
  "mcpServers": {
    "nano-pay": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "feeless402"
      ]
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

nano pay in other clients

nano pay MCP server