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mcp/harbor
Grok

circle agent stack mcp for Grok

io.github.kinance/circle-agent-stack-mcp

Circle Agent Stack for AI agents: USDC wallets, spend policies, transfers, and x402 nanopayments.

client:Grok transport:stdio runtime:npm

Install circle agent stack mcp in Grok

.mcp.json (in your project root)

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

{
  "mcpServers": {
    "circle-agent-stack-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "circle-agent-stack-mcp"
      ],
      "env": {
        "CIRCLE_API_KEY": "<CIRCLE_API_KEY>"
      }
    }
  }
}

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

circle agent stack mcp in other clients

circle agent stack mcp MCP server