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mcp/harbor
Grok

polymarket guard for Grok

io.github.evidai/polymarket-guard

Polymarket prediction markets — buy/sell positions in USDC. LemonCake pay-per-call billing.

client:Grok transport:stdio runtime:npm

Install polymarket guard 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": {
    "polymarket-guard": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "polymarket-guard-mcp"
      ],
      "env": {
        "POLYMARKET_PRIVATE_KEY": "<POLYMARKET_PRIVATE_KEY>",
        "LEMON_CAKE_BUYER_JWT": "<LEMON_CAKE_BUYER_JWT>"
      }
    }
  }
}

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

polymarket guard in other clients

polymarket guard MCP server