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mcp/harbor
Grok

whale data mcp for Grok

io.github.predgeai/whale-data-mcp

Signed settled outcomes (Polymarket, sports, Kalshi) + whale signals as agent tools, paid via x402.

client:Grok transport:stdio runtime:npm

Install whale data 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": {
    "whale-data-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@predge/whale-data-mcp"
      ],
      "env": {
        "BUYER_PRIVATE_KEY": "<BUYER_PRIVATE_KEY>",
        "X402_NETWORK": "<X402_NETWORK>",
        "MAX_PRICE_USD": "<MAX_PRICE_USD>",
        "PREDGE_BASE_URL": "<PREDGE_BASE_URL>",
        "SOLANA_BUYER_SECRET": "<SOLANA_BUYER_SECRET>",
        "X402_SOLANA_NETWORK": "<X402_SOLANA_NETWORK>",
        "SOLANA_RPC_URL": "<SOLANA_RPC_URL>"
      }
    }
  }
}

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

whale data mcp in other clients

whale data mcp MCP server