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mcp/harbor
Grok

fillgate for Grok

io.github.mineloop99/fillgate

Fee-carrying trading tools for AI agents: Jupiter Ultra, Polymarket CLOB v2, Hyperliquid perps.

client:Grok transport:stdio runtime:npm

Install fillgate 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": {
    "fillgate": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@fillgate/mcp"
      ],
      "env": {
        "DRY_RUN": "<DRY_RUN>",
        "MAX_NOTIONAL_USD": "<MAX_NOTIONAL_USD>",
        "MAX_SLIPPAGE_BPS": "<MAX_SLIPPAGE_BPS>",
        "RATE_LIMIT_PER_MIN": "<RATE_LIMIT_PER_MIN>",
        "FILLGATE_VENUES": "<FILLGATE_VENUES>",
        "JUP_REFERRAL_ACCOUNT": "<JUP_REFERRAL_ACCOUNT>",
        "OPERATOR_SOLANA_SECRET_KEY": "<OPERATOR_SOLANA_SECRET_KEY>",
        "PM_BUILDER_CODE": "<PM_BUILDER_CODE>",
        "OPERATOR_EVM_PRIVATE_KEY": "<OPERATOR_EVM_PRIVATE_KEY>",
        "HL_BUILDER_ADDRESS": "<HL_BUILDER_ADDRESS>",
        "HL_TESTNET": "<HL_TESTNET>"
      }
    }
  }
}

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

fillgate in other clients

fillgate MCP server