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mcp/harbor
Grok

arbiter for Grok

io.github.godwin105/arbiter

Is this transaction safe to sign? Decodes what it really does and answers allow, warn or block.

client:Grok transport:stdio runtime:npm

Install arbiter 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": {
    "arbiter": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@arbiterlabs/mcp"
      ],
      "env": {
        "ARBITER_URL": "<ARBITER_URL>",
        "ARBITER_PRIVATE_KEY": "<ARBITER_PRIVATE_KEY>",
        "ARBITER_MAX_SPEND_USD": "<ARBITER_MAX_SPEND_USD>",
        "ARBITER_MAX_PRICE_PER_CALL": "<ARBITER_MAX_PRICE_PER_CALL>"
      }
    }
  }
}

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

arbiter in other clients

arbiter MCP server