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Grok

Needle for Grok

net.useneedle/needle

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client:Grok transport:streamable-http

Install Needle in Grok

.mcp.json (in your project root)

{
  "mcpServers": {
    "needle": {
      "type": "http",
      "url": "https://api.useneedle.net/mcp"
    }
  }
}

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

Needle in other clients