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mcp/harbor
Grok

prexist for Grok

io.github.rishabhkodes/prexist

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client:Grok transport:stdio runtime:npm

Install prexist in Grok

.mcp.json (in your project root)

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{
  "mcpServers": {
    "prexist": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "prexist"
      ],
      "env": {
        "PREXIST_API_URL": "<PREXIST_API_URL>",
        "SKILLS_DIRECTORY_API_KEY": "<SKILLS_DIRECTORY_API_KEY>"
      }
    }
  }
}

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

prexist in other clients

prexist MCP server