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mcp/harbor
Grok

Close API for Grok

city.close/close-api

Walk, bike, and transit travel times from every US census block to nearby amenities.

client:Grok transport:streamable-http tools:10

Install Close API in Grok

.mcp.json (in your project root) 

{
  "mcpServers": {
    "close-api": {
      "type": "http",
      "url": "https://mcp.close.city/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

What Grok can do once it is connected

Close API in other clients

Close API MCP server