AF
Ash Framework•5mo ago
Terris

Ash-AI MCP and Cursor

My MCP config in Cursor: 
{
  "mcpServers": {
    "tidewave": {
      "command": "/Users/foo/mcp-proxy",
      "args": [
        "http://localhost:4000/tidewave/mcp"
      ]
    },
    "ash": {
      "command": "/Users/foo/mcp-proxy",
      "args": [
        "http://localhost:4000/mcp/ash_ai"
      ]
    }
  }
}
{
  "mcpServers": {
    "tidewave": {
      "command": "/Users/foo/mcp-proxy",
      "args": [
        "http://localhost:4000/tidewave/mcp"
      ]
    },
    "ash": {
      "command": "/Users/foo/mcp-proxy",
      "args": [
        "http://localhost:4000/mcp/ash_ai"
      ]
    }
  }
}
When I enable the MCP server in Cursor, the output from my Ash app run via mix phx.server outputs the following endlessly: ``` [info] POST /mcp/ash_ai [debug] Processing with AshAi.Mcp.Router Parameters: %{"id" => "init", "jsonrpc" => "2.0", "method" => "initialize", "params" => %{"capabilities" => %{}, "clientInfo" => %{"name" => "test", "version" => "0.1.0"}, "protocolVersion" => "2025-03-26"}} Pipelines: [:mcp] [info] Sent 401 in 580µs [debug] Phoenix.Router halted in :mcp/2
Solution:
``` "ash_dev": { "command": "npx", "args": ["mcp-remote@0.1.5", "http://localhost:4000/mcp/ash"] }...
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3 Replies
ZachDaniel
ZachDaniel•5mo ago
I believe in the docs we recommend a specific proxy mcp-remote 
    "ash_dev": {
      "command": {
        "path": "npx",
        "args": ["mcp-remote@0.1.5", "http://localhost:4000/mcp/ash"],
        "env": {}
      },
      "settings": {}
    },
    "ash_dev": {
      "command": {
        "path": "npx",
        "args": ["mcp-remote@0.1.5", "http://localhost:4000/mcp/ash"],
        "env": {}
      },
      "settings": {}
    },
Terris
TerrisOP•5mo ago
sweet I wonder if that works with tidewave too I'm reading the github readmes. Maybe I need to stop doing that.
Solution
Terris
Terris•5mo ago
 "ash_dev": {
      "command": "npx",
      "args": ["mcp-remote@0.1.5", "http://localhost:4000/mcp/ash"]
  }
 "ash_dev": {
      "command": "npx",
      "args": ["mcp-remote@0.1.5", "http://localhost:4000/mcp/ash"]
  }

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