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Cursor Setup

Connect Brainz Lab to Cursor IDE.

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Prerequisites

  • Cursor installed
  • Node.js 18+ installed
  • Brainz Lab API key

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Configuration

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1. Open Cursor Settings

  1. Open Cursor
  2. Go to Settings (Cmd/Ctrl + ,)
  3. Search for “MCP” or find “Claude MCP Servers”

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2. Add MCP Configuration

Add the following configuration: 
{
  "brainzlab-recall": {
    "command": "npx",
    "args": ["-y", "@brainzlab/mcp-recall"],
    "env": {
      "BRAINZLAB_API_KEY": "sk_live_xxxxxxxx"
    }
  },
  "brainzlab-reflex": {
    "command": "npx",
    "args": ["-y", "@brainzlab/mcp-reflex"],
    "env": {
      "BRAINZLAB_API_KEY": "sk_live_xxxxxxxx"
    }
  }
}

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3. Restart Cursor

Restart Cursor to load the MCP servers.

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Alternative: Config File

You can also edit the Cursor config file directly:
OSPath
macOS~/Library/Application Support/Cursor/User/settings.json
Windows%APPDATA%\Cursor\User\settings.json
Linux~/.config/Cursor/User/settings.json
Add the MCP configuration under the appropriate key.

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Usage in Cursor

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In Chat

Use the chat panel to ask about your application:
“What errors are happening in production?”

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While Coding

Ask about related logs while you’re working:
“Show me logs related to this function”

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Debugging

When debugging issues:
“Find error logs with this stack trace”

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Example Workflow

  1. Find the error:
    “What errors happened in the last hour?”
  2. Get details:
    “Show me the full stack trace for the PaymentError”
  3. Find related logs:
    “Show me logs from the same request that caused this error”
  4. Fix the code:
    “Help me fix this error based on what you see”
  5. Resolve:
    “Mark this error as resolved”

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Best Practices

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Be Specific

# Good
"Show me error logs from checkout in the last hour"

# Less useful
"Show me errors"

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Include Context

# Good
"Find logs for user 123 during their failed checkout"

# Less useful
"Find user logs"

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Use for Context

When working on a bug, ask Claude to fetch relevant logs before you start fixing.

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Troubleshooting

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MCP Not Working

  1. Check if Node.js is installed: node --version
  2. Verify the config syntax
  3. Restart Cursor completely
  4. Check Cursor’s output panel for errors

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Slow Responses

The first query may be slow as npm downloads the package. Subsequent queries should be faster.