Start in 60 Seconds

Choose your version of Claude below. No downloads required for Claude.ai!

The Easiest Way - No Downloads Required!

Step 1: Go to Claude.ai

Open claude.ai in your browser and sign in to your account.

  • Requires Pro, Max, Team, or Enterprise account (not available on Free plan)
  • Use any modern browser (Chrome, Firefox, Safari, Edge)
Claude.ai sign-in page

Step 2: Open Settings

  1. Click your profile icon (bottom left corner)
  2. Select "Settings" from the menu
  3. Look for "Connectors" section
Claude Settings showing Connectors section

Step 3: Add Our Custom Connector

In the Connectors section, click "Add custom connector" and enter these details:

Click "Save" to add the connection.

Add custom connector dialog with UK Companies details

Step 4: Start Using It!

That's it! No restart needed. Test it by asking Claude:

"Tell me about Tesco PLC"

Claude will automatically use the UK company data to provide comprehensive information.

Claude successfully retrieving Tesco PLC company data
Try These Queries:
  • "Is [company name] legitimate?"
  • "Should I lend money to [company]?"
  • "Compare [company A] vs [company B]"
  • "What's the financial health of [company]?"
  • "Who owns [company name]?"
For users of the Claude Desktop application

Step 1: Open Claude Desktop Settings

In Claude Desktop:

  • Mac: Claude → Settings → Add custom connector
  • Windows: File → Settings → Add custom connector
  • Look for "Connectors" section
Claude desktop connector settings

Step 3: Add Our Custom Connector

In the Connectors section, click "Add custom connector" and enter these details:

Click "Save" to add the connection.

Add custom connector dialog with UK Companies details

Step 3: Restart & Test

  1. Restart Claude Desktop
  2. Test with: "Tell me about Tesco PLC"

Claude will automatically use the UK company data to provide comprehensive information.

Claude successfully retrieving Tesco PLC company data
Try These Queries:
  • "Is [company name] legitimate?"
  • "Should I lend money to [company]?"
  • "Compare [company A] vs [company B]"
  • "What's the financial health of [company]?"
  • "Who owns [company name]?"

Troubleshooting

Can't see Custom Connector settings?
  • Make sure you have the latest version of Claude
  • Custom connector features require Pro, Max, Team, or Enterprise account
  • Try again in a few days if not available
Not getting company data?
  • Check the URL is exactly: https://mcp.companiesintheuk.co.uk
  • For Desktop: ensure you restarted the app
  • Try a simple query like "Tell me about Tesco PLC"
Need Help? Contact us through our support form or check the official Anthropic custom connectors guide.

Setup Complete! What's Next?

See Example Conversations Explore Use Cases