I'm getting an API connection error. How can I fix it? (original) (raw)

1. All Collections
2. Claude API and Console
3. Troubleshooting
4. I'm getting an API connection error. How can I fix it?

March 16, 2026

This error usually indicates an issue on your end, potentially related to your firewall, network, or VPN. Try these steps:

• Check if there are any firewall rules or network restrictions blocking the connection to the Claude API endpoint.
• Configure your firewall or network settings to allow the connection.
• Ensure you're not using a VPN when running the request.

If you need to contact our Support team for further assistance, you can do so by clicking on the message icon in the bottom right of our Help Center, or by clicking your initials in the lower left corner of your Claude Console account, then "Get help."

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