Request support for Claude's custom base url

The idea is:

To add support for custom base URLs in the Claude integration within n8n’s AI Agent node. This would allow users to specify alternative endpoints when connecting to Claude’s API.

My use case:

I currently operate a proxy service for Claude API requests and need to direct API calls through my custom endpoint rather than Anthropic’s default endpoint. Without this feature, I’m forced to fork n8n to modify the base URL, which creates maintenance challenges.

I think it would be beneficial to add this because:

  1. Flexibility: Users can work with proxies, self-hosted solutions, or regional endpoints
  2. Enterprise compatibility: Many organizations use API gateways that require custom endpoints
  3. Development environment support: Enables testing against staging or development environments
  4. Reduced need for forks: Prevents users from needing to maintain custom forks just for URL changes

Any resources to support this?

Many other n8n nodes (like OpenAI) already support custom base URLs as a standard practice in API integrations.

Are you willing to work on this?

I have limited programming experience but am willing to help with testing and providing feedback. I can also explain my specific use case in more detail if needed to help with implementation.