n8n - 💡(How to fix) Fix OpenAI API Keys - connection error

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Error Message

Describe the problem/error/question

What is the error message (if any)?

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<!-- Please follow the template below. Skip the questions that are not relevant to you. -->

Describe the problem/error/question

Attempting to make a credential for OpenAI and it keeps erroring out

What is the error message (if any)?

Couldn’t connect with these settings config.headers.setContentType is not a function

Please share your workflow/screenshots/recording

core

used v1 and v0 legacy

Generated at: 2026-05-08T16:08:58.863Z

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