Bearer Token is Duplicated in HTTP Request Node (WHAPI Integration)

Questions
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1

Hi n8n team :wave:

I’m integrating with WHAPI.Cloud, using a simple POST request to:

arduino

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https://gate.whapi.cloud/messages/text

When I configure the HTTP Request node in n8n and set authentication to Generic Credential Type → Bearer Auth , I insert my valid token (e.g., nyyLaqOfJMBeYkotyxkL65b3dj19GUY ).

The problem is that after saving the credential and running the workflow, n8n duplicates the token in the final Authorization header — resulting in a malformed request that looks like this:

http

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Authorization: Bearer Bearer nyyLaqOfJMBeYkotyxkL685b3dj19GUY

This causes a 401 Unauthorized error from the WHAPI API.

:white_check_mark: I’ve confirmed that:

  • The token is valid (tested directly in Postman – works fine).
  • The URL and body are correct.
  • The Authorization works when I manually add the header in Send Headers .

:wrench: What I’ve Tried:

  • Created a new Bearer Auth credential.
  • Used both “Generic Credential Type” and “HTTP Request” credential types.
  • Tried with and without “Bearer” prefix in the token.
2

Bumping, running into the same issue.

@Edit - Seems like updating to the last version should fix this