Issue with Custom Actions – "token" header not detected, need help!

API
1

Hey everyone,

I’m dealing with a frustrating issue while using Custom Actions in OpenAI. I’m trying to send an API request with an API key through a custom header named token to access an external API (a Git API on a private server).

Here’s what I’ve done so far:

  • I configured the authentication in OpenAI’s interface, choosing the Custom option for the header and setting token as the name.
  • I set up my schema correctly to send the token in the request header.
    When I test the API call manually using cURL, everything works fine and the token header is recognized, and the API responds as expected.

However, when I try to run the same request through a Custom Actions, it doesn’t seem to send the token header at all. I keep getting 401 errors from the server, saying authentication is required, even though the token is configured correctly in the interface.

Has anyone else faced this issue? Is there something I might be missing with OpenAI’s handling of custom headers? Any advice or workarounds would be greatly appreciated!

Thanks in advance!

openapi: 3.1.0
info:
  title: Private API
  description: API to fetch data with authentication via a custom "token" header.
  version: 1.0.0
servers:
  - url: https://my-private-api/api/v3
    description: Main server
paths:
  /my-endpoint/tags:
    get:
      operationId: getTags
      summary: Retrieve a list of tags
      security:
        - api_key: []  # Refers to the custom 'token' header defined below
      responses:
        '200':
          description: A list of tags.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Tag'
      tags:
        - Tags
components:
  securitySchemes:
    api_key:
      type: apiKey
      in: header
      name: token  # Uses a custom header called "token"
  schemas:
    Tag:
      type: object
      properties:
        name:
          type: string