Add own headers

[rogorido]

First of all, many thanks for the wonderful package.

I want to add 2 headers in order to transmit to OpenRouter which app is making the connectiion (https://openrouter.ai/docs/api-reference/overview). I had the follwoing:

(gptel-make-openai "OpenRouter"               ;Any name you want
  :host "openrouter.ai"
  :endpoint "/api/v1/chat/completions"
  :stream t
  :key (password-store-get "general/openrouter")
  :header '(("HTTP-Referer" . "https://github.com/karthink/gptel")
             ("X-Title" . "Emacs (gptel)"))
  :models '(deepseek/deepseek-r1:free openai/gpt-oss-20b:free)))

If I enable gptel-log-level (debug), the headers are not added to the curl request...

Any ideas?

[karthink]

I tested this and the headers are being sent as specified. So I can't reproduce the issue.

However that's not going to solve your problem, because the default :header used by the OpenAI backend needs to send the API key as well. Here's the default header:

(lambda () (when-let* ((key (gptel--get-api-key)))
                   `(("Authorization" . ,(concat "Bearer " key)))))

You need to set the header to a function or to an alist (like you do) that includes the bearer key.

For easy debugging and access to the payload, run (setq gptel-expert-commands t), then pick the dry-run option from gptel's menu. In the inspection window that pops up you can copy the Curl command to the clipboard.

[rogorido]

Wonderful! It works! Thanks a lot!