What is your goal?
I am trying to send text from an OpenAI module in Make to the ElevenLabs Text-to-Speech API using the HTTP module and receive an audio response.
What is the problem & what have you tried?
I am receiving an “Unauthorized” error in the HTTP module when calling the ElevenLabs API.
Setup:
- Webhook → OpenAI → HTTP (ElevenLabs)
- Method: POST
- URL: https://api.elevenlabs.io/v1/text-to-speech/QnDDX3P0dwr49f4ubkn5
Headers:
- xi-api-key: new API key generated in ElevenLabs
- Content-Type: application/json
- Accept: audio/mpeg
Body:
{
“text”: “{{2.Result}}”,
“model_id”: “eleven_multilingual_v2”
}
What I’ve tried:
- Generated multiple new API keys
- Re-entered headers manually (no copy/paste issues)
- Turned off header mapping
- Tested with static text instead of mapped data
- Confirmed webhook and OpenAI modules are working correctly
The HTTP module still returns “Unauthorized” consistently.
I am unsure if this is:
- an issue with how Make sends headers
- an authentication issue with ElevenLabs
- or a configuration issue on my end
Any guidance would be appreciated.
Error messages or input/output bundles
HTTP module response:
Status: 401 Unauthorized
Response body:
{
“detail”: “Unauthorized”
}
Additional info:
- The request is being sent from Make’s HTTP module
- API key is included in headers as “xi-api-key”
- The same key was regenerated multiple times
- No other error details are returned
