VAPI•3mo ago

401 error

ElevenLabs integration keeps returning 401. Error I have Confirmed my API key is set correctly in environment variables.
• Verified the key works for other endpoints (non-TTS).
• Double-checked that the Authorization header is formatted correctly.
Likely need tts on my account

Vapi Support BotAPP•9/23/25, 12:23 PM

Suggestion:
A 401 error with ElevenLabs TTS is often due to your API subscription not including TTS access, even if your key works for other endpoints. Please visit the ElevenLabs pricing page and ensure your account has an active API plan that includes TTS. Once upgraded, retry your integration—this usually resolves the 401 error for TTS requests.

Source:

ElevenLabs Custom Voice Integration Guide

⤵️ Mention @Vapi Support Bot for follow-ups 🐥

sour-pinkOP•9/23/25, 12:56 PM

So I just upgraded my eleven labs to creator. When I try to connect to vapi putting in my api key it still doesn’t work still shows up with a 401 error

KyleAPP•9/25/25, 8:50 AM

Can you please verify your API key by using their API documentation try ittry it page?

https://elevenlabs.io/docs/api-reference/voices/search?explorer=true

401 error

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