ElevenLabs text-to-speech. Pay per character synthesized.
curl https://oneapikey.app/v1/v1/text-to-speech \
-H "Authorization: Bearer $ONEAPIKEY_API_KEY" \
-H "X-APIMarket-Product: elevenlabs-tts" \
-H "Content-Type: application/json" \
--data '{"model":"elevenlabs/elevenlabs-tts","messages":[{"role":"user","content":"hi"}]}'