ElevenLabs API

ElevenLabs offers realistic AI voices: turn text into speech in many languages and voices, clone a voice, transcribe speech to text, create sound effects and dub audio into other languages, through its REST API and SDKs. Audio comes back as MP3 or other formats. Free plan with 10,000 credits per month (about 10 minutes of speech), for non-commercial use only and with attribution to ElevenLabs; paid plans for commercial use.