Yes. Have you cheched livekit? Vapi is also built on media framework by daily.co. They have an open source version of voice ai called pipecat. You can check it over github.

Livekit feels more or less for media handling then building voice agent. Last i checked retellai was using livekit.

Piecat is good project i had used for building voice agents but not enterprise ready need to do lot of work to deploy.

There was also a huggingface voice ai project on github. You can also check that.

Tenframework by Agora.

Thanks, Looks similar to livekit. but looks decent as it is build by CX company.

Have you used it in production? Cost of running at scale / experience?

Hey we built dograh for exactly this - FOSS workflow builder for voice agents https://github.com/dograh-hq/dograh Ping us on slack if you want to discuss anything