Best voice AI agent platforms
Platforms for building, deploying and monitoring AI agents that answer and make phone calls for businesses.
3 apps, ordered by visits from AppBreakup and how often our research lists each one as an alternative. Open any app to see its alternatives.
All voice AI agent platforms
- Alternatives to Vapi
Developer platform for building, testing and running AI voice agents that handle phone calls.
Free plan + paidWeb - Alternatives to Retell AI
Platform for building AI phone agents for inbound and outbound business calls.
Free plan + paidWeb - Alternatives to Synthflow
Common questions
What are the best voice AI agent platforms?
Based on how often our research lists them as alternatives and visits from AppBreakup, the leading voice AI agent platforms right now are Vapi, Retell AI and Synthflow.
Are there free voice AI agent platforms?
Yes. Vapi (free plan + paid) and Retell AI (free plan + paid) have a free option, out of 2 free or freemium apps we track.
Which voice AI agent platforms are open source?
None of the apps in this category is open source.