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Best Orchestration & Agent Platforms Tools for Voice AI
Platforms and frameworks that wire STT, LLM, TTS and telephony into a working voice agent.
UNIO EDITORS’ PICKS
Orchestration & Agent Platforms
#1

Bolna
Open-source-rooted Indic voice agent platform for recruitment, sales, support.

#2
Pipecat
Open-source Python framework from Daily for building realtime voice and multimodal agents.

#3
Retell AI
Platform for building and running phone-based AI voice agents at scale.

#4
Vapi
Developer platform to build, test and deploy voice agents on any STT, LLM and TTS.



















