Category

Voice Agent Platforms

Hosted platforms to build, deploy, and operate production voice AI agents.

Retell AI
Featured

Voice AI platform for phone agents with low-latency conversation and telephony integrations.

Usage-based
Vapi
Sponsored

Developer platform for building and deploying voice AI agents with telephony, STT/TTS, and orchestration.

Usage-based

Voice AI calling platform aimed at sales and customer conversations.

Subscription

Platform for building and running AI phone agents for outbound and inbound calling.

Usage-based

Open-source end-to-end voice AI agents with telephony and LLM orchestration.

OSS

Enterprise conversational AI platform with voice channel support for contact centers.

Enterprise

Conversational AI / agents product built on ElevenLabs voice models for realtime dialogue.

Usage-based

Enterprise conversational voice AI for contact centers and customer service.

Enterprise

No-code / low-code voice agent builder focused on business phone workflows.

Subscription

Realtime multimodal voice AI platform for low-latency conversational agents.

Usage-based

Open-source and hosted toolkit for building voice agents over phone and web.

OSS + hosted

Collaborative platform to design and launch conversational agents across channels including voice.

Subscription