Voice AI agent tools

V

Voiceloop

voiceOpen source

Zero-dependency JS library for an interruptible in-browser voice loop (VAD, STT, LLM, TTS).

C

Cicero

voiceOpen source

Self-hosted voice interface for coding agents (Claude Code, Codex, ACP); talk from a browser or Telegram call.

T

TryVoice

voiceOpen source

Hands-free voice runtime for coding agents with wake word, push-to-talk and streaming replies.

L

LiveKit Agents

voiceOpen source + cloud

Real-time voice and video infrastructure with an agents framework.

P

Pipecat

voiceOpen source

Open-source framework for voice and multimodal conversational agents.

V

Vapi

voiceUsage-based

Platform for building and deploying phone voice agents.

E

ElevenLabs Agents

voiceFreemium

Voice AI platform with conversational agents and TTS.

R

Retell AI

voiceUsage-based

Builds AI phone agents for calls and support.

C

Convai

voiceFreemium

Conversational AI for virtual worlds: voice-enabled characters and agents that perceive, speak and act inside games and 3D scenes.

I

Inworld

voiceUsage-based

Platform and runtime for real-time voice AI and interactive characters, including text-to-speech and agent orchestration for consumer apps.

S

Simple Phones

voicePaid

AI phone agent that answers business calls, takes messages and books appointments.

T

Thoughtly

voicePaid

AI voice agents for inbound and outbound calls for businesses.

V

vocode

voiceOpen source + cloud

Open-source library for building voice-based LLM agents for phone calls and apps.

V

Vision Agents

voiceOpen source

Stream's open framework for building real-time voice and video agents with any model.

V

Vexa

voiceOpen source + cloud

Open-source meeting transcription API with bots for Meet, Teams and Zoom.

V

VoiceMode

voiceOpen source

Adds natural voice conversations to Claude Code and other assistants.

C

ClawCall

voiceUsage-based

AI that places phone calls for you, navigates menus, waits on hold and talks to the person who answers.

D

Deepgram

voiceUsage-based

Speech-to-text, text-to-speech and voice agent APIs for building real-time voice agents.

D

Dial

voiceUsage-based

Gives an AI agent a real phone number for calls, SMS, iMessage and WhatsApp through one API.

T

TEN Framework

voiceOpen source

Open-source framework for real-time multimodal voice agents, including the TEN Agent demo.