Voice AI
10 toolsFreePopular
ElevenLabs
Ultra-realistic text-to-speech and voice cloning
FreePopular
Deepgram
Fast, accurate speech-to-text API
FreePopular
Vapi
Voice agent middleware for production phone and web agents
OSSFree
LiveKit Agents
WebRTC-first framework for real-time voice AI agents
⭐ 9,000
OSSFree
Pipecat
Open-source framework for real-time voice and multimodal AI agents
⭐ 5,000
Free
AssemblyAI
Audio intelligence API — transcription + LLM understanding
Free
Cartesia
Real-time TTS optimized for conversational AI
Free
PlayHT
TTS with instant voice cloning
Free
Retell AI
Low-latency conversational voice AI platform
Free
Hume EVI
Empathic voice TTS with sub-150ms TTFA
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