Best Voice Agents Tools

Compare 7 top-rated voice agents tools. Find features, pricing, pros, cons, and alternatives.

🏆 Best Voice Agent Platform

Vapi

Developer platform for real-time voice AI agents.

Key Features:

  • Workflow Runtime
  • Tool and API Connectivity
  • State and Context Handling

Usage-based

Bland AI

Phone calling API for scalable conversational voice agents.

Key Features:

  • Workflow Runtime
  • Tool and API Connectivity
  • State and Context Handling

Usage-based

Retell AI

Conversational voice infrastructure for call center automation.

Key Features:

  • Workflow Runtime
  • Tool and API Connectivity
  • State and Context Handling

Usage-based

ElevenLabs

High-fidelity text-to-speech and conversational voice stack.

Key Features:

  • Workflow Runtime
  • Tool and API Connectivity
  • State and Context Handling

Free + Paid

Deepgram

Speech-to-text and voice agent APIs with real-time streaming.

Key Features:

  • Workflow Runtime
  • Tool and API Connectivity
  • State and Context Handling

Usage-based

AssemblyAI

Speech AI APIs for transcription and summarization.

Key Features:

  • Workflow Runtime
  • Tool and API Connectivity
  • State and Context Handling

Usage-based

LiveKit Agents

Realtime media platform with agent framework for voice/video assistants.

Key Features:

  • Workflow Runtime
  • Tool and API Connectivity
  • State and Context Handling

Open-source + Cloud

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