AI Agents & Automation (6)

All 6 real-time AI voice agent platforms in the Flocci catalog, 6 of them free or freemium. Pricing tier and real capabilities on every entry — no ads, no sponsored placement.

AllGeneral Autonomous AgentsWorkflow AutomationAgent Frameworks (Developers)Real-Time Voice AgentsBrowser & Computer-Use AgentsMCP EcosystemAgent Memory & RAG-as-a-Service

Vapi

Real-Time Voice Agents
freemium
  • Orchestrates STT/LLM/TTS providers of choice into one low-latency voice-agent pipeline
  • Usage-based per-minute pricing with free trial minutes included
  • SOC 2/HIPAA/PCI compliance add-ons for regulated call-center deployments
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Retell AI

Real-Time Voice Agents
freemium
  • Free starting credit with no contract required
  • Supports swapping GPT, Claude or Gemini as the reasoning layer per agent
  • Batch calling campaigns plus live AI-to-human call transfer built in
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Bland AI

Real-Time Voice Agents
freemium
  • All-in-one per-minute pricing bundles LLM+STT+TTS with no separate token pass-through charges
  • Free start with call credits plus an inbound number included
  • Tiered platform fees (Build/Scale) unlock lower per-minute rates for high volume
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LiveKit Agents

Real-Time Voice Agents
free
  • Apache-2.0 open-source framework, fully self-hostable on your own servers
  • Native WebRTC client support across web/mobile/telephony out of the box
  • Native Model Context Protocol (MCP) support for tool-using voice agents
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Pipecat

Real-Time Voice Agents
free
  • BSD-2-Clause open-source Python framework for real-time voice/multimodal agents
  • Supports distributed multi-agent systems with handoffs over a shared bus
  • Maintained by Daily with an active plugin ecosystem for STT/LLM/TTS providers
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Ultravox

Real-Time Voice Agents
freemium
  • Speech-native processing skips the STT-to-text bottleneck, preserving tone/cadence/pitch
  • Free tier: 5¢/min including TTS for up to 5 concurrent calls
  • Open-weight models (fixie-ai) published on Hugging Face for research use
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Real-Time Voice Agents — straight answers

What are the best free real-time AI voice agent platforms?

Flocci AI Tools lists 6 real-time AI voice agent platforms, ordered free tiers first: LiveKit Agents, Pipecat, Bland AI, Retell AI and Ultravox. All of them are free or have a free tier. Every entry states what it uniquely does, not a score.

Are there completely free real-time AI voice agent platforms?

Yes — 2 of these are marked fully free with no paid plan attached: LiveKit Agents and Pipecat. The rest are freemium, trial or paid, and each row states which.

What should I look for in real-time AI voice agent platforms?

Start with what you need to do: build a phone agent that listens and answers live. Then check the pricing tier, because "free" here means no paid plan at all while "freemium" means a free tier under paid plans. Every tool on this page lists both.

See the full list →

Looking for a ranked shortlist instead? See the best free real-time AI voice agent platforms.