# The best free real-time AI voice agent platforms Every option in the catalog for when you need to build a phone agent that listens and answers live — 10 real-time AI voice agent platforms, 10 of them free or freemium, with the pricing tier printed on every row. ## Stats - 10 tools listed - 10 free or freemium - 6 with no paid plan at all - 1 sub-categories covered ## FAQ ### What are the best free real-time AI voice agent platforms? Flocci AI Tools lists 10 of them, ordered free tiers first: Bolna, Kyutai Unmute, LiveKit Agents, Pipecat and TEN Framework. Every one of them is free or has a free tier. Each entry states what it uniquely does rather than a score. ### Which of these are completely free? 6 on this page are marked fully free with no paid plan at all: Bolna, Kyutai Unmute, LiveKit Agents, Pipecat and TEN Framework. The remaining 4 are freemium, trial or paid, and each is labelled with its exact tier so nothing surprises you at sign-up. ### How is this list ordered? Free tools first, then freemium, then trial, then paid, and alphabetically inside each tier. Nobody pays to appear higher: Flocci AI Tools carries no ads, no sponsored slots and no paid listings, so the order reflects price and nothing else. ## Quick picks ### Which real-time AI voice agent platforms work in a browser with no install? Bolna, Kyutai Unmute, Bland AI, Retell AI and Ultravox all work in a browser tab with no install needed — just open the site and go. 6 of the 10 free real-time AI voice agent platforms listed here are browser-based. ### Which real-time AI voice agent platforms let you sign in with Google? Retell AI, Ultravox and Vapi support Google sign-in, so you can start without creating a new account. That's 3 of the 10 free real-time AI voice agent platforms on this page. ### Which real-time AI voice agent platforms can you self-host or run offline? LiveKit Agents, Pipecat and TEN Framework can be self-hosted or run locally without a browser — useful for privacy, air-gapped networks, or avoiding API rate limits. 3 of the 10 free real-time AI voice agent platforms here run offline. ## Tools - [Bolna](https://aitools.flocci.in/tool/bolna) — Free — Open-source framework for phone voice agents, from an India-based team - [Kyutai Unmute](https://aitools.flocci.in/tool/kyutai-unmute) — Free — Wraps any text LLM with Kyutai's streaming speech-to-text and text-to-speech for voice conversation - [LiveKit Agents](https://aitools.flocci.in/tool/livekit-agents) — Free — Apache-2.0 open-source framework, fully self-hostable on your own servers - [Pipecat](https://aitools.flocci.in/tool/pipecat) — Free — BSD-2-Clause open-source Python framework for real-time voice/multimodal agents - [TEN Framework](https://aitools.flocci.in/tool/ten-framework) — Free — Open-source framework for real-time conversational voice and multimodal agents - [XiaoZhi AI](https://aitools.flocci.in/tool/xiaozhi-ai) — Free — Open-source ESP32 voice chatbot with wake word, Opus streaming and a display - [Bland AI](https://aitools.flocci.in/tool/bland-ai) — Freemium — All-in-one per-minute pricing bundles LLM+STT+TTS with no separate token pass-through charges - [Retell AI](https://aitools.flocci.in/tool/retell-ai) — Freemium — Free starting credit with no contract required - [Ultravox](https://aitools.flocci.in/tool/ultravox) — Freemium — Speech-native processing skips the STT-to-text bottleneck, preserving tone/cadence/pitch - [Vapi](https://aitools.flocci.in/tool/vapi) — Freemium — Orchestrates STT/LLM/TTS providers of choice into one low-latency voice-agent pipeline --- Source: Flocci AI Tools — https://aitools.flocci.in/best/best-real-time-voice-agents Facts last verified: October 2026