Best free Bolna alternatives

Looking for a free alternative to Bolna? Here are 9 real-time voice agents worth trying — 5 with a free tier. Bolna itself is free.

ToolBolna (you searched)LiveKit AgentsPipecatKyutai Unmute
Pricingfreefreefreefree
Best forOpen-source framework for phone voice agents, from an India-based teamApache-2.0 open-source framework, fully self-hostable on your own serversBSD-2-Clause open-source Python framework for real-time voice/multimodal agentsWraps any text LLM with Kyutai's streaming speech-to-text and text-to-speech for voice conversation
VisitOpen ↗Open ↗Open ↗Open ↗

Bolna alternatives — straight answers

What is the best free alternative to Bolna?

LiveKit Agents is the closest free alternative to Bolna: same Real-Time Voice Agents sub-category, and it is free. Apache-2.0 open-source framework, fully self-hostable on your own servers

Are there free Bolna alternatives?

Yes — 5 of the 9 alternatives listed here are free or freemium: LiveKit Agents, Pipecat, Kyutai Unmute, TEN Framework, XiaoZhi AI. None of them are paid-only.

Is Bolna free?

Bolna is free. There is no paid plan attached to it in the catalog.

How were these Bolna alternatives chosen?

They are the other tools in Real-Time Voice Agents, then the rest of AI Agents & Automation, ordered free tiers first and capped at 9. There is no sponsorship and no paid placement in that ordering — only the pricing tier decides.

All Bolna alternatives

Browse Real-Time Voice Agents →

LiveKit Agents

Real-Time Voice Agents
free

✦ WhyA Bolna alternative — Apache-2.0 open-source framework, fully self-hostable on your own servers.

  • 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

Pipecat

Real-Time Voice Agents
free

✦ WhyA Bolna alternative — BSD-2-Clause open-source Python framework for real-time voice/multimodal agents.

  • 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

Kyutai Unmute

Real-Time Voice Agents
freeNew

✦ WhyA Bolna alternative — Wraps any text LLM with Kyutai's streaming speech-to-text and text-to-speech for voice conversation.

  • Wraps any text LLM with Kyutai's streaming speech-to-text and text-to-speech for voice conversation
  • Open-source code and weights that can be self-hosted
  • Low-latency interruptible conversation
  • Free demo available online

TEN Framework

Real-Time Voice Agents
freeNew

✦ WhyA Bolna alternative — Open-source framework for real-time conversational voice and multimodal agents.

  • Open-source framework for real-time conversational voice and multimodal agents
  • Modular graph of extensions in Python, Go, C++ and Node
  • Ships a playground and a VAD and turn-detection model
  • Free to self-host under an open license

XiaoZhi AI

Real-Time Voice Agents
freeNew

✦ WhyA Bolna alternative — Open-source ESP32 voice chatbot with wake word, Opus streaming and a display.

  • Open-source ESP32 voice chatbot with wake word, Opus streaming and a display
  • Free official server lets personal users try a Qwen real-time model after registering
  • Device-side and cloud MCP for controlling IoT gadgets
  • MIT licensed firmware supporting many ESP32 chips

Vapi

Real-Time Voice Agents
freemiumLeaving soon

✦ WhyA Bolna alternative — Orchestrates STT/LLM/TTS providers of choice into one low-latency voice-agent pipeline.

  • 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

Retell AI

Real-Time Voice Agents
freemiumLeaving soon

✦ WhyA Bolna alternative — Free starting credit with no contract required.

  • 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

Bland AI

Real-Time Voice Agents
freemiumLeaving soon

✦ WhyA Bolna alternative — All-in-one per-minute pricing bundles LLM+STT+TTS with no separate token pass-through charges.

  • 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

Ultravox

Real-Time Voice Agents
freemiumLeaving soon

✦ WhyA Bolna alternative — Speech-native processing skips the STT-to-text bottleneck, preserving tone/cadence/pitch.

  • 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

Bolna head-to-head