# PolyAI

> Build voice and chat agents with flows, tools and human handoff.

## Facts
- **Category:** [Voice Agents](https://agentsearchengine.app/category/voice-agents)
- **Type:** Platform
- **Listed pricing:** Paid product
- **Official site:** https://poly.ai/
- **Listing on Agent Search Engine:** https://agentsearchengine.app/agents/polyai
- **Record checked:** October 2026

## Best for
Teams building customer-facing voice or chat agents with connected workflows and transfer to people.

## Avoid if
You need a published all-in voice rate or assume free account creation includes ongoing production calls.

## About PolyAI
PolyAI provides a hosted platform for voice and chat agents. Agent Studio, a code-based development kit and REST interfaces configure knowledge, flows, tools and deployments. Documentation describes sandbox and live environments, telephony integrations and human handoff. Free account creation is distinct from ongoing voice operation, which the pricing page bills per minute through a quote. This review did not place calls, execute tools or validate latency, resolution or security claims.

## More tools in the category
PolyAI sits in voice agents. These are related catalogue records, not verified substitutes:
- [Pipecat](https://agentsearchengine.app/agents/pipecat) — Compose voice and multimodal agents with Python processing pipelines. · Open source · Framework · 16k★ · Python · BSD-2-Clause · repository push 3 days ago
- [LiveKit Agents](https://agentsearchengine.app/agents/livekit-agents) — Build voice and multimodal agents that participate in LiveKit rooms. · Open source · Framework · 15k★ · Python · Apache-2.0 · repository push 3 days ago
- [xiaozhi-esp32-server](https://agentsearchengine.app/agents/xiaozhi-esp32-server) — Backend service for xiaozhi-esp32 -- helps you quickly build an ESP32 device control server. · Open source · Infrastructure · 11k★ · JavaScript · MIT · repository push 9 days ago
- [ten-vad](https://agentsearchengine.app/agents/ten-vad) — Voice Activity Detector (VAD): low-latency, high-performance and lightweight · Open source · SDK / library · 2.3k★ · C · repository push 8 months ago
- [bailing](https://agentsearchengine.app/agents/bailing) — A GPT-4o-like voice conversation robot built from ASR+LLM+TTS, integrating strong models like DeepSeek R1 and openClaw -- a genuine personal voice assistant with latency as low as 800ms. · Open source · Agent · 1.8k★ · Python · MIT · repository push 6 months ago
- [CyberVerse](https://agentsearchengine.app/agents/cyberverse) — Self hosted, real-time digital human agent platform. Build voice-first AI agents with WebRTC, persona memory, tools, RAG, and optional digital-human video. · Open source · Platform · 1.7k★ · Python · GPL-3.0 · repository push 27 days ago
- [Wally](https://agentsearchengine.app/agents/rcli) — Run open models on your own machine, or hosted when the job outgrows it. · Open source · Agent · 1.6k★ · C++ · MIT · repository push 2 days ago
- [Patter](https://agentsearchengine.app/agents/patter) — Open-source voice-AI SDK. The Vapi/Retell alternative for builders who want to own the stack. · Open source · SDK / library · 1.1k★ · Python · MIT · repository push 5 days ago

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