Voice agents, demystified: STT+TTS and 4 demo agents you can talk to in the browser + build yours with RAG and Tools
artificial
Voice agents, demystified: STT+TTS and 4 demo agents you can talk to in the browser + build yours with RAG and Tools
I added voice to AgentSwarms! You can create voice agents using a few clicks and talk to it in the browser — and you can try 4 demo voice agents right now, no setup, just tap the mic. Here's how it works and why it turned out to be less &quot...
artificial

Voice agents, demystified: STT+TTS and 4 demo agents you can talk to in the browser + build yours with RAG and Tools

Voice agents, demystified: STT+TTS and 4 demo agents you can talk to in the browser + build yours with RAG and Tools

I added voice to AgentSwarms! You can create voice agents using a few clicks and talk to it in the browser — and you can try 4 demo voice agents right now, no setup, just tap the mic. Here's how it works and why it turned out to be less "new" than I expected.

The surprise building this: a voice agent is basically the chat agent you already know, with a voice on top. Same system prompt, same tools, same RAG, memory, and guardrails. Under the hood it's a simple loop — your mic gets transcribed to text (OpenAI GPT-40-mini-transcribe), your agent replies exactly like it would in chat, and that reply gets spoken back (OpenAI GPT-4o-mini-TTS). The agent's brain doesn't change at all. You've just added ears and a voice.

Which is the whole point: everything you've already learned building chat agents carries straight over. If your agent can pull an answer from a knowledge base, call a tool, or respect a guardrail in text, it does all of that out loud too — because it's the exact same engine with audio on the two ends, not a separate stripped-down "voice mode."

What I shipped

  • New Voice Agent in the builder: pick a voice (11 of them), a greeting, and your STT/TTS models. That's the whole setup.
  • Every spoken reply runs the same pipeline as a chat agent — tools, knowledge base, memory, and guardrails all apply.
  • A Voice Playground: tap the mic, talk, and hear the reply back, with the transcript on screen so you can read along.

Talk to it (free, in the browser) — 4 demos, tap the mic:

  • Aria — customer support triage
  • Nova — B2B discovery caller
  • Kai — Spanish conversation tutor
  • Echo — daily standup coach

Open one, talk to it, and fork it into your own workspace if you like it.

Disclosure: AgentSwarms school of Agentic AI for both no-code people and developers— a learn-by-building platform. The demos are free. Happy to answer anything about the setup in the comments.

submitted by /u/Outside-Risk-8912
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