Multi-agent voice + chat platform

Build agents that speak and listen

Create, test, and deploy AI agents with chat, voice, and document context. Ground every response in your knowledge base — powered by Gemini and Neon pgvector.

Real-time voiceRAG-powered answersOne-line embed
Hi! I'm your support agent. I can answer questions about pricing, features, and onboarding — grounded in your docs.
What's included in the Pro plan?
Pro unlocks voice mode, unlimited context files, additional agent seats, and production deploy via API keys and embed widget.
Retrieved from pricing.pdf
Ask anything about your product…

Features

Everything you need to ship AI agents

From sandbox to production in one platform. Chat, voice, retrieval, and deployment — without stitching together five different tools.

Streaming chat

Deploy conversational agents with AI SDK streaming. Every reply grounded in your uploaded context.

Live voice

Gemini Live over WebSocket. Talk naturally in the playground, then ship voice to production.

Document RAG

PDF, DOCX, markdown, images, audio, and video — chunked, embedded, and retrieved via pgvector.

Multi-agent

Run separate agents for support, sales, and onboarding — each with its own prompt and knowledge.

Developer-first deploy

REST chat API, WebSocket voice, and a one-line embed widget. API keys with losono_sk prefix.

Custom system prompts

Fine-tune personality and boundaries per agent

Sandbox mode

Test safely before publishing to production

Conversation logs

Review every interaction and track usage

How it works

From idea to live agent in minutes

No infrastructure to manage. No vector database to configure. Just build, test, and ship.

01

Create your agent

Sign in with Google, name your agent, and write a system prompt that reflects your brand voice.

02

Upload context

Drop in docs, PDFs, and media. Losono chunks, embeds, and indexes everything in Neon pgvector.

03

Test in playground

Chat and talk to your agent in sandbox mode. Preview retrieved context before going live.

04

Publish & deploy

Flip the switch, generate API keys, and embed a widget on your site — or integrate via REST.

Pricing

Start free, scale when you're ready

No credit card required to begin. Upgrade to Pro when you need voice, unlimited context, and production deployment.

Free trial

$0 forever to start

Perfect for exploring the platform and building your first agent.

  • 1 chat-only agent
  • Up to 3 context files (10 MB each)
  • Playground testing
  • Document RAG with pgvector
  • Custom system prompts
Start free
Most popular

Pro

Per seat billed monthly

Everything you need to ship voice agents and embed them in production.

  • Voice playground & deployed voice
  • Unlimited context files per agent
  • Additional agent seats
  • Embed widget & API keys
  • Conversation logs & usage tracking
  • Production publish mode
Upgrade to Pro

Developers

Ship with three lines of code

REST chat with streaming, WebSocket voice, or a drop-in embed widget. Full API reference in the docs.

Read the API docs

Embed widget

<script
  src="https://losono.xorora.com/embed.js"
  data-agent="your-agent-slug">
</script>

Chat API

POST /api/agents/{id}/chat
Authorization: Bearer losono_sk_...

{ "messages": [...] }

Ready to build agents that actually know your product?

Join developers shipping voice and chat agents with grounded, retrieval-augmented responses — in minutes, not months.