Build Your Own Voice-First AI Jarvis Tier by Tier With Claude Code
From an empty repo to a talking, tool-using, always-on assistant: text loop, tools, speech, memory, background loop, safety rails
Build Your Own Voice-First AI Jarvis Tier by Tier
By the end of this guide, you'll understand the six-tier build that turns an empty repo into a voice-first assistant with Claude Code, Cursor, or Codex: a text conversation loop, a tool registry, speech in and out (Deepgram for transcription, ElevenLabs for voice), memory that survives restarts, an always-on background loop so the agent can reach out first, and safety rails that keep a proactive assistant from doing something you did not ask for. The approach comes from creator kevinfremon's viral reel and the Trillion page 'Build Your Own Voice-First AI Agent', which packages the whole build as one interview-first mega-prompt.
Who This Is For
• Marketers and operators who want a personal assistant that can actually do things, not just chat
• Builders comfortable in Claude Code, Cursor, or Codex who want a staged, verifiable build
• Anyone who has seen the Jarvis videos and wants the real architecture behind them
What You'll Have
• A text-only conversation loop you can debug before adding audio
• A tool registry so the agent can take real actions
• Real speech in and out via Deepgram and ElevenLabs
• Persistent memory, an always-on background loop, and safety rails on proactive behaviour
What You'll Need
• Claude Code, Cursor, or Codex and an empty repo
• API keys for Deepgram (transcription), ElevenLabs (voice), and the Claude API
• The full mega-prompt from hellotrillion.ai/p/start-here, which is unlocked by signing up with your own email
• A first job you want your assistant to do
Going Further
— Guide: Build Your Own AI Jarvis: The Full Stack Reveal (AI Foundation)
— Guide: Build an Autonomous Claude Agent That Finishes Your Work Overnight (AI Agent)
— Guide: Automate Your Morning Briefing and Inbox Management With Claude as Your Executive Assistant (AI Tools)