Describe the app.
Your AI team builds it.
Relay gives you a team of AI agents that plan, write real code, click through and test the running app, and review security — then hand you something that actually works. No coding required.
Free & local · npx relay-agent-studio · bring your own AI or use a local model
From one sentence to a working app
You describe what you want in plain language. The team takes it from there — and you watch it happen live.
Tell Mira your idea
“A budgeting app with charts.” “A landing page for my bakery.” Mira, the manager, turns it into a plan with a clear definition of done.
The team gets to work
Forge writes real code. Verity opens the running app in a browser and clicks through it like a user. Failures go straight back to Forge to fix.
Watch it live, then ship it
A live preview updates as they work. When every acceptance criterion passes — and a security review clears — you download it or deploy in one click.
Seven specialists, one goal
Each agent has a real job — and they hold each other accountable. Nothing ships until the tester and the security reviewer say so.
Mira
Owns the plan. Assigns work, reads every report, and won’t call it done until it truly is.
Forge
Writes complete, runnable code — real files, real dependencies, precise edits.
Verity
Runs your actual build and clicks through the app in a real browser. A fail is a fail.
Pixel
Shapes the interface — layout, color, and polish, with an eye on the screenshots.
Scout
Drives a real browser to handle the web — research, sign-ups, and site tasks.
Advisor
Brainstorms fresh approaches when the team gets stuck, before anyone bothers you.
Sentinel
Reviews every build and vets every command before release. High-risk means no-go.
Assemble your best team from the AIs you already have
Relay doesn’t lock you into one model. Connect the subscriptions you already pay for, any API key, or a completely free local model — then put the right brain on the right job.
Use ChatGPT & Claude plans you already pay for
Connect your ChatGPT subscription (via Codex) or your Claude subscription (via Claude Code) — no extra API bill. Relay routes agent work straight through them.
Any provider, one adapter
OpenAI, Claude, Gemini, OpenRouter, Groq, DeepSeek, Mistral, xAI, Together — paste a key and it’s on the roster. Costs are tracked per token, with a spend cap you control.
Run on a local model
Point Relay at Ollama or Open WebUI and the whole team runs on your hardware — zero cost, fully private, works offline.
Mix and match freely: a frontier model for Forge’s hard coding, a fast cheap one for testing, a local one for drafts — or flip on smart routing and let Mira assign the best model to each task automatically.
Built to never hand you something broken
Most AI builders generate code and hope. Relay verifies — with ground truth, not vibes.
Tests like a real user
Verity launches your app in a headless browser, clicks buttons, fills forms, and reads errors. Runtime failures force a fix — the model can’t talk its way past them.
Security review built in
Safe Mode reviews code and scans dependencies before anything is called finished, and vets every command an agent wants to run.
Live preview
Watch your app render and hot-reload beside the chat while the team edits — dev servers, full-stack backends, or plain HTML.
Smart model routing
Route each agent to a specific AI by hand, or turn on auto mode and Mira assigns every task to the strongest model for the job.
Restore points & history
Every turn is snapshotted and every change is git-committed. Roll anything back — even without Git installed.
Private by default
Relay runs on your machine. Your projects, keys, and credentials stay local and encrypted — agents never see your secrets.
Up and running in one click
No signup wall, no cloud lock-in. Create an account when you want one — it works either way.
Free · ~100 MB · installs in one click and opens as a desktop app
Relay is early software and isn’t code-signed yet, so Windows SmartScreen won’t recognize it. That’s expected — here’s how to install:
- Open the downloaded
Relay-Setup.exe - When “Windows protected your PC” appears, click More info
- Click Run anyway — Relay installs itself and opens as a desktop app
$ npx relay-agent-studio