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Build your first app with a coding agent

From nothing to a live app without leaving the conversation: connect a coding agent, describe what you want, and deploy. Even signing up happens right there. You don't need to write code.

4 steps·Signup included·For Claude Code, Codex, Cursor and more

What you need

✓A coding agent on your computer, like Claude Code, Codex or Cursor
✓Node.js, to run the one setup command
✓A Syntica spot. In closed beta? Join the waitlist

Connect your coding agent

A coding agent is an AI assistant that runs on your computer. It is how apps get built on Syntica: you talk to it, and it writes, changes and deploys the app. One command sets everything up:

$ npx @syntica/mcp setup

Restart your agent afterwards and you're connected. The command finds the agents already on your machine and connects each of them: Claude Code, Codex, Cursor, Windsurf, Gemini CLI and Copilot CLI. The agent pages cover each one.

TipChoosing an agent? Choose Claude Code. It is the only one with a skill runtime, so the Syntica flows arrive as real commands, like /syntica:onboard.

Describe what you want to build

Open your agent in an empty folder and describe the app in your own words, the way you would brief a developer:

"Build a portal where our client's field technicians submit inspection reports with photos, and their manager approves them."

"I need an internal tool that tracks purchase requests through three approval steps and emails the requester at each one."

The agent asks clarifying questions, then creates the app: screens, database, logic. Your job is the functional one: check that it matches what you meant, and keep refining in plain language. You never have to read the code.

Put it live, account and all

In Claude Code, run /syntica:onboard. It sets everything up, including your account: you answer a few questions (name, email, organisation name) and confirm with a one-time code. No registration form, no password. Then run /syntica:deploy and you get a live address back.

On the other agents, just say what you want: "set me up on Syntica and deploy this app." The agent walks the same path with the same tools, including signing you up.

Every app gets separate development, staging and production environments. It's the same deploy step, pointed at a different one.

See it in the dashboard

Everything the agent does shows up at app.syntica.io. Sign in with the same email and a one-time code: your apps, every deployment and its status, logs, and a record of every change. The dashboard is where you manage and check. Building stays in the conversation with your agent.

Good to know

✓No terminal? Build from a chat with Claude instead. Both routes use the same tools on the same apps.
✓On agents other than Claude Code, setup leaves a pointer to the same flows: custom prompts in Codex, rules in Cursor, Windsurf and Copilot CLI, a section in GEMINI.md for Gemini CLI.