How it works

Migrate or build something new

Getting started

Set up once. About 30 minutes.

Getting started is a one-time setup. You bring your preferred coding agent and cloud account, and Rethrow uses them for every app you migrate or build thereafter.

  1. 1

    Add a card on file

    Rethrow charges a flat fee per migration and per Studio app. No credits to buy, and no markup on your cloud or agent.

  2. 2

    Bring your coding agent

    Use the coding agent subscription you already have, or sign up for one. You pay your agent provider directly.

  3. 3

    Create your cloud account

    Your app runs in a cloud account you own, like AWS. Connect it to Rethrow with a guided setup. You pay your cloud provider directly.

Want a hand? We’ll set it up with you.Book a setup call

Bring your own agent

Your coding agent, now a cloud architect.

Rethrow doesn’t ship an agent of its own. You bring yours, and Rethrow equips it for the cloud, so it plans, builds and deploys like an experienced architect and stays focused on the task at hand.

You bring

Your coding agent

  • Kiro
  • Claude Code
  • OpenAI Codex
  • Cursor Agent
  • Factory Droid
  • Google Gemini

Rethrow adds

  • Agent toolkits

    Skills for planning, building and deploying cloud apps, loaded into every session.

  • Cloud APIs and MCP servers

    Live, scoped access to your cloud account, resources, and APIs for security and cost visibility.

  • Guardrails

    Approved services, least-privilege credentials, and approval before destructive changes.

  • Best practices and steering

    Architecture guidance that keeps your agent on the task at hand, plus your own rules.

Rethrow

You get

An expert cloud architect

  • Plans in specs you can read
  • Builds on your own cloud
  • Deploys and verifies its work

Pick your path

Two ways in. A tech stack you own.

Step 1 of 5

Connect your app

Pick where you built it, link your GitHub repository, and paste one prompt into your builder so it exports what it knows about your app.

Rethrow Studio

Launch day is just the start.

Keep building in Rethrow Studio: describe a change, watch your agent make it, preview it live, and publish. Everything your app runs on stays in view.

Prompt, preview, publish.

Describe a change and watch your agent make it beside a live preview of your app. Publish when it looks right.

  • Default mode for simple changes
  • Spec mode for complex features
  • Agent guidance for consistent operations
  • Review code and change history

Rethrow migration agents

The agentic loop

Rethrow migration agents connect to your source environment, assess current state, and create a migration plan. With your approval, Rethrow migration agents rearchitect your app one spec at a time in a deterministic loop that writes, deploys, and verifies its work before moving on. Your source environment remains unaffected until post-migration cutover. A spec is a single, logical unit of work encapsulated in a structured requirements, design, and task document.

Watch the technical deep dive

What happens under the hood, auto-magically

N specs
Write specs
Start spec
Write code
Deploy
Verify
All checks pass?
Commit & push
More specs left?
Migration done
Retries left?
Escalate to human
Feed failure to agent
Increment retry
Rethrow agentPassRetryFail
  1. Start spec
  2. Build
  3. Deploy
  4. Verify
  5. Loop

Ready to cross the
vibe coding cliff?