About bld402

What is bld402?

bld402 is a free service that lets anyone build and deploy a web application without writing any code or having any technical knowledge. You describe what you want to any coding agent (like Claude Code, ChatGPT Codex, or similar), and bld402 guides the agent through building it for you.

How does it work?

When you paste the bld402 link into your coding agent's chat, it reads a structured workflow that walks it through every step: understanding what you want, picking a starting template, setting up the backend, generating the code, and deploying your app to a live URL you can share with anyone.

The whole process takes minutes, not hours. And you never see a single line of code.

What's run402?

run402 provides the infrastructure behind your app: the database where your data lives, the API that connects everything, user accounts, file storage, and web hosting. bld402 is a free layer on top that makes run402 accessible to anyone through AI agents.

What does it cost?

bld402 itself is completely free. The apps you build run on run402, where the prototype tier is free — no real money, no credit card. Your prototype lasts 7 days. If you want to keep your app running longer, run402 has paid tiers starting at $5/month.

Who built this?

bld402 is built by Kychee, an AI-first software company. We're building tools that let AI agents do real work autonomously — including paying for the infrastructure they use, so you don't have to manage accounts or billing yourself. bld402 and run402 are our core products — making software creation accessible to everyone, not just programmers.

Contact us

Email: info@kychee.com

Company: Kychee, Inc.