Guide
You can create Custom Apps with Claude, ChatGPT, or your agent of choice. Go put those subsidized tokens to good use! Here’s a short demo:
https://www.youtube.com/watch?v=h1S-ahPXPMg
All you need is an agent that can work with files: Claude Code or Codex would do as well as Cowork and, hm, Work. The process is very easy:
Connect Fibery MCP Server if you haven’t
Tell your agent to create a custom app
The agent will extend your Databases as needed, develop the app locally, and then upload the result to Fibery. You can both create new apps or iterate on existing ones this way.
Building custom apps via MCP doesn’t consume Fibery AI credits, only your AI provider’s limits, so it’s most certainly more economical for you.
Q&A
Why can't my chat AI change custom apps?
Building or editing a custom app means the AI has to download its source files, change them and upload them back. This works in tools that can work with files and make HTTP calls on your machine (Codex, Claude Code, Claude Cowork). A plain chat such as ChatGPT usually can't, so it connects fine but can't change custom apps.