ChatAPI – PWA to Use ChatGPT by API
I've built this PWA to use ChatGPT by API. My main motivation was to use the API since it is much cheaper than the premium plan and I only pay for usage. The main inspiration was ChatGPT-web by Niek [1], but I was lacking time to dig into the code base to make changes. Hence I went for a lightweight approach with Alpine.js and Open Props. There is no build step, the dependencies are fetched via CDN. In general it was much fun to work with Alpine.js - being a parent means having very little time. So it was great to not have to invest 20h into learning a new framework. My main ask was…
ChatAPI – PWA to Use ChatGPT by API launched on October 19, 2023 with 32 votes, #1,288 of 4,393 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
ChatAPI is a progressive web app that lets developers use OpenAI's ChatGPT API directly through a browser interface. Built with Alpine.js and Open Props, it requires no build step and loads dependencies via CDN. It's designed for developers who want to avoid ChatGPT's premium subscription costs and instead pay only for API usage. The app includes dynamic syntax highlighting for code snippets and can be self-hosted from the provided source code.
written from the facts on this page · September 2026
From the sources
💭 Chat with AI via API. Contribute to david-haerer/chatapi development by creating an account on GitHub.
In the maker’s words, at launch
I've built this PWA to use ChatGPT by API. My main motivation was to use the API since it is much cheaper than the premium plan and I only pay for usage. The main inspiration was ChatGPT-web by Niek [1], but I was lacking time to dig into the code base to make changes. Hence I went for a lightweight approach with…
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