ChatHN – Chat with Hacker News using natural language
Hi again Hacker News! OpenAI recently launched "Function Calling", which is a way for developers to describe functions to GPT-3.5/4 and have the model intelligently choose to output a JSON object containing arguments to call those functions. I decided to tinker around with it this weekend and build an MVP that uses OpenAI Functions + Vercel AI SDK to "chat" with the Hacker News API using natural language, in real time! It's fairly basic for now (supported functions: https://github.com/steven-tey/chathn/blob/main/app/api/chat/...) but…
In plain words
ChatHN enables users to query the Hacker News API using natural language conversation instead of traditional search. Built with OpenAI's Function Calling and the Vercel AI SDK, it interprets user questions and automatically retrieves relevant stories, comments, and user information in real time. The tool is designed for Hacker News readers who want a more conversational way to explore content on the platform.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hi again Hacker News! OpenAI recently launched "Function Calling", which is a way for developers to describe functions to GPT-3.5/4 and have the model intelligently choose to output a JSON object containing arguments to call those functions. I decided to tinker around with it this weekend and build an MVP that uses OpenAI Functions + Vercel AI SDK to "chat" with the Hacker News API using natural language, in real time! It's fairly basic for now (supported functions: https://github.com/steven-tey/chathn/blob/main/app/api/chat/...) but just wanted to launch this as a proof of concept (PoC)! Hope y'all like this :)
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