Give your OpenAI assistant browser tools with function calling

Give Your OpenAI Assistant Browser Tools with Function Calling OpenAI's function calling lets your assistant invoke real tools mid-conversation. Here's how to add browser capabilities — screenshots, page inspection, PDF generation — so your assistant can actually see and interact with the web. Define the tools import OpenAI from " openai " ; import fetch from " node-fetch " ; const client = new OpenAI (); const PAGEBOLT_API_KEY = process . env . PAGEBOLT_API_KEY ; // Tool definitions passed to the API const tools = [ { type : " function " , function : { name : " take_screenshot " , description : " Take a screenshot of a web page and return it as a base64-encoded image. Use this to visually inspect a page, check a layout, or verify that something rendered correctly. " , parameters : { type : " object " , properties : { url : { type : " string " , description : " The full URL to screenshot (e.g. https://example.com) " , }, fullPage : { type : " boolean " , description : " Whether to capt