Build an AI Agent with Real-Time Web Search in JavaScript

Large language models (LLMs) are great at answering questions, but they have an important limitation: they don’t inherently have access to what’s happening on the web right now. Ask an LLM about a programming concept and it can probably answer from its existing knowledge. Ask it about the latest JavaScript frameworks, today’s news, or the current price of a product, and its answer may be outdated. One way to solve this is to give the model a tool or capability that can search the web before concluding its answer. You might have already seen this pattern in modern AI assistants. For instance, here’s what it looks like in Gemini. Your browser does not support the video tag. In this concise tutorial, we’ll build something similar but slightly bare-bones. A small AI agent in JavaScript that can decide when it needs to search the web, use SearchApi to retrieve Google search results, and then use those results to formulate its answer. $ node agent.js "What are the latest developments in PHP…