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How to Add Web Search to a LangChain.js Agent (No API Key)

This story is from 2026-10-22. It is preserved in the archive; the latest stories are on the live feed.

How to Add Web Search to a LangChain.js Agent (No API Key) A LangChain.js agent only knows what its model learned in training until you give it a web search tool. The @agentsearchhq/langchain package lets you add web search to a LangChain.js agent in a few lines of TypeScript: a free LangChain.js w…

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  1. 2026-10-22 14:27 · DEV Community — AI
    How to Add Web Search to a LangChain.js Agent (No API Key)

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