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Tavily Search

Tavily Search is a robust search API tailored specifically for LLM Agents. It seamlessly integrates with diverse data sources to ensure a superior, relevant search experience.

Setup​

Set up an API key here and set it as an environment variable named TAVILY_API_KEY.

You'll also need to install the @langchain/community package:

tip

See this section for general instructions on installing integration packages.

npm install @langchain/openai @langchain/community

Usage​

import { TavilySearchResults } from "@langchain/community/tools/tavily_search";
import { ChatOpenAI } from "@langchain/openai";
import type { ChatPromptTemplate } from "@langchain/core/prompts";

import { pull } from "langchain/hub";
import { AgentExecutor, createOpenAIFunctionsAgent } from "langchain/agents";

// Define the tools the agent will have access to.
const tools = [new TavilySearchResults({ maxResults: 1 })];

// Get the prompt to use - you can modify this!
// If you want to see the prompt in full, you can at:
// https://smith.langchain.com/hub/hwchase17/openai-functions-agent
const prompt = await pull<ChatPromptTemplate>(
  "hwchase17/openai-functions-agent"
);

const llm = new ChatOpenAI({
  model: "gpt-3.5-turbo-1106",
  temperature: 0,
});

const agent = await createOpenAIFunctionsAgent({
  llm,
  tools,
  prompt,
});

const agentExecutor = new AgentExecutor({
  agent,
  tools,
});

const result = await agentExecutor.invoke({
  input: "what is the weather in wailea?",
});

console.log(result);

/*
  {
    input: 'what is the weather in wailea?',
    output: "The current weather in Wailea, HI is 64°F with clear skies. The high for today is 82°F and the low is 66°F. If you'd like more detailed information, you can visit [The Weather Channel](https://weather.com/weather/today/l/Wailea+HI?canonicalCityId=ffa9df9f7220c7e22cbcca3dc0a6c402d9c740c755955db833ea32a645b2bcab)."
  }
*/

API Reference:

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