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Tavily

Tavily is a hosted MCP server for answer-focused web search and extraction. The connected endpoint exposes 0 tools for finding and reading web information.

Add to Longwave

Install elsewhere

Install Tavily

Choose a harness. These instructions connect to the hosted MCP endpoint shown on this page.

Claude Code

Run this in your terminal. It adds a user-scoped server; use --scope project instead if it should apply only to the current project.

terminal 
claude mcp add --scope user --transport http --header 'Authorization: Bearer YOUR_TAVILY_API_KEY' tavily https://mcp.tavily.com/mcp

Replace each YOUR_… value with the required secret before running the command.

What it does

Tavily MCP gives an agent a search connection built for research tasks. The agent can search the web, extract pages and use the returned information without a separate copy-and-paste step.

  • Search the web for a question or topic.
  • Extract readable content from a page.
  • Crawl or retrieve information through Tavily's MCP functions.
  • Pass search parameters explicitly through supported arguments.
  • Keep the Tavily API key in the connection instead of the prompt.

Questions people ask

Does Tavily MCP need an API key?

Yes. Longwave needs a Tavily API key.

  1. Open the Tavily dashboard .
  2. Copy an API key.
  3. Click Add to Longwave on this page.
  4. Paste the key when Longwave asks.
How do I get a Tavily API key?

A Tavily API key connects the hosted service to Longwave.

  1. Open the Tavily dashboard .
  2. Sign in or create a Tavily account.
  3. Copy an API key.
  4. Paste the key into Longwave when it asks.
How do I use Tavily MCP with Claude Code?

Claude Code can search the web through Tavily.

  1. Click Add to Longwave on this page.
  2. Paste your Tavily API key when Longwave asks.
  3. Start a thread and pick Claude Code.
  4. Ask Claude Code to search the web.
How do I use Tavily MCP in Cursor?

Cursor can search the web through Tavily.

  1. Click Add to Longwave on this page.
  2. Paste your Tavily API key when Longwave asks.
  3. Start a thread and pick Cursor.
  4. Ask Cursor to search the web.
Is Tavily free?

Tavily has a free monthly credit allowance, then bills for more. Agent loops hit that cap fast. See Tavily pricing . Longwave does not charge you for Tavily.

What is the difference between Tavily search and extract?

Search finds pages for a question. Extract reads a URL you already have.

  • Use search when you need to discover sources.
  • Use extract when you already have a page URL.
Can Tavily crawl a whole website?

Yes. Give the agent the site or page URL, then choose the operation that matches your goal.

  • Ask it to map the site when you need its URLs first.
  • Ask it to crawl when you need content from multiple pages.
  • Ask it to extract when you already have a page URL.
Why do I hit the Tavily rate limit so fast?

Each search and extract spends credits. Agents retry and fan out, so a free allowance disappears in one session.

  1. Search once for the question.
  2. Reuse the returned sources for the next agent step.
  3. Cache results before you run another search.
What is Tavily Research?

Research writes a cited report. Search returns sources. Use search when the agent should read pages itself.

  • Use Research when you need a cited report.
  • Use search when you want the agent to inspect the returned pages.
Can Tavily search only news?

Yes. Tavily supports news search and time ranges.

  1. Start a Tavily search request.
  2. Set the topic to news.
  3. Set a time range when you need recent results.
Does Tavily work with LangChain?

Yes, as a Python search tool. This page is the MCP listing for Longwave, not the LangChain package.

What is the difference between Tavily and Exa?

Tavily is built to answer a question. Exa is built to find pages by meaning. Use Tavily for a short answer and Exa when you need the actual pages.

What is the difference between Tavily and Firecrawl?

Tavily searches. Firecrawl reads and crawls pages into markdown. Use Tavily to find sources and Firecrawl to read a URL or a whole site.

What is the difference between Tavily and Perplexity?

Perplexity is an answer engine you chat with. Tavily is a search API you give an agent. This page adds Tavily to Longwave.

Give research a real search tool.

Let the agent find and read web sources instead of guessing from stale context.

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