Exa web search free through August 31 on AI Gateway and eve

Exa web search is now free on AI Gateway through August 31, and it's now the default web search for eve agents.

The tool works with any AI Gateway model, with no separate Exa API key. When the model calls it, AI Gateway routes the request to Exa's Search API, returning web results and extracted page content with support for domain filters, date filters, and token-efficient excerpts.

The built-in web_search tool in eve now uses Exa by default when the model is served through AI Gateway. See other supported search configurations in the eve docs.

To use it with the AI SDK, pass gateway.tools.exaSearch() to the tools parameter of a generateText call:

import { gateway, generateText, stepCountIs } from 'ai';
const { text } = await generateText({
  model: 'openai/gpt-5.6-terra',
  prompt: 'What are the latest developments in AI this week?',
  tools: {
    exa_search: gateway.tools.exaSearch(),
  },
  stopWhen: stepCountIs(3),
});

Read the web search documentation to learn more and get started.