Exa

by Exa

Freemium

AI-powered search engine and API for finding and retrieving web content semantically

4.3
out of 5.0
Category Coding
Last Updated May 16, 2026
Website exa.ai

Overview

Exa is an AI-native search engine and API that finds web content using semantic understanding rather than keyword matching. Unlike traditional search engines, Exa lets you describe what you're looking for in natural language and returns the most relevant pages, articles, papers, and documents from across the web.

The platform's API is designed for developers building AI applications that need access to real-time web data. Exa can retrieve full page content, find similar pages, and filter by domain, date, and content type. It powers RAG (Retrieval Augmented Generation) pipelines, research agents, and content discovery tools.

Exa targets AI developers, researchers, and companies building LLM-powered products that need grounded, up-to-date information from the web. It competes with Tavily, Serper, and traditional search APIs.

Pricing

Free
$0 /mo
  • 1,000 searches per month for testing and development
Pay
Per-Use API
  • $7 per 1,000 search requests (10 results included)
  • $1 per 1,000 additional results
  • Exa Deep: $12 per 1,000 requests
Pro
$40 /mo
  • Includes API credits and higher rate limits
  • Websets Starter at $49/month for data enrichment
Enterprise
Custom pricing
  • Unlimited resources, dedicated support, and custom crawling

Pros & Cons

Pros

Semantic search finds contextually relevant results that keyword searches miss
Full content retrieval API enables RAG pipelines without additional scraping
Clean, well-documented API designed specifically for AI application developers
Supports similarity search to find pages related to a reference URL
Free tier with 1,000 monthly searches is generous for prototyping

Cons

Primarily an API product — no consumer-facing search interface for non-developers
Pricing can escalate quickly for high-volume production applications
Web index coverage may not match Google's comprehensiveness for niche topics
Relatively new company with a smaller index than established search engines
Content retrieval quality varies depending on website structure and accessibility