Exa
Exa is a web search API and AI web researcher for AI applications.
About Exa
Exa is a web search API and AI web researcher that retrieves the best, realtime data from the web for your AI. It offers products like web search, crawling, and LLM answers. Exa provides business-grade search and crawling for any web data, allowing users to search across the web, find and enrich data with its Websets feature, and get answers informed by Exa search results.
Quick facts about Exa
Exa is an AI tool tracked by Relve in the AI SEO Tools category. It uses a Freemium pricing model and runs on the web at exa.ai.
The Relve catalog tracks 200+ live AI tools in this category. Exa currently sees roughly 801K monthly site visitors, with a Domain Rating of 96 on Ahrefs' authority scale. User reviews score it 5.0/5 across 79 ratings.
Closest alternatives: Framer, 10Web, AISEO, HARPA AI, Byword. Compare Exa head-to-head with any of these on the /compare surface — same feature axes, pricing tiers, and traffic side-by-side.
Best for: teams looking for ai seo tools-class capabilities with a freemium entry point. The Relve editorial team refreshes traffic, ranking, and feature data for Exa on a rolling 24-hour cycle, so the numbers above reflect the most recent snapshot of where the tool sits in the market.
Key Features
Search API
Search
The fastest, most accurate web search API to give agents the context they need.
Exa Instant
Improved neural search with sub-200ms latency; returns results in under 180ms.
Exa Deep
Search type with smart query expansion and high-quality summaries; supports deep-reasoning and structured outputs with field-level grounding.
Auto Search
Default search type that intelligently combines Exa's proprietary neural search with other search methods.
Find similar links
Endpoint to find pages similar to a given URL.
Contents & Extraction
Contents endpoint
Get the full page contents, summaries, and metadata for a list of URLs. Returns instant results from cache, with automatic live crawling as fallback for uncached pages.
Highlights
Text snippets the LLM identifies as most relevant from each page; extracts the most relevant excerpts from pages for your query.
Summary
Summary of the webpage returned with results.
Structured Output
Search with output schema to extract structured data (e.g., company_name, ceo_name, founded_year) from Exa's index.
Livecrawl / Content Freshness
maxAgeHours and livecrawl options control when livecrawling is triggered based on content freshness.
Subpages crawling
Crawl a configurable number of subpages of search results, with optional subpageTarget term.
Answer
Answer
Endpoint that returns answers grounded in web search.
Websets
Websets
Asynchronous search system that creates a Webset, automatically searching and verifying results based on your criteria.
Criteria-based verification
Items that pass verification and match your search criteria are automatically added to the Webset.
Enrichments
Optional enrichments process each item to extract specific data points; results added to the item's data.
Bulk Export
Export the complete Webset (items, content, verifications, enrichments) once it becomes idle.
Webhook events
Real-time events (webset.created, webset.search.created, webset.item.created, webset.item.enriched, webset.search.completed, webset.idle).
Monitors
Exa Monitors
Schedule recurring Exa searches and get results delivered to your webhook, with automatic deduplication and structured output.
Search behavior (auto-add)
Monitors automatically run new searches to find fresh content matching criteria; new items added with automatic deduplication.
Refresh behavior
Update existing items by refreshing their content from source URLs or re-running specific enrichments.
Cron scheduling
Set update frequency with a Unix cron expression and IANA timezone (defaults to Etc/UTC).
Verticals & Indexes
People Search
State-of-the-art people search with 1B+ indexed profiles.
Company Search
Improvements to company search via fine-tuned retrieval model and entity-matching pipeline; database of 70M+ companies.
Code search index
Dedicated high-quality web index for code/code docs.
News index
Dedicated high-quality news index.
Financial data index
Dedicated high-quality financial data index.
Filters
Domain Path Filter
includeDomains and excludeDomains support URL path filtering and subdomain wildcards.
Geolocation Filter
userLocation parameter biases search results based on geographic location.
Language Filtering
Detects query language and only searches web search results in the same language; on by default.
Developer & API
Python SDK
Official Python SDK for Exa.
JavaScript SDK
Official JavaScript/TypeScript SDK (exa-js).
Exa MCP Server
MCP server exposing search_exa and query_docs_filesystem_exa tools over HTTP.
Websets MCP
Dedicated MCP server for Websets.
OpenAPI Specification
Public OpenAPI spec for the Exa API.
Prompt builder
Interactive prompt builder for the API in the dashboard.
Security & Admin
Zero Data Retention
Customized ZDR ensures all queries and data can be automatically purged based on requirements.
SOC 2 Type II Certified
Security framework maintains compliance with industry standards for safe information processing and access control.
Single Sign-On (SSO)
Seamless, secure login experience with built-in team authentication and authorization management.
Team Management
Admin tooling for managing your team in the dashboard.
Rate Limits
Documented rate limits for API usage.
Use Cases
Pricing
Search with contents
- $7 per 1000 requests with 10 results
- Text and highlights included
- $1 per 1000 additional results beyond 10
Summaries
- $1 per 1000 summaries
- Applies to both search and contents endpoints
Exa Deep
- $12 per 1000 requests
- Text and highlights for 10 results per request included free
Exa Deep (Reasoning)
- $15 per 1000 requests
Contents endpoint
- $1 per 1000 pages per content type
Enterprise
- Zero Data Retention available
- Customized data security solutions
Integrations(19)
Native integrations· 19
Built for
Powering coding agents with low-latency web search
For: Developer / coding agent builders
Reducing token budgets and LLM costs by over 50% via highlights
For: Builders of AI agents that consume web content
Deep web research with structured outputs for enrichment workflows
For: Teams building enrichment workflows requiring web search
Grounding AI in the real world in a model-agnostic way
For: Developer platforms / model routers
Research workflows: gathering sources, documenting, building briefs
For: Research / results innovation teams
Weekly monitor for Series A funded companies
For: Investors / market intel teams
Frequently asked questions
Reviews (0)
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Quick Info
Traffic Sources
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Compare Exa head-to-head
Side-by-side breakdown vs the top alternatives — pricing, traffic, features.