About Exa
Exa is a commercial search API designed for AI applications. Instead of matching only keywords, it retrieves pages by meaning, and it returns results as links with content, direct answers or structured outputs that agents and LLM-based apps can use as context.
The product line includes a Search API, a Contents API for fetching page content, an Agent API, a Monitors API, integrations and Exa Connect, plus Websets and an MCP server. Searches can be tuned across speed tiers from fast to deep and can be restricted to categories such as news, companies, research, people and financials. An API playground and demos are provided on the site. Exa is proprietary and vendor-hosted. The API can be tried for free, and the vendor publishes a pricing page, documentation, benchmarks, a trust center and an enterprise offering.
Key features
- Meaning-based web search API
- Contents API for page text retrieval
- Answer and structured output modes
- Category filters such as news and research
- Monitors API for tracking changes
- MCP server and integrations
Good fit for
- →Giving AI agents access to fresh web data
- →Finding companies or people by description
- Tags
- search-api
- web-search
- ai-agents
- semantic-search
- rag
- api
- mcp
Open-source alternatives to Exa
See all
Wigolo
Search
The go-to web for your AI coding agent — local-first search, fetch, crawl & research over
OSSvs Tavily★ 5.4k
SearXNG
Search
SearXNG is a free internet metasearch engine which aggregates results from various search
AGPL-3.0vs DuckDuckGo★ 38k
OpenSERP
Search
Self-hosted SERP API for AI, SEO & automation. Browser-rendered Google, Bing, Yandex, Baid
MITvs SerpApi★ 1.4k
XERJ
Search
XERJ is the new way for AI to search data. Its autoindex capability activates agents to kn
Apache-2.0vs Elastic★ 2.6k
Fess
Search
Open-source, self-hosted enterprise & site search server built on OpenSearch. Crawls web /
Apache-2.0vs Coveo★ 1.1k
Trieve
Search
All-in-one platform for search, recommendations, RAG, and analytics offered via API
MITvs Algolia★ 2.7k
SaaS alternatives to Exa
See all
Tavily
Search
Web search and content extraction API for AI agents
SaaS
Brave Search API
Search
Independent web index exposed through a paid search API
SaaS
SerpApi
Search
API that returns structured results from Google and other search engines
SaaSYou.com
Search
AI-assisted search engine and assistant with web and chat answers
SaaS
Serper
Search
Google Search results API for developers and AI agents
SaaS
Parallel
Search
Web search and research APIs built for AI agents
SaaS

