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Appofficial publisher

Exa

App : A product you use directly

Search engine designed for agents, with an official MCP integration.

The most relevant web search for an agent, ahead of classic APIs.

Official site
Overall score
8.1 /10
Security: nothing to flag
Utility
8.0
Reliability
6.0
Security
No caveat on record
Ease
5 min · Comfortable

Security reflects where data goes, requested permissions and incidents on record at the verification date. It is not a guarantee of zero risk: check the deployment mode and the connections you enable.

What it does, concretely

AI agents need access to accurate, up-to-date web information, but traditional search engines are not designed to be queried programmatically: their results are too verbose, too slow, or too unreliable for automated use.

Exa offers a search API built for agents. It indexes over 1.4 trillion URLs, returns relevant excerpts rather than full pages, and can produce structured outputs (JSON) directly usable by a language model. Latency varies depending on the chosen mode: under 180ms in instant mode, around 450ms in fast mode, and up to about ten seconds for deep research.

Exa is primarily aimed at developers building AI agents, automated research pipelines, or applications that require real-time web data. Teams such as Cognition (Devin) and HubSpot use it to supply their agents with relevant context.

However, Exa is not a consumer-facing search engine with a polished visual interface. A user simply looking to browse the web without writing code or using an agent will find little use for it.

What it offers

  • ·Real-time web search across an index of over 1.4 trillion URLs, with three configurable latency levels.
  • ·Relevant excerpt extraction (highlights) to reduce by up to 90% the number of tokens passed to the model.
  • ·Structured JSON outputs for specialised verticals: companies, people, news, code, and academic research.
  • ·Agent API for deep research with verifiable citations and structured results.
  • ·Coverage of over 70 million companies with automatically extracted enrichments.
  • ·Official MCP integration, compatible with Claude Code among others.
  • ·SOC 2 Type II, GDPR, CCPA, and HIPAA compliance, with zero query data retention (paid).

In practice

Price
Freemium
Commercial use
Commercial use: yes
Available on
web, claude-code

Security and data

Rating
Security: nothing to flag
Your data
Data with the vendor
Maintenance
Active

Links and repository checked on 25 October 2026 · added on 1 June 2023

How to install Exa

1. Create an account at exa.ai and retrieve your API key from your dashboard. 2. Never share this key publicly or commit it to a version-controlled repository. 3. Install the client for your environment (see install_cmd for Python). 4. Configure the MCP integration in Claude Code by entering your API key in the tool settings. 5. Test a first query in the API Playground to verify the connection works before integrating it into your agent.

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