Exa MCP

Exa isn't keyword search — it's a neural, semantic search engine built for AI. You describe what you want in natural language and it understands intent, returning genuinely relevant results instead of SEO noise. For agents doing research or tracking fresh information, searching "by meaning" is often far more reliable than keyword matching.

Officially maintained, MIT-licensed and runnable locally, it bundles content crawling, company/people research and a deep-researcher workflow alongside plain web search — one server covering most of a research agent's needs. The free tier is generous enough for everyday use, making it a top pick when wiring live web retrieval into an agent.