AI search API for semantic web search, content retrieval, and grounding AI agents with real-world data.

Features

What is Exa? Exa (formerly Metaphor) is an AI search API designed to power agents and applications with high-quality web search. It provides semantic search, content crawling, natural language answers, and in-depth research with structured output. Exa is used by Notion, Cursor, OpenRouter, and others to ground AI in real-world data. The API offers a free tier and enterprise plans with custom data retention and SLAs.

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