AI Research & Search
Exa
AI-native search engine and API built for semantic, meaning-based queries rather than keywords.
Free tierwebapi
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DEV-TOP · horizontalWhat it does
Exa (formerly Metaphor) is a search engine built specifically for AI applications and power users, indexing the web for semantic/neural search so queries can be phrased naturally instead of as keyword strings, with both a web app and a developer API.
This is a direct link to Exa — we don't currently earn anything from it.
Free tier reality
Free tier includes a limited number of searches/API credits per month before usage-based billing applies.
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DEV-MID · rectangleKey features
- Semantic/neural search, not just keyword matching
- Web app plus a developer API
- Filters by date, domain, and content type
- Built for feeding AI agents and RAG pipelines
Best for
- Finding content that matches meaning/intent, not exact keywords
- Developers building AI apps that need web search as a tool
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DEV-BOTTOM · horizontalExa FAQ
Questions about this tool
Is Exa free?
Yes — Free tier includes a limited number of searches/API credits per month before usage-based billing applies.
What is Exa best for?
Finding content that matches meaning/intent, not exact keywords Developers building AI apps that need web search as a tool
What platforms does Exa run on?
Exa is available on: web, api.