Exa
AI-native search API built for retrieval by LLMs and AI agents.
What is Exa?
Exa (formerly Metaphor Systems) is a search API built specifically for AI applications — it uses embeddings-based search to find semantically relevant web pages for a query, rather than keyword matching, making it a common backend for AI research agents and RAG pipelines.
Key features
- Embeddings-based semantic web search
- Built for LLM/agent retrieval, not humans
- Content and similarity search endpoints
Pricing
FreemiumFree tier, usage-based paid plans
Verify on the official pricing page →Exa use cases
- 1Powering AI research agents
- 2RAG pipeline web retrieval
- 3Semantic search over the web
Who is Exa for?
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