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Exa

Free tier

Web search API, website crawler, and deep research engine built for AI agents

Free tier available·Technical·API available

Key strengths

Fastest search API with results under 180ms (Exa Instant)Best-in-class accuracy on FRAMES, Tip-of-Tongue, and Seal0 benchmarksToken-efficient highlight extraction reducing token usage by up to 90%Supports structured outputs across 70M+ company enrichmentsUnified API covering search, crawling, and deep research in one endpoint
Free tier + paid plans
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Recent changes

  • Plans updated: Free tier: $10 credits/month + $10 onboarding bonus (no card required). Pay-as-you-go: Search from $4/1k requests, Contents $1/1k pages, Agent $0.012–$1.00/run, Deep Search $12–15/1k requests, Monitors $15/1k requests. Enterprise: custom pricing.
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Technical Use Cases

Exa is optimized for AI agent architectures and LLM pipelines that require reliable, low-latency web retrieval. Common developer use cases include:

  • Retrieval-Augmented Generation (RAG) — Feed Exa's token-efficient highlights directly into LLM context windows, cutting token costs by up to 90% versus raw web scraping
  • Coding agents — Use the code-specialized search vertical to retrieve relevant repositories, documentation, and Stack Overflow-style content programmatically
  • Agentic research loops — Chain the Deep Search endpoint ($12–$15/1k requests) for multi-step synthesis tasks within autonomous agent workflows
  • Real-time web monitoring — Poll the Monitors endpoint to trigger agent actions on new web content matching defined queries
  • Data enrichment pipelines — Combine Exa's people and company search verticals with ZoomInfo, Crunchbase, Harmonic, or Similarweb integrations for structured B2B data enrichment
  • Scholarly and scientific retrieval — Query the scholarly vertical for academic content without building a custom index
  • Enterprise chatbots — Deploy with zero data retention and HIPAA/SOC 2 compliance for regulated industries

Exa's sub-180ms latency and structured output format make it a drop-in retrieval layer for both streaming and batch agent architectures.

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