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Exa

Neural search API built for AI agents (formerly Metaphor).

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About

Exa (exa.ai, formerly Metaphor) is the neural search API built for AI agents: semantic search over the web with clean, structured results designed for LLM consumption.

The agent-search default — when your agent needs to look something up, Exa returns content, not SEO spam. Usage-based pricing with a free tier. Strong developer docs.

What it can do

  • Neural web search
  • Clean LLM-ready results
  • Contents extraction
  • Built for agents
  • Strong docs

Setup

  1. Sign up at exa.ai and get an API key.
  2. POST /search with your query.
  3. Use /contents to extract page text.

Prerequisites

API key.

Use cases

automationcodedata

Works with

Generic APIAny agent (.md)

Trust score — 7/10

/10 trustMetrics-checked

Scored 7/10 (metrics tier). The agent-search default with excellent docs, but proprietary with provider-estimated adoption. Metrics tier.

How the trust score is built

Full methodology →
Adoption · stars/downloads, log-scaled vs peers
8.0/10
Maintenance · recency, releases, issue load
7.0/10
Openness · license + docs
4.8/10
Manual review · sanity read + red-flag check
8.0/10
  • · provider-tier estimate — thinner evidence (no public adoption metric)
  • · neural search API for agents (ex-Metaphor); no public repo — adoption estimated
  • · released 285 days ago
  • · manual review: Exa — neural search API built for AI agents; strong developer docs; license: proprietary

Sources

Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.