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Exa API key, MCP, and Search benchmark

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Exa passed every retrieval attempt and was the quickest provider by median latency in each of our three cases. Its card-free Starter plan is the easiest clean launch path in this set, although publication-date metadata was less complete than Perplexity's.

#1of 3
Search API retrieval benchmark

Passed all nine attempts and recorded the lowest median latency in each case on the benchmark machine.

Last checked Oct 1, 2026 4 primary sources Tested by All Them APIs
Payment setupNo credit card required
Signup pathEmail verification code and a short product onboarding wizard
API accessA default API key was already present after onboarding
Agent Bench evidence

9 of 9 retrieval attempts passed.

All Them APIs ran three source-finding cases three times each under search-agent-retrieval-v1 v1.0.0.

All Them APIs · Retrieval v1.0.0

Primary-source retrieval

9/9attempts passed
All three cases passed

Passed every retrieval attempt and recorded the lowest median latency in all three cases on this machine.

Primary source
Rank 1
Snippets
100%
Date fields
33%
Requests
9/9
Date metadata appeared on one third of normalized results. Lower observed latency here is not a global performance or reliability claim.
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Documentation map

Exa API key, MCP server, and Search setup

Exa's hosted MCP can be tried without an API key. Direct Search API and SDK requests use a dashboard key; our account started without a payment card and the benchmark ran against the API endpoint.

Exa MCP serverHosted endpoint and setup for Claude Code, Codex, Cursor, and other clientsSearch API referenceRequest parameters, search modes, contents, and result shapeGet an Exa API keyOpen the Exa dashboard to create and manage credentialsExa API pricingStarter access, request pricing, credits, and rate limitsExa vs Perplexity Search APICompare the same nine retrieval attempts, setup requirements, and metadata coverage
Agent verdict

Can a coding agent use Exa? Yes.

Exa offers a direct Search API, official SDKs, and MCP access. Starter credits and a default key make it possible to begin without entering a payment card.

Fast observed retrieval; card-free start
Review fit, workflows, and caveats

Good fit

  • Latency-sensitive agent loops
  • Semantic search plus page contents
  • Teams that need a card-free evaluation path

Check before shipping

  • Date metadata appeared on 33% of normalized results
  • Content retrieval can add separate usage cost
  • Observed latency comes from one machine and network

Common workflows

  • Search documentation, repositories, and changelogs
  • Retrieve page text and highlights
  • Find semantically similar pages
  • Ground coding agents with current web context
Recommended setupOfficial JavaScript SDK
Node.js / TypeScriptnpm install exa-js

Set EXA_API_KEY in the environment and request only the content fields the agent needs.

Pythonpip install exa-py

Use the official Python client for typed search and content retrieval.

Direct RESTPOST https://api.exa.ai/search

Send x-api-key and normalize result URL, title, text or highlights, and published date.

Open official setup documentation
Reference

API limits and source records

Base URL, authentication, pricing, SDKs, rate limits, and checked documentation.

API basics
Base URL
https://api.exa.ai/search
Authentication
API key and x402 payment for direct requests
Free tier
$20 signup credit and $10 monthly credit currently advertised
Credit card
No credit card required
Rate limit
10 Search QPS on Starter; up to 25 Search QPS on pay as you go
Testing
Starter access includes all endpoints and 10 Search QPS without a payment method
2 official SDKs
JavaScript / TypeScriptPython
4 checked sources
Search API referenceendpoint · parameters · result shapeAPI pricingfree access · card requirement · credits · QPS · pricingMCP serverMCP access · agent integration · card-free setupRate limitsendpoint limits
Pricing, status, and alternatives
PricingStatusChangelogGitHubPerplexity SearchParallel Search

See something inaccurate?

Email faizank@docsalot.dev with the API name and an official source link.