Exa Alternatives: Web Search APIs for AI Agents
Exa isn't one API anymore. It's a search endpoint, a page-contents endpoint, an answer endpoint, a list builder, a monitor and a research agent. So the best Exa alternative depends on which of those you actually use. For plain search from an independent index, pick Brave Search API. For flat, predictable per-request billing, pick Perplexity's Search API. For answers or structured JSON straight from the search call, pick Linkup. For list building and monitoring, Parallel is the closest match to Exa's Websets and Monitors. Tavily, Firecrawl and SerpApi cover narrower jobs.
This guide maps each part of Exa to the tool that replaces it, using each vendor's own docs.
Quick Comparison
| Tool | Replaces this part of Exa | What you get back | How it bills |
|---|---|---|---|
| Exa | All of it | Results with text, highlights or summaries; answers; lists | Pay as you go, per request, per product |
| Brave Search API | Search | Web results or compact LLM Context from Brave's own index | Prepaid credits, no subscription |
| Perplexity Search API | Search | Ranked results with page text, no generated answer | Flat price per request, no token billing |
| Perplexity Agent API | Answer, Agent | Model answers with built-in web search and tools | Model tokens plus tool calls |
| Linkup | Search, Contents, Answer, Agent | Ranked URLs, a sourced answer or structured JSON | Pay as you go, per request |
| Parallel | Search, Agent, Websets, Monitors | Compressed excerpts, research runs, verified lists | Per request or per run, by mode |
| Tavily | Search, Contents | Ranked snippets, extract, crawl, research | Credits |
| Firecrawl search | Search plus Contents | Results with optional full-page markdown | Credits |
| SerpApi | None directly | Parsed Google, Bing and other engine results | Monthly plan by search volume |
What Exa Does Today
Exa's search docs describe a web search API that takes a natural-language query and returns ranked results with clean page content in one request. You choose a search type for the speed you need: lite at roughly 300 ms, auto at about a second, and deep-lite or deep for multi-step research that takes several seconds.
Around that core, Exa's API now covers:
- Contents for pulling text, highlights and summaries from URLs you already have
- Find similar for pages like a given URL
- Answer for a cited LLM answer to a question
- Monitors for scheduled searches that send new results to a webhook
- Agent for async research, list building and enrichment
- Websets for building verified, enriched lists of companies, people and other entities
Exa runs its own crawler and index. Its FAQ says that, as of October 2026, the index tracks over 2 trillion URLs and serves 100 billion pages. That's the vendor's own figure.
Billing is pay as you go with no subscription and no minimum spend, according to Exa's pricing docs. Every product has its own per-request rate, and extra results and page summaries are billed on top. New accounts get a monthly free credit allowance.
Why teams look for an Exa alternative
- Several meters. A single agent run can call search, contents and answer, each billed separately. That's clear on paper and hard to forecast in practice.
- Query style. Exa works best when you describe the page you want. Some teams would rather send a question and get back a fact.
- Vendor concentration. If search, research and lead lists all go through one company, an outage or price change hits everything at once.
When Exa is still the right call
Exa is hard to beat if you need semantic search with page text in one call, "find pages like this one", and list building from the same account. If your bill is predictable and quality is good on your queries, there's no reason to move.
Exa Search API Alternatives
Brave Search API: an independent index
Best for: teams that want every result from one known index, with clear data rules.
The Brave Search API FAQ says every result comes from Brave's own independent index, crawled and ranked by Brave, with no fallback to another search engine. Endpoints cover web, news, images and video, plus an Answers endpoint and an LLM Context endpoint that returns ranked, extracted content sized for a model. Goggles let you choose which sites ground your model.
Billing uses prepaid credits rather than a subscription, and Brave lists a monthly free-call allowance. On data, Brave says queries aren't shared or trained on. Storing results or training models on them requires a custom plan.
Versus Exa: Brave is the closest like-for-like swap, since both run their own index. Exa has more research and list-building products on top. Brave has more control over sources.
Perplexity Search API: one flat price per request
Best for: teams that want raw results and a bill they can work out in their head.
Perplexity's Search API returns real-time ranked results as structured data, with page text extracted into each result. There's no model and no generated answer. You can filter by domain, language and region, request 1 to 20 results, and send several queries in one request.
Perplexity's pricing docs list one flat price per 1,000 requests with no token billing.
Versus Exa: simpler billing, but no contents endpoint for URLs you already have and no list building.
Parallel Search: built around an objective
Best for: agents that can say what they're trying to find, not just which keywords to use.
Parallel offers Search, Extract, Task (deep research), Responses, FindAll and Monitor APIs. Its Search API takes a natural-language objective plus one to three short keyword queries and returns excerpts shaped for a model's context window. Parallel's docs include a guide for migrating from Exa, Tavily, Brave, Perplexity and SERP APIs.
Versus Exa: both put the intelligence in the request. Parallel asks for a goal and keywords. Exa asks for a description of the page.
Alternatives for Answers, Research and Lists
Linkup: a fact, not a page
Best for: apps that want a cited answer or JSON in a fixed shape straight from search.
Linkup has a Search endpoint that returns ranked URLs, a sourced answer or structured JSON, a Fetch endpoint that turns a URL into LLM-ready markdown, and a Research endpoint for longer multi-step work. Its Exa migration guide maps each Exa call to a Linkup one: Search to Search, Contents to Fetch, Answer to Search with a sourced-answer output, and Exa Agent to Research.
The guide also names the real difference. An Exa query describes the page you want and returns that page. A Linkup query is an instruction to a search agent and returns a fact with its source. So you'll rewrite queries, not just endpoints.
Linkup's pricing page describes pay-as-you-go billing per request, with free queries to start.
Perplexity Agent API: answers with your choice of model
Best for: teams using Exa's Answer endpoint who want more control over the model.
Perplexity's Agent API is its recommended upgrade from the older Sonar chat completions. One API calls models from OpenAI, Anthropic, Google, xAI, NVIDIA and others, alongside Perplexity's own Sonar model. Built-in tools include web search, URL fetching, a code sandbox and MCP connections. Effort levels run from fast to xhigh.
Versus Exa: it's a model API with search built in, not a search API with an answer bolted on. You pay model tokens plus tool calls.
Parallel FindAll and Monitor: the Websets and Monitors swap
Exa's Websets start from a natural-language query and a target count, check each candidate against your criteria, then enrich the ones that pass. Parallel's FindAll API does the same kind of job: discover and enrich entities from the web from a natural-language query, with streaming events and webhooks. Its Monitor API tracks web changes with scheduled queries and webhook notifications, which is what Exa Monitors does.
Parallel's pricing page bills FindAll per run plus per match, Monitor per check, and Task per successful run by processor tier.
Versus Exa: a similar shape. Exa also has a no-code Websets dashboard, which helps if non-developers build the lists.
Other Options for Specific Jobs
Tavily: search, extract and crawl together
Tavily bundles Search, Extract, Crawl, Map and Research behind one credit system, per its docs. It's now owned by Nebius, and Tavily says in its post on joining Nebius that nothing changes about how you use the API. Pick it when you want site crawling and search from one vendor. We compare Tavily with its own rivals in Tavily alternatives.
Firecrawl search: when every result needs the full page
Firecrawl's search endpoint returns titles, descriptions and URLs, and can scrape each result in the same call into markdown, HTML, links or screenshots. You can filter by categories such as research, developer and government content. It's a crawler first, so it fits agents that always read whole pages. Our Firecrawl alternatives guide covers the scraping side.
SerpApi: what Google actually shows
SerpApi parses results from Google, Bing, Baidu, Brave and many other engines, including Google AI Mode and AI Overview results. It lists a free plan with 250 searches a month. You get result pages, not cleaned content, so your agent still has to fetch each page. Use it for rank tracking or when you need the exact Google view.
You.com
You.com also sells search APIs for agents. Its GitHub organization publishes agent skills for web search, content extraction and research, plus a bridge to its hosted MCP server. Read its current API docs for limits and pricing, and test it on your own queries before you commit.
How to Choose an Exa Alternative
| What you use Exa for | Look at first | Why |
|---|---|---|
| Plain web search | Brave Search API | Own index, LLM Context endpoint |
| Predictable search spend | Perplexity Search API | Flat per-request price |
| Cited answers or JSON | Linkup | Answer and structure in the search call |
| Answers with your own model choice | Perplexity Agent API | Many model families, built-in search |
| Websets and Monitors | Parallel | FindAll and Monitor APIs |
| Search plus crawling | Tavily or Firecrawl | Extract and crawl endpoints |
| Exact Google results | SerpApi | Parsed engine results |
Three checks before you switch:
- List the Exa endpoints you call. If it's only
/search, almost anything here works. If you use Websets orfindSimilar, your options shrink fast. - Price a whole agent run. Add up searches, page fetches and answers for one real task, then compare.
- Rewrite a few queries. Exa-style page descriptions don't always transfer. Linkup and Parallel both say their best results come from queries written their way.
If your model already has search built in, you may not need an API at all. Our guide to Claude web search covers what the built-in tool handles.
Where Taku Fits
Taku isn't a search API, and it doesn't replace Exa or anything on this list. Search APIs give an agent the web. The harder limit for many agents is that they're stuck inside one app.
That's the bet Taku is making. Most AI lives inside an app. Taku OS builds it into the operating system, so it can work across your apps, camera, sensors and the devices around you. AI belongs in the OS. The OS belongs to you.
FAQ
What is the best Exa alternative?
For plain search, Brave Search API, because it also runs its own index. For flat billing, Perplexity's Search API. For answers and structured output, Linkup. For Websets-style list building, Parallel.
What are Exa's main competitors?
Tavily, Brave Search API, Perplexity, Linkup, Parallel and You.com sell search APIs for agents. Firecrawl overlaps on search plus scraping, and SerpApi on raw search engine results.
Exa vs Tavily: which is better?
Neither wins everywhere. Exa is stronger on semantic search, finding similar pages and list building. Tavily bundles search, extract, crawl and map under one credit system. Test both on your own queries.
Is there a cheaper alternative to Exa?
It depends on your mix of calls. Perplexity's Search API and Brave use simple per-request pricing, and Parallel's Search has a low-cost mode. Price a full agent run on each, not one call.
Does Exa have its own search index?
Yes. Exa runs its own crawler and index, and its FAQ describes an index tracking over 2 trillion URLs as of October 2026.
Is there an open source Exa alternative?
Not a full one. The hosted search APIs here all depend on a commercial index. You can self-host scraping with open-source crawlers, but you'd still need a search source to find pages.