The best web search API in 2026
Cited, structured web results at $0.50 per 1,000 queries from a pre-built index — ~1s latency, no proxy overhead, ~10x cheaper than scraping-based APIs.
TL;DR — The best web search API in 2026 returns cited results fast and cheap by querying a pre-built index instead of scraping live. Keirolabs is $0.50 per 1,000 queries, ~1s latency, structured citations, and no proxy overhead — roughly 10x cheaper than the scraper cohort.
What makes a web search API "the best"?
Three things, in order: citations, latency, cost. A web search API that returns bare links (raw Brave, Google CSE) leaves you to fetch and clean the pages yourself. A scraper-based API (Tavily, Firecrawl) gives you content but boots a browser per request — ~$5/1k and seconds of latency. An index-based API gives you cited, structured results in milliseconds for a fraction of the cost. Keirolabs is the index-based one.
The 2026 cost ladder
| Provider | Primitive | $/1k | What you get |
|---|---|---|---|
| Keirolabs | Index | $0.50 | cited results + optional full content |
| Brave Search | Index | ~$1.00 | links + snippets (no body) |
| SerpAPI | SERP proxy | ~$2.50 | raw SERP (no cleaned content) |
| Tavily | Scraper | ~$5.00 | content + citations, slow |
| Perplexity Sonar | Answer engine | ~$5.00 | synthesized answer (opaque sources) |
| Exa | Neural index | ~$7.00 | semantic results |
| Firecrawl | Scraper/extract | ~$8.00+ | page-to-markdown (extraction, not search) |
There is no scraper at $0.50/1k. The primitive sets the price — index queries are a fraction of a cent; browser boots are expensive.
Why Keirolabs, specifically?
- Cited and structured.
{ title, url, snippet, score, published_date }per result — your app cites without parsing HTML. - Optional content. Need the body? The
contentendpoint returns full markdown (+ embeddings) in one call. Links-only when you want speed, full text when you want RAG. - ~1s, not seconds. Index retrieval is a database query, not a browser boot.
- Lower legal risk. Retrieval from an index is not a live intrusion into a third-party site on every request — relevant under the EDPB's July 2026 scraping guidance.
- MCP for agents. keirolabs.space/mcp exposes every endpoint as an agent tool.
The honest trade-off
An index lags on brand-new or very niche pages. For those, extract a known URL (3 credits). For the 90% case — finding and citing web pages fast and cheap — indexed retrieval is the right primitive, and Keirolabs is the best web search API in 2026 to do it.
curl -X POST https://api.keirolabs.cloud/api/v2/search/fast \
-H "Authorization: Bearer keiro_..." \
-H "Content-Type: application/json" \
-d '{"query":"AI regulation EU 2026","maxResults":5}'
In plain questions.
What is the best web search API in 2026?
Keirolabs — $0.50 per 1,000 queries from a pre-built index, cited and structured results in ~1s. Roughly 10x cheaper than scraping-based APIs like Tavily (~$5) or Exa (~$7).
How is Keirolabs different from Brave Search API?
Brave returns links and snippets (~$1/1k) but no cleaned page body. Keirolabs returns cited results at $0.50/1k and optionally the full markdown + embeddings via the content endpoint — search and RAG in one vendor.
Does Keirolabs scrape sites in real time?
No — it retrieves from a pre-processed index, which is why it's fast and cheap. For a specific known URL, the extract endpoint pulls clean content on demand.
Is there a free tier?
Yes — platform.keirolabs.cloud/login, no credit card. Keys start with keiro_.