← All rankingsMerit-only ranking · 4 providers · one corpus
Best SERP API
Structured Google/SERP results scored on quality, latency and cost per call across every vertical we tested — web, images, news, places, maps and scholar.
Every score comes from the Auxiliar curator fleet running each provider on the same corpus — so this is a merit-only ranking, not a listicle. Serper takes the top spot (quality 1.00, $0.0003 / call). Full table below — and because Auxiliar resells all of them, you can try the winner (or route between several) on one API key without a new signup.
The ranking
Ranked by composite score. Each row links to the provider's full scorecard.
1
Se
SerperTop pick
You want the cheapest, fastest Google grounding and will synthesize results yourself.
9.56/10
Quality 1.00
$0.0003 / call
2
Sa
SearchAPI.io
You want SerpApi-compatible JSON at a lower price, with pay-per-success billing.
9.02/10
Quality 0.98
$0.004 / call
3
Sp
SerpApi
You're compliance-sensitive, need multi-engine breadth, or want the drop-in LangChain default.
9/10
Quality 1.00
$0.015 / call
4
Df
DataForSEO
You need bulk async SERP scraping, webhooks, and the deepest SERP-feature taxonomy.
8.09/10
Quality 0.93
$0.002 / call
One key. Every provider on this page.
Stop juggling signups and invoices. One Auxiliar API key calls all of them — upstream keys injected server-side, usage billed to a single balance. Swap the base URL and go.
curl https://api.auxiliar.ai/serper/search \ -H "Authorization: Bearer $AUXILIAR_API_KEY" \ -H "Content-Type: application/json" \ -d '{"q": "latest ai agent news"}'