Free SERP API & Keyword API
Looking for a free SERP API or a free keyword API to test against real data? Every Kwinside account includes 20 free API requests per day — shared across the keyword research, SERP and competitors APIs — with no credit card required to get started.
What you get for free
- 20 free requests / day on every account — no trial expiry, no card.
- Free keyword search volume — suggestions and monthly search volumes from a database of billions of keywords in 6 languages.
- Free SERP data — keyword positions, rankings by date and best-ranking pages for any domain.
- Always-free test keywords — test, apple, samsung, nokia never count against your limit.
How the free SERP & keyword API works
Sign up, grab your API key from your profile, and call a simple REST endpoint — for example GET /api/v1/keywords?se=en&kw=test for keyword data, or the SERP API and Competitors API for rankings and competitor analysis. Responses are clean JSON, ready to drop into your app.
Need more than the free tier?
When you outgrow 20 requests a day, Kwinside stays pay-as-you-go: just $0.002 per request ($2,000 per 1,000,000), a $20 minimum top-up, and your choice of a plan or pay-as-you-go. See full pricing.