An API for SEO competitor analysis

Competitor analysis starts with finding who actually ranks for your queries — often not the rivals you expect. The Kwinside competitors API returns how many sites compete in TOP-1 to TOP-100, the rival domains, their keywords and their positions, as JSON.

What you can build

Keyword-gap reports, "who outranks us" tables, niche maps and competitive monitoring. Combine rivals' keywords with your own positions to find terms they win and you do not.

Endpoints to use

Use GET /api/v1/competitors/tops and GET /api/v1/competitors/list to find competing domains, GET /api/v1/competitors/keywords for their keywords, and GET /api/v1/competitors/rank for positions. See the competitors API docs.

Why Kwinside fits

SERP, keyword and competitor data sit on one balance, billed per request — so a full competitor sweep stays cheap and you can run it as often as the niche moves.

Get your free API key — 20 requests/day

Frequently asked questions

How do I find my SEO competitors with an API?
The Kwinside competitors API returns the domains that actually rank for your target keywords and search engine, so you can identify real SERP competitors programmatically.
Can I see competitors' keywords?
Yes — the competitors keywords endpoint returns the keywords rival domains rank for, which you can use for gap analysis.

Related use cases

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